3-D GEOPHYSICAL INC
8-K, 1997-07-18
OIL & GAS FIELD EXPLORATION SERVICES
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT

     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934




Date of Report (Date of earliest event reported)      July 17, 1997



                              3-D GEOPHYSICAL, INC.

             (Exact name of registrant as specified in its charter)


          Delaware                          0-27564              13-3841601
(State or other jurisdiction              (Commission          (IRS Employer
      of incorporation)                  File Number)       Identification No.)



           8226 Park Meadows Drive, Littleton, Colorado       80124
           -----------------------------------------------------------
           (Address of principal executive offices)          (Zip Code)
           ------------------------------------------------------------


Registrant's telephone number, including area code      (303) 858-0500




         (Former name or former address, if changed since last report.)


    This document contains 64 pages. The Exhibit Index is located on page 4.




                               Page 1 of 64 Pages

<PAGE>



ITEM 5.  OTHER EVENTS.

         On July 17, 1997, the Board of Directors of 3-D Geophysical,  Inc. (the
"Company")  authorized  the issuance of one preferred  share  purchase  right (a
"Right") for each outstanding  share of common stock, par value $0.01 per share,
of the  Company.  The  description  and terms of the  Rights  are set forth in a
Rights  Agreement  (the  "Rights  Agreement")  between the Company and  American
Securities  Transfer & Trust, Inc., as Rights Agent (the "Rights Agent"),  dated
as of July 17,  1997 and  attached  hereto as Exhibit 4, and are  summarized  in
Exhibit C to the Rights  Agreement.  The Rights  Agreement,  including Exhibit C
thereto, are hereby incorporated herein by reference.

ITEM 7.  EXHIBITS.

4    Rights Agreement, dated as of July 17, 1997, between 3-D Geophysical,  Inc.
     and American Securities  Transfer & Trust, Inc., as Rights Agent,  together
     with Exhibits A, B, and C attached thereto.



                               Page 2 of 64 Pages



<PAGE>




                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                              3-D GEOPHYSICAL, INC.

                              By:  /s/Joel Friedman
                                   ----------------
                                   Name:  Joel Friedman
                                   Title: Chairman


Date:  July 18, 1997


                               Page 3 of 64 Pages

<PAGE>

                                 EXHIBITS INDEX

EXHIBIT NUMBER                              DESCRIPTION

4                                           Rights  Agreement,  dated as of July
                                            17, 1997,  between 3-D  Geophysical,
                                            Inc.   and    American    Securities
                                            Transfer  & Trust,  Inc.,  as Rights
                                            Agent,  together with Exhibits A, B,
                                            and C attached thereto.


                               Page 4 of 64 Pages







                              3-D Geophysical, Inc.

                                       and

                   American Securities Transfer & Trust, Inc.

                                  Rights Agent




                                RIGHTS AGREEMENT

                            Dated as of July 17, 1997


<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

<S>          <C>                                                                                            <C>
                                                                                                            Page
Section 1.   Certain Definitions.............................................................................1
Section 2.   Appointment of Rights Agent.....................................................................8
Section 3.   Issuance of Rights Certificates.................................................................8
Section 4.   Form of Rights Certificates.....................................................................9
Section 5.   Execution, Countersignature and Registration...................................................10
Section 6.   Transfer, Division, Combination and Exchange of Rights Certificates;
             Mutilated, Destroyed, Lost or Stolen Rights Certificates.......................................11
Section 7.   Exercise of Rights; Purchase Price; Expiration Date of Rights..................................12
Section 8.   Cancellation and Destruction of Rights Certificates............................................14
Section 9.   Reservation and Availability of Preferred Stock................................................14
Section 10.  Preferred Stock Record Date....................................................................15
Section 11.  Adjustments to Purchase Price, Number of Shares or Number of Rights............................16
Section 12.  Certification of Adjustments...................................................................23
Section 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning Power...........................24
Section 14.  Fractional Rights and Fractional Shares........................................................27
Section 15.  Rights of Action...............................................................................28
Section 16.  Agreement of Rights Holders Concerning Transfer and Ownership of
             Rights.........................................................................................28
Section 17.  Rights Holder Not Deemed a Stockholder.........................................................29
Section 18.  Concerning the Rights Agent....................................................................29
Section 19.  Merger or Consolidation or Change of Name of Rights Agent......................................30
Section 20.  Duties of Rights Agent.........................................................................30
Section 21.  Change of Rights Agent.........................................................................32
Section 22.  Issuance of New Rights Certificates............................................................33
Section 23.  Redemption.....................................................................................33
Section 24.  Notice of Certain Events.......................................................................34
Section 25.  Notices........................................................................................35
Section 26.  Amendments and Supplements.....................................................................36
Section 27.  Successors.....................................................................................37
Section 28.  Benefits of this Agreement; Determinations and Actions by the Board of
             Directors......................................................................................37
Section 29.  Severability...................................................................................37
Section 30.  Governing Law..................................................................................38
Section 31.  Counterparts...................................................................................38
Section 32.  Descriptive Headings...........................................................................38
Section 33.  Grammatical Construction.......................................................................38

</TABLE>


                                       -i-


<PAGE>


                                RIGHTS AGREEMENT

         Rights Agreement (this  "Agreement") dated as of July 17, 1997, between
3-D Geophysical,  Inc., a Delaware  corporation  (the  "Company"),  and American
Securities Transfer & Trust, Inc. (the "Rights Agent").

                                 R E C I T A L S

         The Board of Directors of the Company has  authorized  and declared the
payment of a dividend of one preferred  share  purchase  right (the "Right") for
each share of Common Stock (as defined in Section 1)  outstanding  on the Record
Date (as defined in Section 1) and has  authorized the issuance of one Right for
each share of Common Stock issued  between the Record Date and the  Distribution
Date (as defined in Section 1), and, in certain cases following the Distribution
Date.  Each Right  represents,  as of the Record Date, the right to purchase one
one-thousandth  of a share of Preferred Stock (as defined in Section 1) upon the
terms and subject to the conditions hereinafter set forth.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
agreements set forth in this Agreement, the parties hereby agree as follows:

         Section 1. Certain  Definitions.  For purposes of this  Agreement,  the
following terms have the meanings indicated:

         (a) (i) "Acquiring Person" means any Person who or which, together with
all Affiliates and Associates of such Person, is (or has previously been, at any
time after the date of this Agreement,  whether or not such Person(s)  continues
to be) the Beneficial  Owner of 15% or more of the Common Stock then outstanding
(determined   without  taking  into  account  any   securities   exercisable  or
exchangeable  for,  or  convertible  into,  Common  Stock,  other  than any such
securities  beneficially  owned  by the  Acquiring  Person  and  Affiliates  and
Associates of such Person).  However,  "Acquiring  Person" shall not include any
Exempt Person.

            (ii) A Person does not become an  "Acquiring  Person"  solely as the
result  of (A) an  acquisition  of  Common  Stock by the  Company  or any of its
Subsidiaries which, by reducing the number of shares outstanding,  increases the
proportionate  number of shares beneficially owned by such Person to 15% or more
of the Common Stock then outstanding as determined  pursuant to Section 1(a)(i),
or (B) such Person  becoming the  Beneficial  Owner of 15% or more of the Common
Stock then  outstanding  as determined  pursuant to Section  1(a)(i) solely as a
result of an Exempt  Event;  provided,  however,  that if a Person  becomes  the
Beneficial  Owner  of 15% or  more  of the  Common  Stock  then  outstanding  as
determined  pursuant  to  Section  1(a)(i)  solely  by  reason  of  such a share
acquisition  by the Company or the  occurrence  of such an Exempt Event and such
Person shall,  after becoming the Beneficial Owner of such Common Stock,  become
the Beneficial  Owner of additional  shares of Common Stock  constituting  1% or
more of the then  outstanding  shares  of Common  Stock by any means  whatsoever
(other than as a result of the subsequent occurrence of an Exempt Event, a stock
dividend or a subdivision  of the Common Stock into a larger number of shares or
a similar  transaction),  then such Person  shall be deemed to be an  "Acquiring
Person; or (C) the


<PAGE>



inadvertent  acquisition  of  beneficial  ownership of 15% or more of the Common
Stock of the  Company if the Board of  Directors  determines  in good faith that
such acquisition was inadvertent and such Person immediately divests itself of a
sufficient  number of shares of Common Stock so that such Person could no longer
be an "Acquiring Person";  or (D), if such Person is an Institutional  Investor,
such Institutional  Investor becoming the Beneficial Owner of 15% or more of the
Common Stock then  outstanding as determined  pursuant to Section 1(a)(i) solely
by reason of such Institutional Investor's Regular Trading Activities; provided,
however,  that if an Institutional  Investor becomes the Beneficial Owner of 20%
or more of the  Common  Stock  other  than  solely as the  result of the  events
described  in clause  (B) or (C) of this  Section  1(a)(ii)  (and in the case of
clause  (C),  such  Institutional  Investor  immediately  divests  itself  of  a
sufficient  number  of  shares  of  Common  Stock  as that it is no  longer  the
Beneficial  Owner of 20% or more of the Common Stock),  then such  Institutional
Investor shall be deemed an "Acquiring Person."

         (b)  "Affiliate" of a Person has the meaning given to such term in Rule
12b-2 of the General Rules and Regulations  under the Exchange Act, as in effect
on the date of this Agreement.

         (c)  "Associate" of a Person has the meaning given to such term in Rule
12b-2 of the General Rules and Regulations  under the Exchange Act, as in effect
on the date of this Agreement.

         (d) Except as provided  below, a Person is the  "Beneficial  Owner" of,
and "beneficially owns," any securities:

            (i) which such Person or any  Affiliate  or Associate of such Person
beneficially owns, directly or indirectly;

            (ii) which such Person or any  Affiliate or Associate of such Person
has,  directly  or  indirectly,  the right or  obligation  (whether  or not then
exercisable or effective) to acquire  pursuant to any agreement,  arrangement or
understanding  (whether or not in writing),  or upon the exercise of  conversion
rights, exchange rights, rights (other than these Rights),  warrants or options,
or otherwise; provided, however, that a Person will not be deemed the Beneficial
Owner of, or to beneficially  own,  securities  tendered pursuant to a tender or
exchange offer made by or on behalf of such Person or any Affiliate or Associate
of such Person  until such  tendered  securities  are  accepted  for purchase or
exchange;  and provided  further,  that prior to the  occurrence of a Triggering
Event, a Person will not be deemed the Beneficial  Owner of, or to  beneficially
own, securities obtainable upon exercise of the Rights;

            (iii) which such Person or any Affiliate or Associate of such Person
has,  directly or  indirectly,  the right  (whether or not then  exercisable  or
effective)  to vote,  or to direct  the voting of,  pursuant  to any  agreement,
arrangement or  understanding  (whether or not in writing);  provided,  however,
that a Person shall not be deemed the  Beneficial  Owner of, or to  beneficially
own, any security pursuant to this clause (iii) if the agreement, arrangement or
understanding  to vote,  or to direct the voting of,  such  security  (A) arises
solely from a revocable  proxy or consent given in response to a public proxy or
consent  solicitation made pursuant to, and in accordance with, the Exchange Act
and applicable rules and regulations thereunder and


                                       -2-


<PAGE>

(B) is not also then  reportable  on Schedule 13D under the Exchange Act (or any
comparable or successor schedule or report);

            (iv) which such Person or any  Affiliate or Associate of such Person
has  "beneficial  ownership"  of (as  determined  pursuant  to Rule 13d-3 of the
General  Rules  and  Regulations   under  the  Exchange  Act  or  any  successor
provision); or

            (v) which are  beneficially  owned,  directly or indirectly,  by any
other  Person or any  Affiliate or Associate of such other Person with whom such
Person  or any  Affiliate  or  Associate  of  such  Person  has  any  agreement,
arrangement  or  understanding  (whether or not in  writing)  for the purpose of
acquiring, holding, voting (except pursuant to a revocable proxy as described in
subparagraph  (iii) of this Section 1(d)) or disposing of any  securities of the
Company.

         Nothing in this Section 1(d) causes a Person  engaged in business as an
underwriter of securities to be the "Beneficial  Owner" of, or to  "beneficially
own," any securities acquired through such Person's  participation in good faith
in a firm commitment underwriting until the expiration of 40 days after the date
of such acquisition.

         Notwithstanding  anything  in  this  Agreement  to  the  contrary,  for
purposes of this Agreement, no Person is to be treated as the "Beneficial Owner"
of, or to  "beneficially  own," any securities owned by any other Person that is
an Exempt Person.

         (e) "Board of  Directors"  means the Board of Directors of the Company,
as the same is constituted  from time to time, or if the Company ceases to exist
as a result of a Business  Combination  or otherwise,  the board of directors of
the Company's successor, if any.

         (f) "Business Combination" has the meaning set forth in Section 13(a).

         (g) "Business Day" means any day other than a Saturday, Sunday or a day
on  which  banking  institutions  in the  States  of New  York or  Colorado  are
authorized or obligated by law or executive order to close.

         (h) "Close of  Business"  on any given  date  means 5:00 p.m.,  Denver,
Colorado  time,  on such  date;  provided,  however,  that if such date is not a
Business  Day it shall  mean  5:00  p.m.,  Denver,  Colorado  time,  on the next
succeeding Business Day.

         (i)  "Common  Stock"  when used in any  context  applicable  prior to a
Business  Combination  means the Common Stock,  par value $.01 per share, of the
Company (as the same may be changed by reason of any combination, subdivision or
reclassification  of the Common Stock).  "Common Stock" when used with reference
to any Person  (other than the Company  prior to a Business  Combination)  means
shares of capital stock of such Person (if such Person is a corporation)  of any
class or series,  or units of equity interests in such Person (if such Person is
not a corporation) of any class or series, the terms of which shares or units do
not limit (as a fixed amount and not merely in proportional terms) the amount of
dividends  or income  payable or  distributable  on such  shares or units or the
amount of assets distributable on such shares or


                                       -3-


<PAGE>

units upon any voluntary or involuntary  liquidation,  dissolution or winding up
of such  Person  and do not  provide  that such  shares or units are  subject to
redemption at the option of such Person, or any shares of capital stock or units
of equity  interests into which the foregoing  shall be reclassified or changed;
provided,  however,  that if at any time  there are more than one such  class or
series of capital stock of or equity interests in such Person, "Common Stock" of
such  Person  will  include all such  classes  and series  substantially  in the
proportion  of the total  number of shares or other  units of each such class or
series outstanding at such time.

         (j) "Current  Market Price" per share of Common Stock,  Preferred Stock
or Equivalent  Shares on any date is the average of the daily closing prices per
share of such Common  Stock,  Preferred  Stock or  Equivalent  Shares for the 30
consecutive  Trading Days (as such term is  hereinafter  defined)  ending on the
last  Trading  Day  immediately  prior  to  such  date  for the  purpose  of any
computation  under this Agreement except  computations  made pursuant to Section
11(a)(iv),  and for the last Trading Day immediately  prior to such date for the
purpose of any computation under Section 11(a)(iv);  provided,  however, that in
the event that the Current  Market  Price per share of Common  Stock,  Preferred
Stock  or  Equivalent  Shares  is  determined  during  a  period  following  the
announcement  by the issuer of such Common Stock,  Preferred Stock or Equivalent
Shares of (i) a dividend or distribution  on such Common Stock,  Preferred Stock
or Equivalent Shares other than a regular  quarterly cash dividend,  or (ii) any
subdivision,  combination or  reclassification  of such Common Stock,  Preferred
Stock or Equivalent Shares, and prior to the expiration of 30 Trading Days after
the "ex-dividend"  date for such dividend or distribution or the record date for
such subdivision, combination or reclassification,  then, and in each such case,
the "Current Market Price" must be  appropriately  adjusted to take into account
such dividend, distribution,  subdivision, combination or reclassification.  The
closing price for each Trading Day shall be the last sale price, regular way, on
such day,  or, in case no such sale takes place on such day,  the average of the
closing  bid and asked  prices,  regular  way,  on such day,  in either  case as
reported in the principal consolidated transaction reporting system with respect
to  securities  listed or admitted  to trading on the  National  Association  of
Securities  Dealers,  Inc. Automated Quotation System ("Nasdaq") National Market
or, if the Common Stock,  Preferred Stock or Equivalent Shares are not listed or
admitted to trading on the Nasdaq National Market,  as reported in the principal
consolidated  transaction  reporting system with respect to securities listed on
the principal  United States  national  securities  exchange on which the Common
Stock,  Preferred  Stock or Equivalent  Shares are listed or admitted to trading
or, if the Common Stock,  Preferred Stock or Equivalent Shares are not listed or
admitted to trading on any United States national securities exchange,  the last
quoted sale price on such day or, if not so quoted,  the average of the high bid
and low asked prices in the over-the-counter  market on such day, as reported by
Nasdaq or such other  system then in use.  If on any such day the Common  Stock,
Preferred  Stock or Equivalent  Shares are not quoted by any such  organization,
the average of the closing bid and asked  prices on such day as  furnished  by a
professional  market maker making a market in the Common Stock,  Preferred Stock
or Equivalent  Shares  selected by a majority of the Board of Directors shall be
used. If no such market maker is making a market,  the fair market value of such
shares on such day as  determined  in good faith by a  majority  of the Board of
Directors  or the  Board  of  Directors  of the  issuer  of such  Common  Stock,
Preferred Stock or Equivalent Shares must be used, which  determination  must be
described in a statement filed with the Rights Agent and shall be final, binding
and conclusive for all purposes. The term "Trading Day" means a day on which the
principal United States


                                       -4-


<PAGE>

national  securities  exchange  on which the Common  Stock,  Preferred  Stock or
Equivalent  Shares are listed or admitted to trading is open for the transaction
of business or, if the Common Stock,  Preferred  Stock of Equivalent  Shares are
not listed or  admitted  to trading on any  United  States  national  securities
exchange, but are traded in the over-the-counter  market and reported by Nasdaq,
then any day for which  Nasdaq  reports the high bid and low asked prices in the
over-the-counter  market, or if the Common Stock,  Preferred Stock or Equivalent
Shares are not traded in the  over-the-counter  market and  reported  by Nasdaq,
then a Business Day. If the Common Stock,  Preferred Stock or Equivalent  Shares
have not been so listed or admitted to trading  for 30 or more  Trading  Days or
traded in the  over-the-counter  market  and  reported  by Nasdaq for 30 or more
Trading Days,  "Current  Market Price" per share means the fair market value per
share as determined in good faith by a majority of the Board of Directors, whose
determination  must be described in a statement  filed with the Rights Agent and
shall be final, binding and conclusive for all purposes.

         (k)  "Distribution  Date"  means the  earlier  of (i) the day after the
Company's right to redeem the Rights pursuant to Section 23(a)(i)  expires,  and
(ii) the tenth  Business Day after the Tender Offer Date. The Board of Directors
may, at its  election,  defer the date set forth in clause (ii) of the preceding
sentence  to a  specified  later  date  or to an  unspecified  later  date to be
determined by a subsequent action or event.

         (l)  "Equivalent  Shares" means any class or series of capital stock of
the Company, other than the Preferred Stock, which is entitled to participate on
a  proportional   basis  with  the  Preferred   Stock  in  dividends  and  other
distributions,  including  distributions  upon the  liquidation,  dissolution or
winding up of the Company.  In calculating  the number of any class or series of
Equivalent Shares for purposes of Section 11, the number of shares, or fractions
of a share,  of such class or series of capital  stock that is  entitled  to the
same  dividend  or  distribution  as a whole share of  Preferred  Stock shall be
deemed to be one share.

         (m)  "Exchange  Act"  means the  Securities  Exchange  Act of 1934,  as
amended, and any successor statute.

         (n)  "Exchange  Date" means the time at which the Rights are  exchanged
pursuant to Section 11(a)(iv).

         (o) "Exempt Event" means with respect to any Person, the acquisition by
such Person of Beneficial  Ownership of Common Stock of the Company  solely as a
result of the occurrence of a Triggering Event and the effect of such Triggering
Event on the last proviso of clause (ii) of the definition of Beneficial  Owner,
other than a Triggering Event in which such Person becomes an Acquiring Person.

         (p) "Exempt  Person" means (i) the Company,  (ii) any Subsidiary of the
Company,  (ii) any employee  benefit plan of the Company or of any Subsidiary of
the Company,  and (iv) any Person  holding  Common  Stock for any such  employee
benefit plan or for employees of the Company or of any Subsidiary of the Company
pursuant to the terms of any such employee benefit plan.


                                       -5-


<PAGE>

         (q) "Expiration Date" means the Close of Business on July 17, 2007.

         (r)  "Institutional  Investor"  shall mean a Person who is  principally
engaged in the business of managing investment funds for unaffiliated securities
investors  and,  as part of such  Person's  duties as agent  for  fully  managed
accounts,  holds or exercises voting or dispositive  power over shares of Common
Stock.

         (s) "Person" means any individual, firm, corporation, limited liability
company,  partnership,   joint  venture,   association,   trust,  unincorporated
organization or other entity, and shall include any "group" as that term is used
in Rule 13d-5(b) under the Exchange Act (or any successor provision).

         (t)  "Preferred   Stock"  means  the  Company's  Junior   Participating
Preferred Stock, par value $.01 per share, having the rights and preferences set
forth in the  Certificate  of  Designation,  Preferences  and  Rights  of Junior
Participating Preferred Stock attached hereto as Exhibit A.

         (u) "Principal Party" means (i) in the case of any Business Combination
described in clause (i), (ii) or (iii) of the first  sentence of Section  13(a),
(A) the Person that is the issuer of any securities  into which shares of Common
Stock of the  Company  are  converted  or for which they are  exchanged  in such
Business  Combination  or, if there is more than one such issuer,  the issuer of
the Common  Stock which has the  greatest  aggregate  market  value or (B) if no
securities are so issued, the Person that survives or results from such Business
Combination  or, if there is more than one such  Person,  the  Person the Common
Stock of which has the greatest  aggregate market value; and (ii) in the case of
any  Business  Combination  described  in clause  (iv) of the first  sentence in
Section  13(a),  the Person that receives the greatest  portion of the assets or
earning  power  transferred  pursuant to such Business  Combination  or, if each
Person that is a party to such Business Combination receives the same portion of
the assets or  earning  power so  transferred  or if the  Person  receiving  the
greatest portion of the assets or earning power cannot reasonably be determined,
whichever  of such  Persons  is the  issuer of the  Common  Stock  which has the
greatest aggregate market value;  provided,  however,  that in any such case, if
the  Common  Stock  of  such  Person  is not at  such  time  and  has  not  been
continuously  over the preceding  12-month period registered under Section 12 of
the  Exchange Act and such Person is a direct or indirect  Subsidiary  of one or
more other Persons, then (x) "Principal Party" refers to whichever of such other
Persons has Common Stock that is and has been  continuously  over the  preceding
12-month  period  registered  under  Section 12 of the Exchange  Act; (y) if the
Common  Stocks  of two or more of  such  other  Persons  are  and  have  been so
registered,  "Principal  Party" refers to whichever of such other Persons is the
issuer of the Common Stock which has the greatest aggregate market value; or (z)
if the  Common  Stock of none of such  other  Persons  has  been so  registered,
"Principal  Party"  refers to  whichever  of such other  Persons  (other than an
individual)  is the Person  which has the equity  securities  with the  greatest
aggregate market value. In case such Person is owned, directly or indirectly, by
a joint  venture  formed by two or more Persons that are not owned,  directly or
indirectly,  by the same Person,  the rules set forth above apply to each of the
chains of ownership  having an interest in such joint  venture as if such Person
were a Subsidiary of both or all of such joint venturers and the


                                       -6-


<PAGE>

Principal  Parties in each such chain  shall bear the  obligations  set forth in
Section  13 in the same  ratio as their  direct or  indirect  interests  in such
Person bear to the total of such interests.

         (v) "Purchase Price" with respect to each Right is initially $50.00 per
one one-thousandth of a share of Preferred Stock, shall be subject to adjustment
from time to time as  provided  in  Sections  11 and 13, and shall be payable in
lawful money of the United  States of America in cash or by  certified  check or
bank draft payable to the order of the Company.

         (w) "Record Date" means the Close of Business on July 18, 1997.

         (x) "Redemption  Date" means the time at which the Rights are scheduled
to be redeemed as provided in Section 23.

         (y)  "Redemption  Price" has the meaning  given to such term in Section
23.

         (z) "Regular Trading Activities" means trading activities undertaken in
the  Institutional  Investor's normal course of business and not for the purpose
of exercising, either alone or in concert with any other Person, power to direct
or cause the direction of the management and policies of the Company.

         (aa) "Rights Agent" means American Securities Transfer & Trust, Inc. or
any Co-Rights Agent or Successor  Rights Agent appointed by the Company pursuant
to Section 2.

         (bb) "Securities Act" means the Securities Act of 1933, as amended, and
any successor statute.

         (cc) "Stock Acquisition Date" means the first date (including,  without
limitation,  any such date which is on or after the date of this  Agreement  and
prior to the issuance of the Rights) of public  disclosure  by the  Company,  an
Acquiring Person or otherwise that a Person has become an Acquiring Person.

         (dd)  "Subsidiary"  has the meaning given to such term in Rule 12b-2 of
the General  Rules and  Regulations  under the Exchange Act, as in effect on the
date of this Agreement.

         (ee)  "Tender  Offer  Date"  means the date of  commencement  or public
disclosure  of an  intention to commence  (including  any such  commencement  or
public  disclosure which occurs on or after the date of this Agreement and prior
to the issuance of the Rights) a tender offer or exchange  offer by a Person if,
after acquiring the maximum number of securities  sought pursuant to such offer,
such Person, or any Affiliate or Associate of such Person, would be an Acquiring
Person.

         (ff)  "Triggering  Event"  occurs  when a Person  becomes an  Acquiring
Person.

         Section 2. Appointment of Rights Agent. The Company hereby appoints the
Rights  Agent to act as agent for the Company in  accordance  with the terms and
conditions


                                       -7-


<PAGE>


hereof,  and the Rights Agent hereby accepts such  appointment.  The Company may
from time to time  appoint  such  co-Rights  Agents as it may deem  necessary or
desirable.

         Section 3. Issuance of Rights Certificates.

         (a) Until the  Distribution  Date:  (i) the  Rights  shall be issued in
respect of and shall be evidenced by the certificates representing the shares of
Common  Stock  issued and  outstanding  on the Record  Date and shares of Common
Stock issued or which become  outstanding after the Record Date and prior to the
earliest of the  Distribution  Date, the Redemption  Date, the Exchange Date and
the Expiration Date (which certificates for Common Stock shall be deemed to also
be certificates  evidencing the Rights), and not by separate certificates;  (ii)
the  registered  holders  of such  shares  of  Common  Stock  shall  also be the
registered  holders of the Rights  associated  with such  shares;  and (iii) the
Rights shall be  transferable  only in connection with the transfer of shares of
Common Stock and the surrender for transfer of any  certificate  for such shares
of Common Stock shall also  constitute  the surrender for transfer of the Rights
associated  with the  shares of Common  Stock  represented  thereby.  As soon as
practicable after the Company has notified the Rights Agent of the occurrence of
the  Distribution  Date,  the Company will prepare and execute,  and the Company
will  deliver to the Rights  Agent to be  countersigned,  which the Rights Agent
shall do, and the Rights  Agent shall mail,  by  first-class,  insured,  postage
prepaid  mail,  to each  record  holder of the  Common  Stock as of the Close of
Business on the  Distribution  Date, as shown by the records of the Company,  at
the  address of such  holder  shown on such  records,  one or more  certificates
evidencing the Rights  ("Rights  Certificates"),  in  substantially  the form of
Exhibit B hereto,  evidencing  one Right (as adjusted from time to time pursuant
to this  Agreement)  for each share of Common Stock so held.  From and after the
Distribution   Date,  the  Rights  will  be  evidenced  solely  by  such  Rights
Certificates.  In the event that an adjustment in the number of Rights per share
of  Common  Stock  has been  made  pursuant  to  Section  11(o),  at the time of
distribution of the Rights Certificates,  the Company may make the necessary and
appropriate  adjustments  (in  accordance  with  Section  14(a)) so that  Rights
Certificates  representing only whole numbers of Rights are distributed and cash
is paid in lieu of any fractional Rights.

         (b) On the  Record  Date,  or as soon as  practicable  thereafter,  the
Company will send a copy of a Summary of Rights to Purchase  Preferred Stock, in
substantially  the form of  Exhibit  C hereto  (the  "Summary  of  Rights"),  by
first-class,  postage-prepaid  mail, to each record holder of Common Stock as of
the close of business on the Record Date (other than any Acquiring Person or any
Associate or Affiliate of any Acquiring  Person),  at the address of such holder
shown on the records of the  Company.  With respect to  certificates  for Common
Stock outstanding as of the Record Date, until the Distribution Date, the Rights
will be evidenced by such  certificates  registered  in the names of the holders
thereof together with the Summary of Rights. Until the Distribution Date (or the
earlier of the  Redemption  Date and the  Expiration  Date),  the  surrender for
transfer of any  certificate  for Common Stock  outstanding  on the Record Date,
with or  without a copy of the  Summary of Rights,  shall  also  constitute  the
transfer of the Rights associated with the Common Stock represented thereby.

         (c) Rights  shall be issued in  respect  of all shares of Common  Stock
which are issued or sold by the  Company  after the Record Date but prior to the
earliest of the Distribution


                                       -8-


<PAGE>

Date,  the  Redemption  Date,  the  Exchange  Date or the  Expiration  Date.  In
addition, in connection with the issuance or sale of Common Stock by the Company
following  the  Distribution  Date and prior to the  earliest of the  Redemption
Date, the Exchange Date or the Expiration Date, the Company shall,  with respect
to Common Stock so issued or sold  pursuant to (i) the exercise of stock options
issued prior to the Distribution  Date or under any employee plan or arrangement
created prior to the Distribution Date, or (ii) upon the exercise, conversion or
exchange of  securities  issued by the Company prior to the  Distribution  Date,
issue Rights and Rights  Certificates  representing  the  appropriate  number of
Rights in connection with such issuance or sale; provided,  however, that (x) no
such Rights and Rights  Certificates shall be issued if, and to the extent that,
the  Company  shall be advised  by counsel  that such  issuance  would  create a
significant  risk of  material  adverse tax  consequences  to the Company or the
Person to whom such Rights  Certificates would be issued; and (y) no such Rights
and Rights Certificates shall be issued, if, and to the extent that, appropriate
adjustment  shall  otherwise  have  been made in lieu of the  issuance  thereof.
Certificates  issued after the Record Date  representing  shares of Common Stock
outstanding on the Record Date or shares of Common Stock issued after the Record
Date but prior to the earliest of the  Distribution  Date, the Redemption  Date,
the Exchange Date and the  Expiration  Date shall have  impressed,  printed,  or
written on, or otherwise affixed to them a legend substantially in the following
form:

                  This certificate also evidences and entitles the holder hereof
         to  certain  Rights  as set  forth in a Rights  Agreement  between  3-D
         Geophysical,  Inc. and American  Securities  Transfer & Trust, Inc., as
         Rights Agent, dated as of July 17, 1997 (the "Rights  Agreement"),  the
         terms of which are hereby  incorporated  herein by reference and a copy
         of  which  is on  file  at  the  principal  executive  offices  of  3-D
         Geophysical,  Inc.  Under  certain  circumstances,  as set forth in the
         Rights   Agreement,   such  Rights  will  be   evidenced   by  separate
         certificates and will no longer be evidenced by this  certificate.  3-D
         Geophysical, Inc. will mail to the holder of this certificate a copy of
         the Rights Agreement  without charge after receipt of a written request
         therefor.  Under  certain  circumstances,  as set  forth in the  Rights
         Agreement,  Rights  that  were,  are or  become  beneficially  owned by
         Acquiring  Persons or their Associates or Affiliates (as such terms are
         defined  in the  Rights  Agreement)  may  become  null and void and the
         holder of any of such Rights  (including any  subsequent  holder) shall
         not have any right to exercise such Rights.

         Section 4. Form of Rights Certificates.

         (a) The  Rights  Certificates  (and the form of  election  to  purchase
shares and form of assignment to be printed on the reverse  thereof) shall be in
substantially  the  form  of  Exhibit  B  hereto  and may  have  such  marks  of
identification  or  designation  and such  legends,  summaries  or  endorsements
printed thereon as the Company may deem  appropriate and as are not inconsistent
with the provisions of this Agreement,  or as may be required to comply with any
law or with any rule or  regulation  made  pursuant  thereto or with any rule or
regulation  of any stock  exchange  on which the Rights may from time to time be
listed or any securities  association on whose interdealer  quotation system the
Rights  may be from time to time  authorized  for  quotation,  or to  conform to
usage. Subject to the provisions of this Agreement,


                                       -9-


<PAGE>

the Rights Certificates,  whenever issued, shall be dated as of the Distribution
Date,  and on their face shall  entitle  the holders  thereof to  purchase  such
number  of  shares  of  Preferred  Stock as shall be set  forth  therein  at the
Purchase Price set forth therein, but the number and kind of such securities and
the Purchase Price shall be subject to adjustment as provided in this Agreement.

         (b)  Notwithstanding  any other  provision of this  Agreement,  (i) any
Rights  Certificate  issued  pursuant to this Agreement that  represents  Rights
beneficially  owned or formerly  beneficially  owned, on or after the earlier of
the Distribution  Date and the Stock  Acquisition Date, by a Person known by the
Company  to be: (A) an  Acquiring  Person or an  Associate  or  Affiliate  of an
Acquiring Person; (B) a direct or indirect transferee of an Acquiring Person (or
of an Associate or  Affiliate of such  Acquiring  Person) who becomes or becomes
entitled to be a transferee  after the Acquiring  Person  becomes such; or (C) a
direct or indirect  transferee  of an  Acquiring  Person (or of an  Associate or
Affiliate  of such  Acquiring  Person) who  becomes or becomes  entitled to be a
transferee prior to or concurrently  with the Acquiring Person becoming such and
receives  such  Rights  pursuant  to either  (x) a direct or  indirect  transfer
(whether  or not for  consideration)  from  the  Acquiring  Person  (or  from an
Associate or Affiliate of such Acquiring  Person) to holders of equity interests
in such Acquiring  Person (or to holders of equity  interests in an Associate or
Affiliate of such  Acquiring  Person) or to any Person with whom such  Acquiring
Person  (or an  Associate  or  Affiliate  of  such  Acquiring  Person)  has  any
continuing  agreement,  arrangement or  understanding  regarding the transferred
Rights,  or (y) a direct or indirect  transfer  which a majority of the Board of
Directors has determined is part of a plan,  arrangement or understanding  which
has as a primary  purpose or effect the  avoidance of Section  7(e); or (ii) any
Rights  Certificate  issued pursuant to this Agreement upon transfer,  exchange,
replacement or adjustment of any other Rights Certificate  beneficially owned by
a  Person  referred  to in this  Section  4(b),  shall  contain  (to the  extent
feasible) the following legend:

                  The Rights  represented by this Rights Certificate are or were
         beneficially owned by a Person who was or became an Acquiring Person or
         an Affiliate  or  Associate  of an Acquiring  Person (as such terms are
         defined in the Rights Agreement).  Accordingly, this Rights Certificate
         and the  Rights  represented  hereby  may  become  null and void in the
         circumstances specified in Section 7(e) of the Rights Agreement.

         Section 5. Execution, Countersignature and Registration.

         (a) Each Rights  Certificate shall be executed on behalf of the Company
by the  Company's  Chairman,  Chief  Executive  Officer,  President  or any Vice
President,  either  manually or by facsimile  signature,  and shall have affixed
thereto the Company's seal or a facsimile thereof which shall be attested by the
Company's Secretary or an Assistant  Secretary,  either manually or by facsimile
signature.  Each Rights  Certificate  shall be countersigned by the Rights Agent
either  manually or, if permitted by the  Company,  by facsimile  signature  and
shall not be valid for any purpose unless so countersigned.  In case any officer
of the Company who shall have signed a Rights Certificate shall cease to be such
officer of the Company before  countersignature by the Rights Agent and issuance
and  delivery  by the  Company,  such  Rights  Certificate  nevertheless  may be
countersigned  by the Rights Agent and issued and delivered  with the same force
and effect as though the Person who signed such Rights Certificate had not


                                      -10-


<PAGE>

ceased to be such  officer of the  Company;  and any Rights  Certificate  may be
signed on behalf of the  Company by any Person  who,  at the actual  date of the
execution of such Rights  Certificate,  shall be a proper officer of the Company
to sign such Rights  Certificate,  although at the date of the execution of this
Agreement any such Person was not such an officer.

         (b) Following  the  Distribution  Date,  the Rights Agent shall keep or
cause  to  be  kept,  at  its  principal  corporate  trust  office,   books  for
registration  and transfer of the Rights  Certificates  issued  hereunder.  Such
books shall show the names and addresses of the respective holders of the Rights
Certificates, the number of Rights evidenced by each Rights Certificate, and the
certificate number and the date of issuance of each Rights Certificate.

         Section 6.  Transfer,  Division,  Combination  and  Exchange  of Rights
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.

         (a)  Subject to the  provisions  of  Section  14, at any time after the
Close of  Business  on the  Distribution  Date  and at or prior to the  Close of
Business on the  earliest  of the  Redemption  Date,  the  Exchange  Date or the
Expiration  Date,  any  Rights   Certificate  or  Rights   Certificates  may  be
transferred,  divided,  combined or exchanged for another Rights  Certificate or
Rights  Certificates,  entitling the registered holder to purchase a like number
of shares of Preferred  Stock (or,  following a  Triggering  Event or a Business
Combination,  other securities,  cash or other property,  as the case may be) as
the Rights  Certificate or Rights  Certificates  surrendered  then entitled such
holder to purchase. Any registered holder desiring to transfer,  divide, combine
or exchange any Rights  Certificate shall make such request in writing delivered
to the  Rights  Agent,  and shall  surrender  the Rights  Certificate  or Rights
Certificates to be transferred,  divided, combined or exchanged at the principal
corporate  office  of  the  Rights  Agent.  Thereupon  the  Rights  Agent  shall
countersign and deliver to the Person entitled  thereto a Rights  Certificate or
Rights Certificates, as the case may be, as so requested. As a condition to such
transfer, division,  combination or exchange, the Company may require payment by
the  surrendering  holder of a sum  sufficient to cover any tax or  governmental
charge that may be imposed in connection therewith. Neither the Rights Agent nor
the Company shall be obligated to take any action whatsoever with respect to the
transfer of any such surrendered  Rights Certificate until the registered holder
shall have duly  completed  and executed the form of  assignment  on the reverse
side of such Rights Certificate and shall have provided such additional evidence
of the identity of the Beneficial  Owner (or such former or proposed  Beneficial
Owner)  thereof or such  Beneficial  Owner's  Affiliates  or  Associates  as the
Company shall reasonably request.

         (b) Upon  receipt  by the  Company  and the  Rights  Agent of  evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation of
a Rights Certificate,  and, in case of loss, theft or destruction,  of indemnity
or security  reasonably  satisfactory to them, and  reimbursement to the Company
and the Rights Agent of all reasonable  expenses  incidental  thereto,  and upon
surrender  to the Rights Agent and  cancellation  of the Rights  Certificate  if
mutilated,  the Company will make and deliver a new Rights  Certificate  of like
tenor to the Rights Agent for  countersignature by the Rights Agent and delivery
to the  registered  owner in lieu of the  Rights  Certificate  so lost,  stolen,
destroyed or mutilated.


                                      -11-


<PAGE>

         Section 7.  Exercise  of Rights;  Purchase  Price;  Expiration  Date of
Rights.

         (a) Each Right  shall  entitle  (except as  otherwise  provided in this
Agreement) the registered holder thereof,  upon the exercise thereof as provided
in this  Agreement,  to purchase,  for the Purchase Price, at any time after the
Distribution Date and prior to the earliest of the Expiration Date, the Exchange
Date or the Redemption Date, one one-thousandth (1/1000) of a share of Preferred
Stock  (or,  following  a  Triggering  Event or a  Business  Combination,  other
securities,  cash or other  assets,  as the case may be),  subject to adjustment
from time to time as provided in Sections 11 and 13.

         (b) The registered  holder of any Rights  Certificate  may exercise the
Rights  evidenced  thereby  (except as otherwise  provided in this Agreement) in
whole or in part  (except that no fraction of a Right may be  exercised)  at any
time after the  Distribution  Date and prior to the  earliest of the  Expiration
Date,  the Exchange  Date or the  Redemption  Date, by  surrendering  the Rights
Certificate,  with the form of election to purchase on the reverse  side thereof
duly executed,  to the Rights Agent at the principal  corporate  trust office of
the Rights  Agent,  together  with  payment of the  Purchase  Price for each one
one-thousandth  of a share of Preferred Stock (or,  following a Triggering Event
or a Business Combination,  other securities,  cash or other assets, as the case
may be) as to which the Rights are exercised.

         (c) Upon  receipt  of a  Rights  Certificate  representing  exercisable
Rights,  with the form of election to purchase  duly  executed,  accompanied  by
payment  of the  Purchase  Price  for  each  one  one-thousandth  of a share  of
Preferred  Stock (or,  following a Triggering  Event or a Business  Combination,
other securities,  cash or other assets, as the case may be) to be purchased and
an amount in cash,  certified  bank check or bank draft  payable to the order of
the Company  equal to any  applicable  transfer  tax  required to be paid by the
surrendering holder pursuant to Section 9(d), the Rights Agent shall, subject to
the provisions of this Agreement, thereupon promptly (i)(A) requisition from any
transfer agent for the Preferred Stock (or make  available,  if the Rights Agent
is the transfer agent for the Preferred Stock) certificates for the total number
of one  one-thousandths  of a share of Preferred  Stock to be purchased (and the
Company hereby irrevocably authorizes its transfer agent to comply with all such
requests),  or (B) if the Company shall have elected to deposit the total number
of shares of  Preferred  Stock  issuable  upon  exercise  of the  Rights  with a
depositary  agent,  requisition from the depositary  agent  depositary  receipts
representing such number of one one-thousandths of a share of Preferred Stock as
are to be  purchased  (in  which  case  certificates  for  the  Preferred  Stock
represented  by such receipts  shall be deposited by the transfer agent with the
depositary  agent) and the Company shall direct the  depositary  agent to comply
with such  request;  (ii)  after  receipt  of such  certificates  or  depositary
receipts,  cause the same to be delivered to or upon the order of the registered
holder of such Rights  Certificate,  registered  in such name or names as may be
designated  by such  holder;  and  (iii) if  appropriate,  requisition  from the
Company the amount of cash to be paid in lieu of issuance of  fractional  shares
in accordance  with Section 14 and,  promptly after receipt  thereof,  cause the
same to be  delivered  to or upon the  order of the  registered  holder  of such
Rights  Certificate.  In the event that the Company is  obligated to issue other
securities  (including  shares of Common Stock) of the Company,  pay cash and/or
distribute other property pursuant to this Agreement,  the Company will make all
arrangements necessary


                                      -12-


<PAGE>

so that such other  securities,  cash and/or other  property are  available  for
distribution by the Rights Agent, if and when appropriate.

         (d) In case the  registered  holder  of any  Rights  Certificate  shall
exercise less than all the Rights evidenced  thereby,  a new Rights  Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the  Rights  Agent and  delivered  to, or upon the order of,  the  registered
holder of such Rights Certificate or to his duly authorized assigns,  subject to
the provisions of Section 6 and Section 14.

         (e)  Notwithstanding  anything in this  Agreement to the contrary,  any
Rights that are or were formerly  beneficially  owned on or after the earlier of
the Distribution  Date and the Stock Acquisition Date by (i) an Acquiring Person
or any Associate or Affiliate of an Acquiring Person;  (ii) a direct or indirect
transferee  of an  Acquiring  Person (or of an  Associate  or  Affiliate of such
Acquiring  Person) who becomes or becomes  entitled to be a transferee after the
Acquiring  Person  becomes such; or (iii) a direct or indirect  transferee of an
Acquiring Person (or of an Associate or Affiliate of such Acquiring  Person) who
becomes or becomes entitled to be a transferee prior to or concurrently with the
Acquiring Person becoming such and receives such Rights pursuant to either (A) a
direct  or  indirect  transfer  (whether  or not  for  consideration)  from  the
Acquiring Person (or from an Associate or Affiliate of such Acquiring Person) to
holders of equity  interests in such  Acquiring  Person (or to holders of equity
interests in any  Associate or  Affiliate  of such  Acquiring  Person) or to any
Person with whom the  Acquiring  Person (or an  Associate  or  Affiliate of such
Acquiring  Person) has any continuing  agreement,  arrangement or  understanding
regarding the transferred  Rights,  or (B) a direct or indirect transfer which a
majority of the Board of Directors determines is part of a plan,  arrangement or
understanding  which has as a primary  purpose or effect the  avoidance  of this
Section 7(e),  shall,  immediately upon the occurrence of a Triggering Event and
without any further action,  be null and void and no holder of such Rights shall
have any rights  whatsoever  with  respect  to such  Rights  whether  under this
Agreement or otherwise;  provided,  however,  that,  in the case of  transferees
described  in clause  (ii) or clause  (iii) of this  Section  7(e),  any  Rights
beneficially  owned by such transferee shall be null and void only if and to the
extent such Rights were formerly  beneficially owned by a Person who was, at the
time such  Person  beneficially  owned  such  Rights,  or who later  became,  an
Acquiring  Person or an Affiliate or Associate  of such  Acquiring  Person.  The
Company shall use all  reasonable  efforts to ensure that the provisions of this
Section 7(e) and Section 4(b) are complied  with, but shall have no liability to
any  holder of a Rights  Certificate  or to any other  Person as a result of the
Company's failure to make, or any delay in making (including any such failure or
delay  by the  Board  of  Directors),  any  determinations  with  respect  to an
Acquiring Person or its Affiliates, Associates or transferees under this Section
7(e) or any other provision of this Agreement.

         (f) Notwithstanding anything in this Agreement to the contrary, neither
the Rights Agent nor the Company shall be obligated to undertake any action with
respect to the registered holder of a Rights  Certificate upon the occurrence of
any  purported  exercise as set forth in this  Section 7 unless such  registered
holder shall have (i) completed and signed the certificate contained in the form
of election to purchase set forth on the reverse side of the Rights  Certificate
surrendered for such exercise, and (ii) provided such additional evidence of the
identity  of the  Beneficial  Owner (or  former or  proposed  Beneficial  Owner)
thereof or the


                                      -13-


<PAGE>

Affiliates  or  Associates  of such  Beneficial  Owner (or  former  or  proposed
Beneficial Owner) as the Company shall reasonably request.

         Section 8.  Cancellation  and Destruction of Rights  Certificates.  All
Rights Certificates surrendered for the purpose of exercise, transfer, division,
combination  or exchange  shall,  if surrendered to the Company or to any of its
agents,  be delivered to the Rights Agent for  cancellation or in canceled form,
or, if surrendered  to the Rights Agent,  shall be canceled by it, and no Rights
Certificates  shall be issued in lieu therefor except as expressly  permitted by
the provisions of this Agreement.  The Company shall deliver to the Rights Agent
for  cancellation  and  retirement,  and the  Rights  Agent  shall so cancel and
retire,  any other  Rights  Certificate  purchased  or  acquired  by the Company
otherwise  than upon the exercise  thereof.  The Rights Agent shall  deliver all
canceled Rights Certificates to the Company, or shall, at the written request of
the Company,  destroy such canceled Rights Certificates,  and in such case shall
deliver a certificate of destruction thereof to the Company.

         Section 9. Reservation and Availability of Preferred Stock.

         (a) The Company  covenants and agrees that it will cause to be reserved
and kept  available at all times out of its  authorized  and unissued  shares of
Preferred  Stock or its authorized and issued shares of Preferred  Stock held in
its treasury (and,  following the occurrence of a Triggering Event or a Business
Combination,  out of its authorized  and unissued  shares of Common Stock and/or
other  securities  or out of its  authorized  and issued  shares of Common Stock
and/or other securities held in its treasury) free from preemptive rights or any
right of first refusal,  a sufficient  number of shares of Preferred Stock (and,
following the occurrence of a Triggering Event or a Business Combination, shares
of Common Stock and/or other  securities)  to permit the exercise in full of all
Rights from time to time outstanding.

         (b) The Company further  covenants and agrees, so long as the Preferred
Stock  (and,  following  the  occurrence  of a  Triggering  Event or a  Business
Combination,  shares of Common Stock and/or other securities)  issuable upon the
exercise  of Rights  may be  listed on any  United  States  national  securities
exchange or quoted on any automated quotation system, to use its best efforts to
cause,  from and after the time that the  Rights  become  exercisable,  all such
shares and/or other  securities  reserved for such issuance to be listed on such
exchange or quoted on such automated  quotation  system upon official  notice of
issuance upon such exercise.

         (c) The Company further covenants and agrees that it will take all such
action as may be necessary  to ensure that all shares of  Preferred  Stock (and,
following the occurrence of a Triggering Event or a Business Combination, shares
of Common Stock and/or other  securities)  delivered upon the exercise of Rights
shall, at the time of delivery of the  certificates  for such shares and/or such
other securities (subject to payment of the Purchase Price), be duly and validly
authorized and issued, fully paid, nonassessable,  freely tradeable, not subject
to liens or encumbrances, and free of preemptive rights, rights of first refusal
or any other  restrictions or limitations on the transfer or ownership  thereof,
of any kind or nature whatsoever.

         (d) The Company further  covenants and agrees that it will pay when due
and payable any and all federal and state  transfer  taxes and charges which may
be payable in respect


                                      -14-


<PAGE>

of the  original  issuance  or  delivery  of the Rights  Certificates  or of any
certificates  for  shares of  Preferred  Stock (or  Common  Stock  and/or  other
securities,  as the case may be) upon the exercise of Rights.  The Company shall
not,  however,  be required to (i) pay any  transfer tax which may be payable in
respect of any  transfer  involved  in the  issuance  or  delivery of any Rights
Certificates  or the  issuance  or delivery  of any  certificates  for shares of
Preferred Stock (or Common Stock and/or other  securities as the case may be) to
a Person other than, or in a name other than that of, the  registered  holder of
the Rights  Certificate  evidencing  Rights  surrendered  for exercise;  or (ii)
transfer or deliver any Rights  Certificate or issue or deliver any certificates
for shares of Preferred  Stock (or Common Stock and/or other  securities  as the
case may be) upon the  exercise of any Rights until any such tax shall have been
paid (any such tax being payable by the holder of such Rights Certificate at the
time  of  surrender)  or  until  it  has  been   established  to  the  Company's
satisfaction that no such tax is due.

         (e) The Company  shall use its best efforts (i) as soon as  practicable
following a Triggering Event (provided the  consideration to be delivered by the
Company  upon  exercise of the Rights has been  determined  in  accordance  with
Section 11(a)(iii)), or as soon as is required by law following the Distribution
Date,  as the case may be, to prepare and file a  registration  statement  on an
appropriate  form  under  the  Securities  Act with  respect  to the  securities
purchasable  upon  exercise  of the  Rights;  (ii) to  cause  such  registration
statement to become  effective  as soon as  practicable  after such filing;  and
(iii)  to  cause  such  registration  statement  to  remain  effective  (with  a
prospectus at all times meeting the  requirements  of the Securities  Act) until
the  earlier of (A) the date as of which  Rights are no longer  exercisable  for
such securities or (B) the Expiration  Date. The Company shall also use its best
efforts to take such action as may be  necessary  or  appropriate  under,  or to
ensure  compliance with, the securities or "blue sky" laws of the various states
in  connection  with the  exercise  of the Rights.  The Company may  temporarily
suspend,  for a  period  of time  not to  exceed  90 days  after  the  date of a
Triggering Event, the  exercisability of the Rights in order to prepare and file
such  registration  statement and permit it to become  effective.  Upon any such
suspension,  the  Company  shall  make a public  announcement  stating  that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement   at  such  time  as  the   suspension  is  no  longer  in  effect.
Notwithstanding  any  provision of this  Agreement to the  contrary,  the Rights
shall not be exercisable in any jurisdiction unless the requisite  qualification
in such jurisdiction shall have been obtained and until a registration statement
has been declared effective under the Securities Act.

         Section 10.  Preferred Stock Record Date. Each Person in whose name any
certificate  for  shares  of  Preferred  Stock (or  Common  Stock  and/or  other
securities,  as the case may be) is issued upon the exercise of Rights shall for
all  purposes  be deemed to have  become the  holder of record of the  Preferred
Stock (or Common Stock and/or other securities,  as the case may be) represented
thereby on, and such certificate  shall be dated, the date upon which the Rights
Certificate  evidencing  such  Rights was duly  surrendered  and  payment of the
Purchase Price (and any applicable transfer taxes) was made; provided,  however,
that if the  date  of such  surrender  and  payment  is a date  upon  which  the
Preferred  Stock (or Common Stock and/or other  securities,  as the case may be)
transfer  books of the Company are closed,  such Person  shall be deemed to have
become the record  holder of such  shares (or  Common  Stock  and/or  such other
securities,  as the case may be) on, and such  certificate  shall be dated,  the
next succeeding


                                      -15-


<PAGE>

Business  Day on which  the  Preferred  Stock  (or  Common  Stock  and/or  other
securities, as the case may be) transfer books of the Company are open.

         Section 11.  Adjustments to Purchase Price,  Number of Shares or Number
of Rights. The Purchase Price, the number and kind of securities, cash and other
property  obtainable  upon  exercise  of each  Right  and the  number  of Rights
outstanding shall be subject to adjustment from time to time as provided in this
Section 11.

         (a) (i) In the event the Company shall at any time on or after the date
of this  Agreement  (A) pay a dividend or make a  distribution  on the Preferred
Stock payable in shares of Preferred  Stock,  (B) subdivide (by a stock split or
otherwise) the outstanding  Preferred Stock into a larger number of shares,  (C)
combine (by a reverse stock split or otherwise) the outstanding  Preferred Stock
into  a  smaller   number  of  shares,   or  (D)  issue  any   securities  in  a
reclassification of the Preferred Stock (including any such  reclassification in
connection with a consolidation  or merger in which the Company is the surviving
corporation),  then in each such  event the  Purchase  Price and the  Redemption
Price set forth in  Section  23, as each is in effect at the time of the  record
date  for  such  dividend  or  distribution,  or of the  effective  date of such
subdivision, combination or reclassification,  shall be proportionately adjusted
by multiplying  the Purchase Price and such  Redemption  Price by a fraction the
numerator  of which  shall be the total  number of  shares  of  Preferred  Stock
outstanding   immediately  prior  to  the  occurrence  of  such  event  and  the
denominator  of which  shall be the total  number of shares of  Preferred  Stock
outstanding  immediately  following the  occurrence  of such event.  If an event
occurs which would  require an adjustment  under both this Section  11(a)(i) and
Section 11(a)(ii), the adjustment provided for in this Section 11(a)(i) shall be
in addition to, and shall be made prior to, any adjustment  required pursuant to
Section 11(a)(ii).

            (ii)  Upon  the  first  occurrence  of a  Triggering  Event,  proper
provision  shall be made so that  each  holder of a Right,  except as  otherwise
provided in this Agreement,  shall thereafter have the right to receive, and the
Company shall issue,  upon exercise thereof at the  then-current  Purchase Price
required to be paid in order to exercise a Right in accordance with the terms of
this  Agreement,  in lieu of the  number  of one  one-thousandths  of a share of
Preferred Stock or other securities receivable upon exercise of a Right prior to
the occurrence of the Triggering Event, such number of shares of Common Stock of
the  Company  as  shall  equal  the  result  obtained  by  (x)  multiplying  the
then-current  Purchase  Price by the  number  of  one-thousandths  of a share of
Preferred  Stock or other  securities  for  which a Right  was then  exercisable
(without giving effect to such  Triggering  Event) and (y) dividing that product
by 50% of the Current  Market Price per share of Common Stock on the date of the
occurrence of the  Triggering  Event (such number of shares being referred to as
the "Adjustment  Shares");  provided,  however, that if the transaction or event
that would  otherwise  give rise to the foregoing  adjustment is also subject to
the provisions of Section 13, then only the provisions of Section 13 shall apply
and no  adjustment  shall be made pursuant to this Section  11(a)(ii).  Upon the
occurrence of such Triggering  Event,  the Purchase Price required to be paid in
order to exercise a Right shall be  unchanged,  and the Purchase  Price shall be
appropriately  adjusted  to  reflect,  and shall  thereafter  mean,  the  amount
required to be paid per share of Common Stock upon exercise of a Right.


                                      -16-


<PAGE>

            (iii) In lieu of issuing  shares of Common Stock in accordance  with
Section  11(a)(ii),  the Company  may,  if a majority of the Board of  Directors
determines  that such action is necessary or appropriate and not contrary to the
interests of holders of Rights  (and,  in the event that the number of shares of
Common Stock which are authorized by the Company's certificate of incorporation,
but which are not  outstanding  or reserved for issuance for purposes other than
upon exercise of the Rights,  are not  sufficient to permit the exercise in full
of the Rights in accordance with Section 11(a)(ii),  the Company shall) take one
or more of the  following  actions:  (A)  reduce  (but in no event less than the
Current  Market Price per share of Common Stock) the Purchase  Price required to
be paid in order to exercise a Right by any amount (the "Reduction Amount"),  in
which event the number of Adjustment  Shares and/or the amount of any Substitute
Consideration  (as hereinafter  defined)  issuable in respect of each Right (the
Adjustment Shares, if any, and the Substitute Consideration, if any, issuable in
respect  of  a  Right  are  herein  collectively   referred  to  as  the  "Total
Consideration")  shall be  reduced  so that  the  aggregate  value of the  Total
Consideration  issuable in respect of each Right is equal to the  Current  Value
(as  hereinafter  defined)  less the  Reduction  Amount  (such  difference,  the
"Adjusted  Current Value");  and/or (B) make adequate  provision with respect to
each Right to  substitute  for all or part of the  Adjustment  Shares  otherwise
obtainable  upon exercise of a Right:  (1) cash, (2) other equity  securities of
the Company  (including,  without  limitation,  shares,  or units of shares,  of
preferred  stock  which a majority  of the Board of  Directors  have  determined
(which determination shall be final, binding and conclusive for all purposes) to
have the same value as shares of Common Stock (such shares or units of preferred
stock being referred to as "Common Stock Equivalents")),  (3) debt securities of
the  Company,  (4)  other  assets,  or (5)  any  combination  of  the  foregoing
(collectively, "Substitute Consideration") having an aggregate value which, when
added to the value of the  Adjustment  Shares  (if any) in  respect  of which no
substitution  is being  made,  is  equal to the  Adjusted  Current  Value.  If a
majority  of the Board of  Directors  determines  to issue or deliver any equity
securities  (other  than  Common  Stock  or  Common  Stock  Equivalents),   debt
securities and/or other assets pursuant to this Section 11(a)(iii), the value of
such securities  and/or assets shall be determined by a majority of the Board of
Directors based upon the advice of a nationally  recognized  investment  banking
firm selected by a majority of the Board of Directors (which determination shall
be final,  binding and conclusive for all purposes).  If the Company is required
to make adequate  provision to deliver value  pursuant to the first  sentence of
this  Section  11(a)(iii)  and the  Company  shall not have  made such  adequate
provision  to  deliver  value  within  ninety  (90)  days  following  the  first
occurrence   of  a   Triggering   Event  (the   "Substitution   Period"),   then
notwithstanding any provision of Section 11(a)(ii) or this Section 11(a)(iii) to
the contrary,  the Company shall be obligated to deliver, upon the surrender for
exercise of a Right and without requiring payment of the Purchase Price,  shares
of Common Stock (to the extent  available) and then, if necessary,  cash,  which
shares  and/or cash have an  aggregate  value equal to the excess of the Current
Value over the Purchase Price. If both Common Stock and cash are to be delivered
pursuant to the preceding sentence,  amounts of both Common Stock and cash shall
be  delivered  upon  surrender  of each Right in a ratio of Common Stock to cash
that bears the same ratio as the total value of all Common Stock to be delivered
(as determined  pursuant to this Section 11(a)(iii)) bears to the total value of
all cash to be delivered;  provided,  however,  that the Company may adjust such
ratio to avoid  issuing  any  fractional  shares of Common  Stock so long as the
method of adjustment is applied  consistently  to each holder of Rights entitled
to receive value thereon pursuant to this Section 11(a)(iii). To the extent that
the Company determines that some action


                                      -17-


<PAGE>

is to be taken  pursuant to the first  and/or  third  sentences  of this Section
11(a)(iii),  the Company (x) shall provide, subject to Section 7(e) hereof, that
such action shall apply uniformly to all outstanding Rights, and (y) may suspend
the  exercisability  of the  Rights  but in no  event to a time  later  than the
expiration of the Substitution Period. In the event of any such suspension,  the
Company shall issue a public announcement stating that the exercisability of the
Rights has been temporarily suspended,  as well as a public announcement at such
time as the suspension is no longer in effect. Upon any change in the Adjustment
Shares obtainable upon exercise of a Right pursuant to this Section  11(a)(iii),
the Purchase Price shall thereafter mean the amount, if any, required to be paid
upon exercise of a Right for the Adjustment  Shares,  if any, and the Substitute
Consideration,  if any, then issuable or  deliverable  upon exercise of a Right,
and a majority of the Board of Directors shall make any necessary  provisions to
ensure  that  the  provisions  of  Section  11(e)  shall   thereafter  apply  as
appropriate to the Total Consideration. For purposes of this Section 11(a)(iii),
(A) "Current  Value" shall be the product  derived by multiplying (x) the number
of Adjustment  Shares issuable in respect of each Right determined under Section
11(a)(ii), by (y) the Current Market Price per share of Common Stock on the date
of the  Triggering  Event;  and (B) the value of each share of Common  Stock and
each share or unit of any "Common Stock Equivalent" shall be deemed conclusively
to be equal to the  Current  Market  Price per share of the Common  Stock on the
date of the Triggering Event.

            (iv) A majority of the Board of Directors may, at its option, at any
time and from time to time after the first  occurrence  of a  Triggering  Event,
cause the  Company  to  exchange,  for all or part of the  then-outstanding  and
exercisable  Rights  (which  shall not  include  Rights  that have  become  void
pursuant to the  provisions of Section  7(e)),  shares of Common Stock or Common
Stock  Equivalents  at an exchange ratio of one share of Common Stock per Right,
appropriately  adjusted to reflect any stock  split,  stock  dividend or similar
transaction  occurring  after the date of this  Agreement  (such  exchange ratio
being  hereinafter  referred to as the "Exchange  Ratio").  Any partial exchange
shall be effected on a pro rata basis based on the number of Rights  (other than
Rights which have become void  pursuant to the  provisions of Section 7(e)) held
by each holder of Rights.

         Immediately  upon the  action of a majority  of the Board of  Directors
ordering  the  exchange of any Rights  pursuant to this  Section  11(a)(iv)  and
without any further  action and without any notice,  the right to exercise  such
Rights shall terminate and the only right  thereafter of a holder of such Rights
shall be to receive that number of shares of Common  Stock  and/or  Common Stock
Equivalents equal to the number of such Rights held by such holder multiplied by
the Exchange  Ratio.  The Company shall  promptly give public notice of any such
exchange and, in addition,  the Company shall promptly mail a notice of any such
exchange  to all of the holders of such Rights in  accordance  with  Section 25;
provided,  however,  that the failure to give, any delay in giving or any defect
in, such notice shall not affect the validity of such exchange. Each such notice
of exchange  will state the method by which the  exchange of the Common Stock or
Common Stock  Equivalents  for Rights will be effected  and, in the event of any
partial  exchange,  the number of Rights which will be  exchanged.  In the event
that  the  number  of  shares  of  Common  Stock  which  is  authorized  but not
outstanding  or reserved for issuance for a purpose  other than  exercise of the
Rights is not  sufficient  to permit any exchange of Rights as  contemplated  in
accordance  with this Section  11(a)(iv),  the Board of Directors shall take all
such action within its power as may be necessary to authorize  additional shares
of


                                      -18-


<PAGE>

Common Stock for issuance upon exchange of the Rights.  The Company shall not be
required  to  issue  fractions  of  shares  of  Common  Stock  or  Common  Stock
Equivalents or to distribute  certificates  which evidence  fractional shares of
Common Stock or Common Stock  Equivalents.  In lieu of such fractional shares of
Common  Stock  or  Common  Stock  Equivalents,  the  Company  shall  pay  to the
registered  holders  of the  Rights  Certificates  with  regard  to  which  such
fractional shares of Common Stock or Common Stock Equivalents would otherwise be
issuable an amount in cash equal to the product  derived by multiplying  (x) the
subject  fraction,  by (y) the last sale price of the Common  Stock on the fifth
Trading Day  following the public  announcement  of the exchange by the Company,
or, in case no such sale takes place on such day, the average of the closing bid
and asked prices on such day, in either case on a when issued basis (taking into
account the  exchange),  as reported in the principal  consolidated  transaction
reporting system with respect to securities listed or admitted to trading on the
Nasdaq  National  Market (or, if the Company's  Common Stock is not so listed or
traded,  then as  determined  in the manner  provided  under the  definition  of
"Current  Market Price,"  adjusted to take into account the  exchange).  For the
purposes of this Section 11(a)(iv),  the value of any Common Stock Equivalent on
any date  shall be the same as the  value of the  Common  Stock,  as  determined
pursuant to the previous sentence, on such date.

         (b) If the  Company  shall  at any  time on or  after  the date of this
Agreement  fix a record date for the issuance of rights,  options or warrants to
holders of Preferred Stock entitling them to subscribe for or purchase Preferred
Stock or Equivalent  Shares (or securities  convertible into or exchangeable for
Preferred Stock or Equivalent Shares) at a price per share of Preferred Stock or
Equivalent  Shares (or, in the case of a convertible or  exchangeable  security,
having a conversion or exchange price per share of Preferred Stock or Equivalent
Shares) less than the Current Market Price per share of Preferred  Stock on such
record date,  the Purchase Price to be in effect after such record date shall be
determined by multiplying the Purchase Price in effect immediately prior to such
record date by a fraction,  the numerator of which shall be the number of shares
of Preferred  Stock and  Equivalent  Shares (if any)  outstanding on such record
date, plus the number of shares of Preferred Stock or Equivalent  Shares, as the
case may be, which the aggregate exercise,  conversion and/or exchange price for
the total number of shares of Preferred Stock or Equivalent  Shares, as the case
may be, which are obtainable upon exercise,  conversion  and/or exchange of such
rights,  options,  warrants or  convertible  or  exchangeable  securities  would
purchase at such Current Market Price, and the denominator of which shall be the
number of shares of Preferred Stock and Equivalent  Shares (if any)  outstanding
on such record date, plus the number of additional  shares of Preferred Stock or
Equivalent  Shares,  as the case may be,  which may be obtained  upon  exercise,
conversion and/or exchange of such rights,  options,  warrants or convertible or
exchangeable  securities.  In  case  such  subscription  price  may be paid in a
consideration part or all of which shall be in a form other than cash, the value
of such consideration  shall be as determined in good faith by a majority of the
Board of Directors,  whose determination shall be described in a statement filed
with the  Rights  Agent and  shall be  final,  binding  and  conclusive  for all
purposes. Preferred Stock and Equivalent Shares owned by or held for the account
of the Company or any Subsidiary shall not be deemed outstanding for the purpose
of any such  computation.  Such adjustment shall be made  successively  whenever
such a record  date is fixed;  and in the event  that such  rights,  options  or
warrants are not issued following such adjustment, the Purchase Price shall be


                                      -19-


<PAGE>


readjusted  to be the  Purchase  Price  that  would  have been in effect if such
record date had not been fixed.

         (c) In case  the  Company  shall  at any  time  after  the date of this
Agreement  fix a record  date for the  making of a  distribution  to  holders of
Preferred  Stock  (including  any such  distribution  made in connection  with a
reclassification  of the Preferred Stock or a  consolidation  or merger in which
the Company is the surviving  corporation)  of securities  (other than Preferred
Stock and rights,  options,  warrants or convertible or exchangeable  securities
referred to in Section 11(b)), cash (other than a regular periodic cash dividend
at an annual  rate not in excess of: (x) 125% of the annual  rate of the regular
cash  dividend  paid on the  Preferred  Stock during the  immediately  preceding
fiscal  year  (or,  if the  Preferred  Stock  was not  outstanding  during  such
preceding fiscal year, then 125% of the annual rate of the regular cash dividend
paid on the Common Stock  during such year),  or (y) in the event that a regular
cash dividend was not paid on the Preferred  Stock (or Common Stock) during such
preceding  fiscal year, 5% of the Current Market Value of the Preferred Stock on
the date such regular cash dividend was first declared),  property, evidences of
indebtedness,  or assets,  the Purchase  Price to be in effect after such record
date shall be determined by multiplying the Purchase Price in effect immediately
prior to such  record date by a fraction,  the  numerator  of which shall be the
Current Market Price per share of Preferred  Stock on such record date, less the
fair  market  value (as  determined  in good faith by a majority of the Board of
Directors,  whose determination shall be described in a statement filed with the
Rights Agent and shall be final, binding and conclusive for all purposes) of the
portion of such securities,  cash, property, evidences of indebtedness or assets
to be so  distributed  in  respect  of one  share of  Preferred  Stock,  and the
denominator  of which shall be such Current  Market Price per share of Preferred
Stock on such record date. Such adjustments shall be made successively  whenever
such a record date is fixed; and in the event that such distribution is not made
following  such  adjustment,  the Purchase  Price shall be  readjusted to be the
Purchase  Price that would have been in effect if such  record date had not been
fixed.

         (d) Except as provided below, no adjustment in the Purchase Price shall
be required unless such  adjustment  would require an increase or decrease of at
least 1% in the Purchase Price; provided, however, that any adjustments which by
reason  of this  Section  11(d) are not  required  to be made  shall be  carried
forward and taken into account in any subsequent  adjustment.  All  calculations
under this  Section 11 shall be made to the  nearest  cent,  to the  nearest one
hundred-thousandth   of  a  share  of  Common  Stock,  or  to  the  nearest  one
hundred-thousandths  of a share of Preferred  Stock.  Notwithstanding  the first
sentence of this Section 11(d), any adjustment required by this Section 11 shall
be made no later  than  the  earlier  of (i)  three  years  from the date of the
transaction which requires such adjustment and (ii) the Expiration Date.

         (e) If, as a result of an adjustment  made pursuant to Section 11(a) or
Section  13(a),  the  holder  of any Right  thereafter  exercised  shall  become
entitled to receive any securities of the Company other than shares of Preferred
Stock,  thereafter the Purchase Price and the number of such other securities so
receivable  upon exercise of any Right shall be subject to adjustment  from time
to time in a manner  and on terms as nearly  equivalent  as  practicable  to the
provisions  with  respect to the shares of  Preferred  Stock  contained  in this
Section 11 and the


                                      -20-

<PAGE>

provisions of Sections 7, 9, 10, 12, 13, 14 and 24 with respect to the shares of
Preferred Stock shall apply on like terms to any such other securities.

         (f) All  Rights  originally  issued by the  Company  subsequent  to any
adjustment  made to the Purchase  Price  hereunder  shall  evidence the right to
purchase,  at the  adjusted  Purchase  Price,  the number of shares of Preferred
Stock or other securities,  cash or other property purchasable from time to time
hereunder  upon  exercise of the Rights,  all subject to further  adjustment  as
provided in this Agreement.

         (g) Unless the Company shall have exercised its election as provided in
Section  11(h),  upon each  adjustment of the Purchase  Price as a result of any
calculation  made  pursuant to Sections  11(a)(i),  11(b) and 11(c),  each Right
outstanding  immediately prior to the making of such adjustment shall thereafter
evidence the right to purchase,  at the adjusted  Purchase Price, that number of
one one-thousandths of a share of Preferred Stock (calculated to the nearest one
hundred-thousandths  of a share of Preferred  Stock) obtained by (i) multiplying
the number of one  one-thousandths  of a share of Preferred  Stock  covered by a
Right  immediately  prior to  adjustment  pursuant to this Section  11(g) by the
Purchase Price in effect  immediately  prior to such  adjustment of the Purchase
Price and (ii) dividing the product so obtained by the Purchase  Price in effect
immediately after such adjustment of the Purchase Price.

         (h) The Company may elect,  on or after the date of any  adjustment  of
the Purchase Price or any adjustment to the number of shares of Preferred  Stock
for which a Right may be exercised,  to adjust the number of Rights,  in lieu of
an adjustment in the number of one one-thousandths of a share of Preferred Stock
purchasable upon the exercise of a Right.  Each of the Rights  outstanding after
such  adjustment of the number of Rights shall be exercisable  for the number of
one  one-thousandths  of a share  of  Preferred  Stock  for  which  a Right  was
exercisable  immediately prior to such adjustment.  Each Right outstanding prior
to such  adjustment  of the number of Rights  shall become that number of Rights
(calculated  to the nearest  one  hundred-thousandth)  obtained by dividing  the
Purchase Price in effect  immediately  prior to such  adjustment by the Purchase
Price in effect  immediately  after such  adjustment.  The Company  shall make a
public  announcement of its election to adjust the number of Rights,  indicating
the record date for the adjustment, and, if known at the time, the amount of the
adjustment  to be made.  This record date may be the date on which the  Purchase
Price is adjusted or any day thereafter,  but, if the Rights  Certificates  have
been  issued,  shall  be  at  least  10  days  after  the  date  of  the  public
announcement.  If Rights  Certificates have been issued, upon each adjustment of
the number of Rights  pursuant  to this  Section  11(h) the  Company  shall,  as
promptly as practicable,  cause to be distributed to holders of record of Rights
Certificates on such record date a new Rights Certificate evidencing, subject to
Section 14, the  additional  Rights to which such holders shall be entitled as a
result of such adjustment,  or, at the option of the Company,  shall cause to be
distributed to such holders of record,  in substitution  and replacement for the
Rights  Certificates  held by such holders prior to the date of  adjustment  and
upon  surrender  thereof (if required by the Company),  new Rights  Certificates
evidencing  all the Rights to which such  holders  shall be entitled  after such
adjustment.  Rights Certificates to be so distributed shall be issued,  executed
and countersigned in the manner provided for in this Agreement (and may bear, at
the option of the Company, the adjusted Purchase Price) and shall


                                      -21-


<PAGE>

be  registered in the names of the holders of record of Rights  Certificates  on
the record date specified in the public announcement.

         (i)  Irrespective  of any adjustment or change in the Purchase Price or
the number or kind of shares  issuable  upon the  exercise  of the  Rights,  the
Rights  Certificates  theretofore and thereafter  issued may continue to express
the Purchase Price per one  one-thousandth of a share of Preferred Stock and the
number of shares of Preferred  Stock which were  expressed in the initial Rights
Certificates issued hereunder.

         (j) Before  taking any action that would cause an  adjustment  reducing
the Purchase Price below the then par value, if any, of one  one-thousandth of a
share of Preferred Stock issuable upon exercise of the Rights, the Company shall
take any corporate action which may, in the opinion of its counsel, be necessary
in  order  that the  Company  may  validly  and  legally  issue  fully  paid and
nonassessable one one-thousandth shares of such Preferred Stock at such adjusted
Purchase Price.

         (k) In any  case  in  which  this  Section  11  shall  require  that an
adjustment  be made  effective  as of a record date for a specified  event,  the
Company may elect to defer until the  occurrence  of such event the  issuance to
the holder of any Right exercised after such record date the shares of Preferred
Stock and other  securities,  cash or property of the Company,  if any, issuable
upon  such  exercise  over and above the  shares  of  Preferred  Stock and other
securities, cash or property of the Company, if any, issuable upon such exercise
on the basis of the Purchase Price in effect prior to such adjustment; provided,
however,  that the  Company  shall  deliver  to such  holder a due bill or other
appropriate instrument evidencing such holder's right to receive such additional
shares (fractional or otherwise) or other securities,  cash or property upon the
occurrence of the event requiring such adjustment.

         (l) Anything in this Section 11 to the  contrary  notwithstanding,  the
Company  shall be entitled to make such  reductions  in the Purchase  Price,  in
addition to those adjustments  expressly  required by this Section 11, as and to
the extent that the Board of Directors in its sole discretion shall determine to
be advisable  in order that any  combination  or  subdivision  of the  Preferred
Stock,  issuance wholly for cash of any Preferred Stock at less than the Current
Market Price per share of Preferred Stock, issuance wholly for cash of Preferred
Stock or securities which by their terms are convertible into or exchangeable or
exercisable for Preferred Stock, stock dividends or issuance of rights,  options
or warrants  referred to in this  Section 11,  hereafter  made by the Company to
holders of its Preferred Stock, shall not be taxable to such stockholders.

         (m) The Company  covenants and agrees that it shall not (i) consolidate
with,  (ii) merge with or into, or (iii) directly or indirectly  sell,  lease or
otherwise  transfer  or  dispose of (in one  transaction  or a series of related
transactions) assets or earning power aggregating more than 50% of the assets or
earning power of the Company and its Subsidiaries taken as a whole, to any other
Person if (A) at the time of or immediately  after such  consolidation,  merger,
sale, lease, transfer or disposition there are any rights, warrants,  securities
or  other   instruments   outstanding   or  agreements  in  effect  which  would
substantially  diminish  or  otherwise  eliminate  the  benefits  intended to be
afforded by the Rights; (B) prior to, simultaneously with or


                                      -22-


<PAGE>

immediately  after  such  consolidation,   merger,  sale,  lease,   transfer  or
disposition the  stockholders (or equity holders) of the Person who constitutes,
or would constitute, the Principal Party in such transaction shall have received
a  distribution  of  Rights  previously  owned  by  such  Person  or  any of its
Affiliates  or  Associates;  or (C) the form or  nature of  organization  of the
Principal Party would preclude or limit the  exercisability  of the Rights.  The
Company  shall not  consummate  any such  consolidation,  merger,  sale,  lease,
transfer or  disposition  unless prior thereto the Company and such other Person
shall have executed and delivered to the Rights Agent a  supplemental  agreement
evidencing compliance with this Section 11(m).

         (n) The Company  covenants and agrees that, after the Stock Acquisition
Date, it will not, except as permitted by Section  11(a)(iv),  26 or 29(b), take
(or permit  any  Subsidiary  to take) any  action if at the time such  action is
taken  it  is  reasonably   foreseeable  that  such  action  will,  directly  or
indirectly, diminish or otherwise eliminate the benefits intended to be afforded
by the Rights.

         (o) Anything in this Agreement to the contrary notwithstanding,  if the
Company shall at any time prior to the  Distribution  Date (i) pay a dividend or
distribution  on the  outstanding  shares of Common  Stock  payable in shares of
Common Stock, (ii) subdivide the outstanding  Common Stock, or (iii) combine the
outstanding  Common  Stock into a smaller  number of shares,  then the number of
Rights associated with each share of Common Stock then outstanding, or issued or
delivered  thereafter but prior to the Distribution Date, and the Purchase Price
under,  and the  number of one  one-thousandths  of a share of  Preferred  Stock
issuable in respect of, the Rights, shall be proportionately  adjusted,  so that
following  such event one Right (with the  Purchase  Price and the number of one
one-thousandths  of  a  share  of  Preferred  Stock   proportionately   adjusted
thereunder)  shall thereafter be associated with each share of Common Stock then
outstanding,  or issued or delivered  thereafter  but prior to the  Distribution
Date. For example,  if the Company  effects a two-for-one  stock split at a time
when each Right (if it becomes exercisable) would entitle the holder to purchase
one  one-thousandth  of a share of Preferred Stock for a Purchase Price of $"Z",
then  following  such stock  split each  previous  Right would be split into two
current   Rights  and  thereafter   each  such  current  Right,   upon  becoming
exercisable,  would  (subject  to  further  adjustment)  entitle  the  holder to
purchase one one-thousandth of a share of Preferred Stock at a Purchase Price of
1/2 x $"Z".

         Section 12.  Certification  of  Adjustments.  Whenever an adjustment is
made as provided in Section 11 or 13, the Company  shall (a) promptly  prepare a
certificate  setting forth such  adjustment  and a brief  statement of the facts
accounting for such adjustment, (b) promptly file with the Rights Agent and with
each transfer agent for the Preferred Stock a copy of such certificate,  and (c)
mail or cause the Rights Agent to mail a brief summary thereof to each holder of
a Rights  Certificate (or, if no Rights  Certificates  have been issued, to each
holder of a certificate  representing shares of Common Stock) in accordance with
Section 25.  Notwithstanding the foregoing sentence,  the failure of the Company
to give such notice  shall not affect the  validity of or the force or effect of
or the  requirement for such  adjustment.  Any adjustment to be made pursuant to
Section 11 or 13 shall be  effective  as of the date of the event giving rise to
such adjustment.


                                      -23-


<PAGE>

         Section  13.  Consolidation,  Merger or Sale or  Transfer  of Assets or
Earning Power.

         (a) A  "Business  Combination"  shall be  deemed  to occur in the event
that, on or following a Triggering  Event,  (i) the Company  shall,  directly or
indirectly,  consolidate  with, or merge with and into,  any other Person (other
than a Subsidiary  of the Company in a  transaction  that  complies with Section
11(m) and  Section  11(n)) in a  transaction  in which  the  Company  is not the
continuing,  resulting or surviving corporation of such merger or consolidation;
(ii) any Person (other than a Subsidiary  of the Company in a  transaction  that
complies with Section 11(m) and Section  11(n)) shall,  directly or  indirectly,
consolidate  with the Company,  or shall merge with and into the  Company,  in a
transaction  in which the  Company is the  continuing,  resulting  or  surviving
corporation of such merger or consolidation  and, in connection with such merger
or consolidation,  all or part of the Common Stock shall be changed  (including,
without  limitation,  any  conversion  into or exchange  for  securities  of the
Company or of any other Person,  cash or any other property);  (iii) the Company
shall,  directly or indirectly,  effect a share exchange in which all or part of
the Common Stock shall be changed (including, without limitation, any conversion
into  or  exchange  for  securities  of any  other  Person,  cash  or any  other
property);  or (iv) the Company  shall,  directly or  indirectly,  sell,  lease,
exchange,  mortgage,  pledge  (other than pledges in the ordinary  course of the
Company's  financing  activities) or otherwise transfer or dispose of (or one or
more of its  Subsidiaries  shall directly or indirectly sell,  lease,  exchange,
mortgage,  pledge  (other than pledges in the ordinary  course of the  Company's
financing  activities) or otherwise  transfer or dispose of), in one transaction
or a series of related  transactions,  assets or earning power  aggregating more
than 50% of the  assets or earning  power of the  Company  and its  Subsidiaries
(taken as a whole) to any other  Person  (other  than the  Company or any of its
Subsidiaries  in one or more  transactions  each  and all of which  comply  with
Section 11(m) and Section 11(n)).

         In the event of a Business Combination,  proper provision shall be made
so that each holder of a Right (except as otherwise  provided in this Agreement)
shall  thereafter  have the right to receive,  upon the exercise  thereof at the
Purchase Price  immediately  prior to the first occurrence of a Triggering Event
multiplied by the number of one  one-thousandths  of a share of Preferred  Stock
for which a Right was exercisable immediately prior to the first occurrence of a
Triggering  Event (without giving effect to the Triggering  Event) in accordance
with the terms of this  Agreement,  such number of shares of Common Stock of the
Principal  Party as shall be equal to the result obtained by (x) multiplying the
Purchase Price  immediately  prior to the first occurrence of a Triggering Event
by the number of one  one-thousandths  of a share of Preferred Stock for which a
Right was exercisable  immediately prior to the first occurrence of a Triggering
Event  (without  giving effect to the Triggering  Event),  and (y) dividing that
product by 50% of the Current Market Price per share of the Common Stock of such
Principal  Party   immediately  prior  to  the  consummation  of  such  Business
Combination. All shares of Common Stock of any Person for which any Right may be
exercised  after  consummation  of a Business  Combination  as  provided in this
Section 13(a) shall,  when issued upon exercise  thereof in accordance with this
Agreement, be duly and validly authorized and issued, fully paid, nonassessable,
freely tradeable,  not subject to liens or encumbrances,  and free of preemptive
rights,  rights of first refusal or any other restrictions or limitations on the
transfer or ownership thereof of any kind or nature whatsoever.


                                      -24-


<PAGE>

         (b) After consummation of any Business  Combination,  (i) the Principal
Party  shall be liable  for,  and  shall  assume,  by  virtue  of such  Business
Combination  and without the  necessity of any further act, all the  obligations
and duties of the Company pursuant to this Agreement, (ii) the term "Company" as
used in this  Agreement  shall  thereafter be deemed to refer to such  Principal
Party, and (iii) such Principal Party shall take all steps  (including,  but not
limited to, the reservation of a sufficient number of shares of its Common Stock
in accordance with Section 9) in connection with such Business Combination as is
necessary to ensure that the  provisions of this Agreement  shall  thereafter be
applicable,  as nearly  equivalent as practicable,  in relation to the shares of
its Common Stock thereafter deliverable upon the exercise of the Rights.

         (c) The Company shall not  consummate any Business  Combination  unless
prior  thereto  (i) the  Principal  Party  shall  have a  sufficient  number  of
authorized shares of its Common Stock which have not been issued or reserved for
issuance (other than shares reserved for issuance  pursuant to this Agreement to
the  holders  of  Rights)  to  permit  the  exercise  in full of the  Rights  in
accordance with this Section 13; (ii) the Company and such Principal Party shall
have  executed  and  delivered  to the  Rights  Agent a  supplemental  agreement
providing for the fulfillment of the Principal Party's obligations and the terms
as set forth in paragraphs (a) and (b) of this Section 13 and further  providing
that, as soon as practicable on or after the date of such Business  Combination,
the  Principal  Party,  at its own  expense,  shall (A)  prepare  and  file,  if
necessary,  a registration statement on an appropriate form under the Securities
Act with respect to the Rights and the securities  purchasable  upon exercise of
the Rights;  (B) use its best  efforts to cause such  registration  statement to
become  effective as soon as practicable  after such filing and remain effective
(with a prospectus at all times meeting the  requirements of the Securities Act)
until the  Expiration  Date;  (C)  deliver to  holders of the Rights  historical
financial  statements for the Principal  Party and each of its Affiliates  which
comply in all respects with the requirements for registration on Form 10 (or any
successor  form) under the Exchange  Act; (D) use its best efforts to qualify or
register the Rights and the securities  purchasable  upon exercise of the Rights
under the state  securities or "blue sky" laws of such  jurisdictions  as may be
necessary  or  appropriate;  (E) use its best efforts to list the Rights and the
securities  purchasable  upon exercise of the Rights on a United States national
securities  exchange;  and (F) obtain  waivers of any rights of first refusal or
preemptive  rights in respect of the Common Stock of the Principal Party subject
to purchase  upon  exercise  of  outstanding  Rights;  (iii) the Company and the
Principal  Party  shall  have  furnished  to the  Rights  Agent  an  opinion  of
independent  counsel stating that such supplemental  agreement is a legal, valid
and binding agreement of the Principal Party  enforceable  against the Principal
Party in accordance with its terms; and (iv) the Company and the Principal Party
shall have filed with the Rights Agent a certificate of a nationally  recognized
firm of  independent  accountants  setting  forth the number of shares of Common
Stock of such  issuer  which may be  purchased  upon the  exercise of each Right
after the consummation of such Business Combination.

         (d)  The  provisions  of this  Section  13  shall  similarly  apply  to
successive Business  Combinations.  In the event a Business Combination shall be
consummated at any time after the occurrence of a Triggering  Event,  the Rights
which have not theretofore  been exercised  shall  thereafter be exercisable for
the  consideration  and in the manner  described in Section  13(a).  Following a
Business Combination, the provisions of Section 11(a)(ii) shall be of no effect.


                                      -25-


<PAGE>


         (e)  Notwithstanding   any  other  provision  of  this  Agreement,   no
adjustment to the number of shares of Preferred  Stock (or fractions of a share)
or other securities,  cash or other property for which a Right is exercisable or
the number of Rights  outstanding or associated  with each share of Common Stock
or any  similar  or  other  adjustment  shall  be made or be  effective  if such
adjustment  would have the effect of  reducing  or  limiting  the  benefits  the
holders of the Rights would have had absent such adjustment,  including, without
limitation,  the  benefits  under  Sections 11 and 13,  unless the terms of this
Agreement are amended so as to preserve such benefits.

         (f) The  Company  covenants  and  agrees  that it shall not  effect any
Business  Combination  if at the time of, or  immediately  after  such  Business
Combination,  there  are any  rights,  options,  warrants  or other  instruments
outstanding which would diminish or otherwise eliminate the benefits intended to
be afforded by the Rights.

         (g) Without  limiting the  generality  of this Section 13, in the event
the nature of the  organization  of any Principal  Party shall preclude or limit
the  acquisition  of Common Stock of such  Principal  Party upon exercise of the
Rights as required by Section  13(a) as a result of a Business  Combination,  it
shall be a condition to such  Business  Combination  that such  Principal  Party
shall take such steps (including,  but not limited to, a reorganization)  as may
be  necessary  to ensure that the  benefits  intended  to be derived  under this
Section 13 upon the exercise of the Rights are assured to the holders thereof.

         (h) In addition to, and without  limiting,  any other provision of this
Section 13, in case the Principal  Party which is to be a party to a transaction
referred to in this Section 13 has provision in any of its authorized securities
or in its certificate of incorporation or by-laws or other instrument  governing
its corporate affairs, which provision would have the effect of (i) causing such
Principal  Party to issue  (other  than to  holders of Rights  pursuant  to this
Section 13), in connection  with, or as a consequence of, the  consummation of a
transaction referred to in this Section 13, Common Stock of such Principal Party
at less than the then Current  Market Price per share or securities  exercisable
for, or convertible into, Common Stock of such Principal Party at less than such
then Current  Market Price,  or (ii) providing for any special  payment,  tax or
similar  provisions in connection  with the issuance of the Common Stock of such
Principal  Party  pursuant to the  provisions  of this Section 13, then, in such
event,  the Company  hereby  agrees with each holder of Rights that it shall not
consummate  any such  transaction  unless  prior  thereto  the  Company and such
Principal  Party  shall  have  executed  and  delivered  to the  Rights  Agent a
supplemental  agreement  providing  that  the  provision  in  question  of  such
Principal  Party  shall  have been  cancelled,  waived or  amended,  or that the
authorized  securities shall be redeemed,  so that the applicable provision will
have no effect in connection  with, or as a consequence of, the  consummation of
the proposed transaction.

         Section 14. Fractional Rights and Fractional Shares.

         (a) The Company shall not be required to issue fractional  Rights or to
distribute Rights Certificates which evidence fractional Rights. In lieu of such
fractional  Rights,  the Company may at its option pay to the registered holders
of the Rights  Certificates  with respect to which such fractional  Rights would
otherwise be issuable an amount in cash equal to


                                      -26-


<PAGE>

the same fraction of the current market value of a whole Right. For the purposes
of this Section  14(a),  the current  market value of a whole Right shall be the
closing  price of a Right for the Trading Day  immediately  prior to the date on
which such fractional  Rights  otherwise  would have been issuable.  The closing
price for any Trading Day shall be the last sale price on such day, regular way,
or, in case no such sale takes place on such day, the average of the closing bid
and asked  prices,  regular  way, on such day, in either case as reported in the
principal  consolidated  transaction reporting system with respect to securities
listed or  admitted to trading on the Nasdaq  National  Market or, if the Rights
are not listed or admitted to trading on the Nasdaq National Market, as reported
in the  principal  consolidated  transaction  reporting  system with  respect to
securities listed on the principal United States national securities exchange on
which the  Rights are listed or  admitted  to trading  or, if the Rights are not
listed or admitted to trading on any United States national securities exchange,
the last quoted sale price on such day or, if not so quoted,  the average of the
high bid and low asked  prices on such day in the  over-the-counter  market,  as
reported  by  Nasdaq  or such  other  system  then in use or, if on such day the
Rights are not quoted by any such  system,  the  average of the  closing bid and
asked prices on such day as furnished  by a  professional  market maker making a
market in the Rights  selected  by a majority of the Board of  Directors.  If on
such day no such  market  maker is making a market in the  Rights,  the  current
market  value of the Rights on such day shall be  determined  in good faith by a
majority of the Board of Directors,  whose determination shall be described in a
statement filed with the Rights Agent and shall be final, binding and conclusive
for all purposes.

         (b) The Company  shall not be required to issue  fractions of shares of
Preferred  Stock  (other than  fractions  which are  integral  multiples  of one
one-thousandth  of a share of Preferred Stock) upon exercise of the Rights or to
distribute  certificates  which evidence  fractional  shares of Preferred  Stock
(other than fractions which are integral  multiples of one  one-thousandth  of a
share of Preferred  Stock).  Fractions of shares of Preferred  Stock may, at the
election of the  Company,  be evidenced by  depositary  receipts  pursuant to an
appropriate  agreement  between  the Company  and a  depositary  selected by it,
provided that such agreement  shall provide that the holders of such  depositary
receipts shall have all the rights, privileges and preferences to which they are
entitled as  beneficial  owners of the  Preferred  Stock.  In lieu of fractional
shares of Preferred Stock that are not integral  multiples of one one-thousandth
of a share of Preferred  Stock, the Company may at its option (i) issue scrip or
warrants  in  registered   form  (either   represented   by  a  certificate   or
uncertificated)  or in bearer form  (represented  by a certificate)  which shall
entitle the holder to receive a full one  one-thousandth of a share of Preferred
Stock  upon the  surrender  of such  scrip or  warrants  aggregating  a full one
one-thousandth  of a share of  Preferred  Stock,  or (ii) pay to the  registered
holders  of  Rights  Certificates  at the  time  such  Rights  Certificates  are
exercised  as  provided  in this  Agreement  an amount in cash equal to the same
fraction of the current market value of a share of Preferred Stock. For purposes
of this Section 14(b),  the current  market value of a share of Preferred  Stock
shall be the closing price of a share of Preferred Stock (as determined pursuant
to the second sentence of the definition of "Current Market Price" in Section 1)
for the Trading Day immediately prior to the date of such exercise.

         (c) The Company  shall not be required to issue  fractions of shares of
Common Stock or Common Stock  Equivalents  or to distribute  certificates  which
evidence fractional shares of Common Stock or Common Stock Equivalents.  In lieu
of such fractional shares of Common


                                      -27-


<PAGE>

Stock or Common  Stock  Equivalents,  the  Company  shall pay to the  registered
holders of the Rights  Certificates  with regard to which such fractional shares
of Common  Stock or Common  Stock  Equivalents  would  otherwise  be issuable an
amount in cash equal to the  product  derived  by  multiplying  (x) the  subject
fraction, by (y) Current Market Price of the Company's Common Stock.

         (d) The holder of a Right by his acceptance  thereof  expressly  waives
any right to  receive  any  fractional  Rights  or any  fractional  shares  upon
exercise of a Right (except as otherwise provided in this Agreement).

         Section 15. Rights of Action. Except as otherwise provided,  all rights
of action in respect of this Agreement are vested in the  respective  registered
holders of the Rights  Certificates  (and, prior to the  Distribution  Date, any
registered holders of associated Common Stock); and any registered holder of any
Rights  Certificate (or, prior to the Distribution Date, any share of associated
Common  Stock),  without the consent of the Rights Agent or of the holder of any
other Right,  may, on his own behalf and for his own benefit,  enforce,  and may
institute and maintain any suit, action or proceeding against the Company or any
Principal Party to enforce,  or otherwise act in respect of, his rights pursuant
to this Agreement.  Without limiting the foregoing or any remedies  available to
the  holders of Rights,  it is  specifically  acknowledged  that the  holders of
Rights would not have an adequate remedy at law for any breach of this Agreement
and will be entitled to  specific  performance  of the  obligations  under,  and
injunctive relief against any actual or threatened  violation of the obligations
of any Person subject to, this Agreement.

         Section  16.  Agreement  of  Rights  Holders  Concerning  Transfer  and
Ownership of Rights.  Every holder of a Right by accepting the same consents and
agrees with the Company  and the Rights  Agent and with every other  holder of a
Right that:

         (a) prior to the  Distribution  Date,  the Rights will be  transferable
only in connection with the transfer of Common Stock;

         (b)  after the  Distribution  Date,  the  Rights  Certificates  will be
transferable  on the registry  books of the Rights Agent only if  surrendered at
the  principal  corporate  trust office of the Rights  Agent,  duly  endorsed or
accompanied by a proper instrument of transfer;

         (c) the Company  and the Rights  Agent may deem and treat the Person in
whose  name a Rights  Certificate  (or,  prior  to the  Distribution  Date,  the
associated Common Stock certificate) is registered as the absolute owner thereof
and of the Rights evidenced thereby  (notwithstanding any notations of ownership
or writing on the Rights  Certificate or the associated Common Stock certificate
made by anyone other than the Company,  the transfer  agent for the Common Stock
or the Rights  Agent) for all purposes  whatsoever,  and neither the Company nor
the Rights Agent shall be affected by any notice to the contrary; and

         (d) notwithstanding anything in this Agreement to the contrary, neither
the Company nor the Rights  Agent  shall have any  liability  to any holder of a
Right or other  Person  as a  result  of its  inability  to  perform  any of its
obligations under this Agreement by reason of


                                      -28-


<PAGE>

any preliminary or permanent  injunction or other order, decree or ruling issued
by a  court  of  competent  jurisdiction  or by a  governmental,  regulatory  or
administrative  agency  or  commission,  or any  statute,  rule,  regulation  or
executive  order   promulgated  or  enacted  by  any   governmental   authority,
prohibiting or otherwise restraining  performance of such obligation;  provided,
however, the Company must use its best efforts to have any such order, decree or
ruling lifted or otherwise overturned as soon as possible.

         Section 17. Rights Holder Not Deemed a Stockholder. No holder, as such,
of any Rights  Certificate  shall be entitled to vote or to receive dividends or
distributions  or shall be deemed for any purpose the holder of Preferred  Stock
or any  other  securities,  cash or  other  property  which  may at any  time be
issuable on the exercise of the Rights represented  thereby,  nor shall anything
contained in this Agreement or in any Rights  Certificate be construed to confer
upon the  holder of any  Rights  Certificate,  as such,  any of the  rights of a
stockholder of the Company, including, without limitation, any right (i) to vote
for the election of directors or upon any matter  submitted to  stockholders  at
any meeting thereof,  (ii) to give or withhold consent to any corporate  action,
(iii) to receive  notice of meetings  or other  actions  affecting  stockholders
(except as provided in Section 24), (iv) to receive dividends,  distributions or
subscription  rights, (v) to institute,  as a holder of Preferred Stock or other
securities  issuable  on  exercise  of the  Rights  represented  by  any  Rights
Certificate, any derivative action on behalf of the Company, or otherwise, until
and  only to the  extent  that the  Right or  Rights  evidenced  by such  Rights
Certificate  shall have been exercised in accordance with the provisions of this
Agreement.

         Section 18.  Concerning the Rights Agent.  The Company agrees to pay to
the  Rights  Agent  reasonable  compensation  for all  services  rendered  by it
hereunder and, from time to time, on demand of the Rights Agent,  its reasonable
expenses and counsel fees and other disbursements incurred in the administration
and execution of this  Agreement and the exercise and  performance of its duties
hereunder.  The Company  also agrees to  indemnify  the Rights Agent for, and to
hold it harmless against,  any loss, liability or expense incurred without gross
negligence,  bad faith,  willful  misconduct or breach of this  Agreement on the
part of the Rights  Agent for  anything  done or omitted by the Rights  Agent in
connection with the acceptance and  administration of this Agreement,  including
the costs and  expenses  of  defending  against  any claim of  liability  in the
premises. This indemnification shall survive the termination of this Agreement.

         The Rights Agent shall be protected and shall incur no liability for or
in respect of any action taken, suffered or omitted by it in connection with its
administration  of this  Agreement in reliance  upon any Rights  Certificate  or
certificate for Preferred  Stock or Common Stock or for other  securities of the
Company,  instrument of assignment or transfer, power of attorney,  endorsement,
affidavit, letter, notice, direction, consent,  certificate,  statement or other
paper or  document  reasonably  believed  by it to be genuine  and to be signed,
executed and, when necessary,  verified or acknowledged, by the proper Person or
Persons, or otherwise upon the advice of counsel as set forth in Section 20.

         Section 19. Merger or  Consolidation or Change of Name of Rights Agent.
Any corporation into which the Rights Agent or any successor Rights Agent may be
merged or with


                                      -29-


<PAGE>

which it may be  consolidated,  or any corporation  resulting from any merger or
consolidation to which the Rights Agent or any successor Rights Agent shall be a
party,  or any  corporation  succeeding to the corporate  trust  business of the
Rights Agent or any successor Rights Agent, shall be the successor to the Rights
Agent under this  Agreement  without the  execution or filing of any document or
any  further act on the part of any of the parties  hereto,  provided  that such
corporation  would be eligible for appointment as a successor Rights Agent under
Section 21. In case at the time such successor Rights Agent shall succeed to the
agency created by this Agreement any of the Rights  Certificates shall have been
countersigned  but not delivered,  any such successor Rights Agent may adopt the
countersignature  of the  predecessor  Rights  Agent  and  deliver  such  Rights
Certificate  so  countersigned;  and in  case  at that  time  any of the  Rights
Certificates shall not have been  countersigned,  any successor Rights Agent may
countersign such Rights Certificate either in the name of the predecessor Rights
Agent or in the name of the successor  Rights Agent;  and in all such cases such
Rights   Certificates   shall  have  the  full  force  provided  in  the  Rights
Certificates and in this Agreement.

         In case at any time the name of the Rights  Agent  shall be changed and
at such time any of the Rights  Certificates  shall have been  countersigned but
not delivered,  the Rights Agent may adopt the countersignature  under its prior
name and deliver Rights Certificates so countersigned;  and in case at that time
any of the Rights  Certificates  shall not have been  countersigned,  the Rights
Agent may countersign  such Rights  Certificates  either in its prior name or in
its changed name; and in all such cases such Rights  Certificates shall have the
full force provided in the Rights Certificates and in this Agreement.

         Section 20. Duties of Rights  Agent.  The Rights Agent  undertakes  and
agrees to perform the duties and obligations  imposed by this Agreement upon the
following terms and  conditions,  by all of which the Company and the holders of
Rights Certificates, by their acceptance thereof, shall be bound:

         (a) The Rights Agent may consult  with legal  counsel (who may be legal
counsel  for the  Company),  and the opinion of such  counsel  shall be full and
complete authorization and protection to the Rights Agent as to any action taken
or omitted to be taken by it in good faith and in accordance with such opinion.

         (b) Whenever in the  performance of its duties under this Agreement the
Rights  Agent  shall  deem it  necessary  or  desirable  that any fact or matter
(including,  without  limitation,  the identity of any  Acquiring  Person or any
Affiliate or Associate of an Acquiring  Person or the  determination  of Current
Market  Price)  be  proved  or  established  by the  Company  prior to taking or
suffering any action  hereunder,  such fact or matter  (unless other evidence in
respect thereof be  specifically  prescribed in this Agreement) may be deemed to
be conclusively  proved and established by a certificate signed by the Chairman,
the President, the Chief Executive Officer, any Vice President, the Treasurer or
the  Secretary  of the  Company  and  delivered  to the Rights  Agent;  and such
certificate shall be full authorization to the Rights Agent for any action taken
or omitted  by it in good  faith  under this  Agreement  in  reliance  upon such
certificate.

         (c) The  Rights  Agent  shall be  liable  hereunder  only for the gross
negligence,  bad faith,  willful misconduct or breach of this Agreement by it or
its attorneys or agents.


                                      -30-


<PAGE>

         (d) The Rights Agent shall not be liable for or by reason of any of the
statements  of fact or recitals  contained  in this  Agreement  or in the Rights
Certificates (except its countersignature  thereof) or be required to verify the
same, but all such  statements and recitals are and shall be deemed to have been
made by the Company only.

         (e) The Rights Agent shall not be under any  responsibility  in respect
of the  validity  of  this  Agreement  or the  execution  and  delivery  of this
Agreement (except the due execution and delivery of this Agreement by the Rights
Agent) or in respect of the  validity  or  execution  of any Rights  Certificate
(except  its  countersignature  thereof);  nor shall it be  responsible  for any
breach by the Company of any covenant or condition  contained in this  Agreement
or in any Rights Certificate;  nor shall it be responsible for any change in the
transferability  or  exercisability of the Rights or any change or adjustment in
the terms of the  Rights  (including  the  manner,  method  or  amount  thereof)
provided for in Section 3, 11, 13 or 23 or any other provision of this Agreement
or the ascertaining of the existence of facts that would require any such change
or adjustment (except with respect to the exercise of Rights evidenced by Rights
Certificates  after actual notice of any change or adjustment is required);  nor
shall it by any act hereunder be deemed to make any  representation  or warranty
as to the authorization or reservation of any shares of Preferred Stock,  Common
Stock or other  securities to be issued pursuant to this Agreement or any Rights
Certificate  or as to whether any shares of  Preferred  Stock,  Common  Stock or
other securities will, when issued, be validly authorized and issued, fully paid
and nonassessable.

         (f) The Company agrees that it will perform,  execute,  acknowledge and
deliver or cause to be performed, executed,  acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying out or  performance  by the Rights Agent of
its duties and obligations under this Agreement.

         (g) The  Rights  Agent is  hereby  authorized  and  directed  to accept
instructions  with respect to the  performance of its duties  hereunder from the
Chairman,  the Chief Executive Officer, the President,  any Vice President,  the
Secretary or the  Treasurer of the  Company,  and to apply to such  officers for
advice or instructions in connection with its duties, and it shall not be liable
for any action  taken or  omitted to be taken by it in good faith in  accordance
with  instructions  of any such officer or for any delay in acting while waiting
for such instructions.  When applying to any such officer for instructions,  the
Rights Agent may set forth in writing (i) any proposed action or omission of the
Rights Agent with respect to its duties or obligations  under this Agreement and
(ii) the date on or after which the Rights  Agent  proposes  such action will be
taken or omitted. Such date shall not be less than three Business Days after any
such officer receives such  application for instructions  from the Rights Agent.
Unless the Rights  Agent has  received  written  instructions  from the  Company
(including  any such officer)  with respect to such proposed  action or omission
prior to such date (or, if longer, in the case of a proposed action to be taken,
prior to the Rights Agent actually  taking such action),  the Rights Agent shall
not be liable  for the  actions  or  omissions  set  forth in such  application,
provided that such action or omission does not violate any express  provision of
this Agreement.


                                      -31-


<PAGE>

         (h) The Rights Agent and any stockholder, director, officer or employee
of the  Rights  Agent  may  buy,  sell  or deal in any of the  Rights  or  other
securities of the Company or become pecuniarily interested in any transaction in
which the  Company  may be  interested,  or  contract  with or lend money to the
Company or otherwise act as fully and freely as though the Rights Agent were not
serving as such under this  Agreement.  Nothing in this Agreement shall preclude
the Rights  Agent from acting in any other  capacity  for the Company or for any
other legal entity.

         (i) The Rights  Agent may  execute  and  exercise  any of the rights or
powers hereby vested in it or perform any duty hereunder  either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable  for any act,  default,  neglect or  misconduct  of such attorney or
agent, provided that the Rights Agent exercised reasonable care in the selection
and continued employment of such attorney or agent.

         (j) No provision of this  Agreement  shall  require the Rights Agent to
expend or risk its own funds or otherwise  incur any financial  liability in the
performance  of any of its duties  hereunder  or in the  exercise  of its rights
hereunder if there shall be reasonable  grounds for believing  that repayment of
such funds or adequate  indemnification  against  such risk or  liability is not
reasonably assured to the Rights Agent.

         (k) If,  with  respect to any  Rights  Certificate  surrendered  to the
Rights Agent for exercise or transfer,  the certificate  attached to the form of
assignment  or form of election to purchase,  as the case may be, has either not
been  completed  or  indicates  an  affirmative  response  to  clause 1 and/or 2
thereof, the Rights Agent shall not take any further action with respect to such
requested exercise or transfer without first consulting with the Company.

         Section 21. Change of Rights  Agent.  The Rights Agent or any successor
Rights Agent may resign and be discharged  from its duties under this  Agreement
upon 30 days' notice in writing mailed to the Company and to each transfer agent
of the Common Stock or Preferred  Stock by registered or certified  mail, and to
the holders of the Rights  Certificates  by  first-class  mail.  The Company may
remove the Rights  Agent or any  successor  Rights Agent upon 30 days' notice in
writing,  mailed to the Rights Agent or successor  Rights Agent, as the case may
be,  and to each  transfer  agent  of the  Common  Stock or  Preferred  Stock by
registered or certified  mail, and to the holders of the Rights  Certificates by
first-class  mail.  If the  Rights  Agent  shall  resign or be  removed or shall
otherwise become  incapable of acting,  the Company shall appoint a successor to
the Rights Agent.  Notwithstanding any other provision of this Agreement,  in no
event shall the  resignation  or removal of a Rights Agent be effective  until a
successor  Rights  Agent  shall  have  been  appointed  and have  accepted  such
appointment.  If the Company shall fail to make such appointment within a period
of 30 days after such  removal or after it has been  notified in writing of such
resignation or incapacity by the resigning or  incapacitated  Rights Agent or by
any holder of a Rights  Certificate  (who shall,  with such  notice,  submit his
Rights  Certificate  for inspection by the Company),  then the incumbent  Rights
Agent or the registered holder of any Rights  Certificate may apply to any court
of  competent  jurisdiction  for the  appointment  of a new  Rights  Agent.  Any
successor  Rights  Agent,  whether  appointed by the Company or by such a court,
shall be a corporation organized and doing business under the laws of the United
States  or any  state  of the  United  States  so long as  such  corporation  is
authorized


                                      -32-


<PAGE>

to conduct a corporate  trust or banking  business  under the laws of such state
and is in good  standing,  which  is  authorized  under  such  laws to  exercise
corporate  trust powers and is subject to  supervision or examination by federal
or state  authority and which has at the time of its appointment as Rights Agent
a combined capital and surplus of at least $100,000,000.  After appointment, the
successor Rights Agent shall be vested with the same powers,  rights, duties and
responsibilities  as if it had been  originally  named as Rights  Agent  without
further act or deed but the predecessor  Rights Agent shall deliver and transfer
to the successor  Rights Agent any property at the time held by it hereunder and
execute and deliver any further assurance, conveyance, act or deed necessary for
such purpose.  Not later than the effective  date of any such  appointment,  the
Company shall file notice thereof in writing with the  predecessor  Rights Agent
and each transfer agent of the Common Stock or Preferred Stock and mail a notice
thereof in writing to the registered holders of the Rights Certificates. Neither
the failure to give any notice provided for in this Section 21, however, nor any
defect  therein,  shall  affect the legality or validity of the  resignation  or
removal of the Rights Agent or the appointment of the successor Rights Agent, as
the case may be.

         Section 22. Issuance of New Rights Certificates. Notwithstanding any of
the provisions of this Agreement or of the Rights  Certificates to the contrary,
the Company may, at its option,  issue new Rights  Certificates  evidencing  new
Rights in such form as may be approved  by a majority of the Board of  Directors
of the Company to reflect any  adjustment  or change in the  Purchase  Price per
share and the  number  or kind or class of  securities,  cash or other  property
purchasable under the Rights Certificates made in accordance with the provisions
of this  Agreement.  In  addition,  in  connection  with the issuance or sale of
Common Stock  following  the  Distribution  Date and prior to the earlier of the
Redemption Date and the Expiration  Date, the Company may with respect to Common
Stock so issued or sold  pursuant  to (i) the  exercise of stock  options,  (ii)
under any employee plan or arrangement,  (iii) upon the exercise,  conversion or
exchange  of  securities  notes or  debentures  issued by the  Company or (iv) a
contractual  obligation  of the  Company,  in each  case  existing  prior to the
Distribution Date, issue Rights Certificates representing the appropriate number
of Rights in connection with such issuance or sale.

         Section 23. Redemption

         (a) The Board of Directors may, at its option, at any time prior to the
earlier of (i) the Stock  Acquisition Date and (ii) the Expiration Date,  redeem
all but not less than all of the  then-outstanding  Rights at a redemption price
of $.01 per Right (the "Redemption Price") appropriately adjusted to reflect any
stock split, stock dividend or similar  transaction  occurring after the date of
this  Agreement.  The Company may, at its option,  pay the  Redemption  Price in
cash, shares (including fractional shares) of Common Stock (based on the Current
Market Price of the Common Stock at the time of redemption) or any other form of
consideration deemed appropriate by the Board of Directors.

         (b) At the time and date of  effectiveness  set forth in any resolution
of the Board of Directors ordering the redemption of the Rights (the "Redemption
Date"),  without any further action and without any further notice, the right to
exercise the Rights will terminate and the only right  thereafter of the holders
of Rights shall be to receive the Redemption Price;


                                      -33-


<PAGE>

provided,  however,  that  such  resolution  of the  Board of  Directors  may be
revoked,  rescinded or otherwise modified at any time prior to the time and date
of  effectiveness  set  forth in such  resolution,  in which  event the right to
exercise  will  not  terminate  at the time  and  date  originally  set for such
termination by the Board of Directors.  As soon as practicable  after the action
of the Board of Directors  ordering the  redemption  of the Rights,  the Company
shall give notice of such  redemption  to the Rights Agent and to the holders of
the then-outstanding  Rights by mailing such notice to all such holders at their
last  addresses as they appear upon the  registry  books of the Rights Agent or,
prior to the  issuance  of Rights  Certificates,  on the  registry  books of the
transfer  agent for the Common  Stock.  Any notice which is mailed in the manner
provided  in this  Agreement  shall be deemed  given,  whether or not the holder
receives  the notice.  Each such notice of  redemption  will state the method by
which the payment of the Redemption Price will be made. In any case,  failure to
give such notice by mail, or any defect in the notice,  to any particular holder
of Rights  shall not affect the  sufficiency  of the notice to other  holders of
Rights. In the case of a redemption permitted under this Section 23, the Company
may, at its option,  discharge all of its obligations with respect to the Rights
by (i) issuing a press release announcing the manner of redemption of the Rights
and (ii) mailing  payment of the Redemption  Price to the registered  holders of
the Rights at their last  addresses as they appear on the registry  books of the
Rights  Agent or,  prior to the  issuance  of the  Rights  Certificates,  on the
registry books of the transfer agent for the Common Stock, and upon such action,
all outstanding  Rights  Certificates shall be null and void without any further
action  by the  Company.  Neither  the  Company  nor  any of its  Affiliates  or
Associates  may redeem,  acquire or purchase for value any Rights at any time in
any manner  other than as  specifically  set forth in this Section 23, and other
than in  connection  with the  purchase  of shares of Common  Stock prior to the
earlier of the Distribution Date and the Expiration Date.

         Section 24. Notice of Certain Events. In case the Company,  on or after
the Distribution Date, shall propose to (a) pay any dividend payable in stock of
any  class  to  the  holders  of  its  Preferred  Stock  or to  make  any  other
distribution  to the  holders  of its  Preferred  Stock  (other  than a  regular
periodic  cash  dividend  at an annual  rate not in excess of 125% of the annual
rate of the cash  dividend paid on the  Preferred  Stock during the  immediately
preceding fiscal year, or if the Preferred Stock was not outstanding during such
preceding fiscal year, then 125% of the annual rate of the cash dividend paid on
the Common Stock during such year); or (b) offer to the holders of its Preferred
Stock rights, options or warrants to subscribe for or to purchase any additional
shares  of  Preferred  Stock  or  shares  of stock  of any  class  or any  other
securities,  rights  or  options;  or (c)  effect  any  reclassification  of the
Preferred Stock (other than a reclassification involving only the subdivision of
outstanding  shares  of  Preferred  Stock,  a  change  in the par  value of such
Preferred Stock or a change from par value to no par value);  or (d) directly or
indirectly  effect any consolidation or merger into or with, or effect any sale,
lease,  exchange or other transfer or  disposition  (or to permit one or more of
its  Subsidiaries  to effect any sale,  lease,  exchange  or other  transfer  or
disposition),  in one transaction or a series of related  transactions,  of more
than 50% of the  assets or earning  power of the  Company  and its  Subsidiaries
(taken  as a whole)  to,  any  other  Person;  or (e)  effect  the  liquidation,
dissolution  or winding up of the Company,  then, in each such case, the Company
shall give to each holder of a Right, in accordance with Section 25, a notice of
such  proposed  action,  which shall specify any record date for the purposes of
such  stock  dividend,  distribution  or  rights,  or the  date  on  which  such
reclassification,   consolidation,  merger,  sale,  lease,  exchange,  transfer,
disposition,


                                      -34-


<PAGE>

liquidation,  dissolution,  or winding  up is to take place and if such  holders
will or may  participate  therein,  the  date of  participation  therein  by the
holders of Common Stock and/or Preferred Stock, if any such date is to be fixed,
and such  notice  shall be so given in the case of any action  covered by clause
(a) or (b)  above at least 20 days  prior  to the  record  date for  determining
holders of the Preferred  Stock for purposes of such action,  and in the case of
any such other action,  at least 20 days prior to the date of the taking of such
proposed action or the date of participation  therein, if any, by the holders of
Preferred Stock, whichever shall be the earlier.

         In case any Triggering Event or Business Combination shall occur, then,
in any such case,  the Company shall as soon as practicable  thereafter  give to
each holder of a Rights  Certificate,  in accordance  with Section 25, notice of
the occurrence of such  Triggering  Event or Business  Combination,  which shall
specify the Triggering  Event or Business  Combination and include a description
of the  consequences of such event to holders of Rights under Section  11(a)(ii)
or 13.

         The failure to give notice as required by this Section 24 or any defect
therein  shall not affect the  legality or  validity of the action  taken by the
Company or the vote upon any such action.

         Section 25. Notices. Notices or demands authorized by this Agreement to
be given or made by the Rights Agent or by the holder of any Rights  Certificate
to or on the Company shall be sufficiently  given or made if sent by first-class
mail,  postage  prepaid,  addressed  (until another address (or another person's
attention) is filed in writing with the Rights Agent) as follows:

                           3-D Geophysical, Inc.
                           8226 Park Meadows Drive
                           Littleton, Colorado  80124

                           Attention: Secretary

Subject to the provisions of Section 21, any notice or demand authorized by this
Agreement  to be given or made by the  Company  or by the  holder of any  Rights
Certificate  to or on the Rights  Agent shall be  sufficiently  given or made if
sent by first-class mail, postage prepaid,  addressed (until another address (or
another person's attention) is filed in writing with the Company) as follows:

                           American Securities
                            Transfer & Trust, Inc.
                           1825 Lawrence Street, Suite 444
                           Denver, CO  80202

                           Attention:  Kathy Heagerty


                                      -35-


<PAGE>

Notices  or  demands  authorized  by this  Agreement  to be given or made by the
Company or the Rights  Agent to the  holder of any Rights  Certificate  shall be
sufficiently  given  or  made  if sent by  first-class  mail,  postage  prepaid,
addressed  to such holder at the address of such holder as shown on the registry
books of the Company (or, if no Rights Certificates have been issued, if sent by
first-class  mail,  postage  prepaid,  addressed to the holder of a  certificate
representing  shares of Common  Stock at the  address of such holder as shown on
the Company's Common Stock registry books).

         Section 26.  Amendments  and  Supplements.  This  Agreement  may not be
amended or  supplemented  except as  permitted  in Section  26(a) or 26(b) or as
contemplated by Section 11(a)(iii).

         (a) At any time prior to the Distribution Date, a majority of the Board
of  Directors  may,  and the  Rights  Agent  shall,  if so  directed,  amend  or
supplement any provision of this  Agreement  without the approval of any holders
of Rights.

         (b) From and after the  Distribution  Date,  a majority of the Board of
Directors may, and the Rights Agent shall,  if so directed,  amend or supplement
this Agreement without the approval of any holders of Rights Certificates (i) to
cure any  ambiguity,  (ii) to correct or supplement  any provision  contained in
this Agreement which may be defective or  inconsistent  with any other provision
of this Agreement,  or (iii) to change or supplement the provisions hereunder in
any manner which the Company may deem necessary or desirable and which shall not
adversely affect the interests of the holders of Rights Certificates (other than
an Acquiring Person or an Affiliate or Associate of an Acquiring Person).

         (c) Immediately upon the action of a majority of the Board of Directors
providing  for any  amendment  or  supplement  pursuant to this  Section 26, and
without any further  action and without  notice,  such  amendment or  supplement
shall be deemed effective.  Promptly  following the adoption of any amendment or
supplement  pursuant to this Section 26, the Company shall deliver to the Rights
Agent a copy,  certified  by the  Secretary  or any  Assistant  Secretary of the
Company,  of resolutions  of a majority of the Board of Directors  adopting such
amendment or supplement.  Upon such delivery,  the amendment or supplement shall
be administered by the Rights Agent as part of this Agreement in accordance with
the terms of this Agreement, as so amended or supplemented.

         Section  27.  Successors.  All the  covenants  and  provisions  of this
Agreement  by or for the benefit of the  Company or the Rights  Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

         Section 28. Benefits of this Agreement;  Determinations  and Actions by
the Board of Directors.  Nothing in this Agreement shall be construed to give to
any Person other than the Company,  the Rights Agent and the registered  holders
of Rights any legal or equitable  right,  remedy or claim under this  Agreement;
and this Agreement  shall be for the sole and exclusive  benefit of the Company,
the Rights Agent and the registered holders of the Rights.


                                      -36-


<PAGE>

         For purposes of this Agreement, any calculation of the number of shares
of Common Stock  outstanding at any particular  time shall be made in accordance
with  the  last  sentence  of  Rule  13d-3(d)(1)(i)  of the  General  Rules  and
Regulations  under the  Exchange  Act (or any  successor  provision);  provided,
however,  that any  such  calculation  made  for  purposes  of  determining  the
particular  percentage of outstanding shares of Common Stock of which any Person
is the  Beneficial  Owner shall also include any such other  securities not then
actually  issued and  outstanding  which such  Person  would be deemed to be the
Beneficial  Owner of, or to  "beneficially  own,"  pursuant to Section 1(d). The
Board of Directors of the Company shall have the  exclusive  power and authority
to administer this Agreement and to exercise all rights and powers  specifically
granted to the Board of Directors  of the Company or the  Company,  or as may be
necessary or  advisable  in the  administration  of this  Agreement,  including,
without limitation,  the right and power to (i) interpret the provisions of this
Agreement,  and (ii) make all  determinations  deemed necessary or advisable for
the administration of this Agreement (including a determination to redeem or not
redeem the Rights,  to exchange or not  exchange  the Rights for Common Stock or
other securities of the Company, or to amend or supplement this Agreement).  All
such actions,  calculations,  interpretations and determinations (including, for
purposes of clause (y) below, all omissions with respect to the foregoing) which
are done or made by the Board of  Directors  in good faith,  shall (x) be final,
conclusive  and binding on the  Company,  the Rights  Agent,  the holders of the
Rights and all other Persons,  and (y) not subject the Board of Directors to any
liability to the holders of the Rights.

         Section 29. Severability.

         (a) If any term,  provision,  covenant or restriction of this Agreement
or the  application  thereof to any Person or to any  circumstance  is held by a
court of  competent  jurisdiction  or other  authority  to be  invalid,  void or
unenforceable,   the   remainder  of  the  terms,   provisions,   covenants  and
restrictions  of this Agreement  shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

         (b) If legal  counsel to the Company  delivers to the Company a written
opinion to the effect  that,  as a result of changes in federal  law or Delaware
law, any term,  provision,  covenant or  restriction  of this  Agreement  may be
invalid,  void or unenforceable,  then,  notwithstanding  any other provision of
this  Agreement,  the Company and the Rights  Agent may amend this  Agreement to
modify,  revise or delete such term,  provision,  covenant or restriction to the
extent necessary to comply with such law as so changed.

         Section 30.  Governing Law. This Agreement and each Rights  Certificate
issued  hereunder  shall be deemed to be a  contract  made under the laws of the
State of Delaware  and for all  purposes  shall be governed by and  construed in
accordance  with the internal  laws of such state  applicable to contracts to be
made and performed entirely within such State.

         Section  31.   Counterparts.   This   Agreement   may  be  executed  in
counterparts and each of such  counterparts  shall for all purposes be deemed to
be an original, and both such counterparts shall together constitute but one and
the same instrument.


                                      -37-


<PAGE>

         Section 32. Descriptive  Headings.  Descriptive headings of the several
Sections of this  Agreement  are  inserted  for  convenience  only and shall not
control or affect the meaning or  construction  of any of the provisions of this
Agreement.

         Section 33. Grammatical Construction.  Throughout this Agreement, where
such meanings would be  appropriate,  (a) any pronouns used herein shall include
the corresponding masculine,  feminine or neuter forms (e.g., references to "he"
shall also include "she" and "it" and  references to "who" and "whom" shall also
include  "which"),  (b) the plural form of nouns and pronouns  shall include the
singular and  vice-versa,  (c)  reference  to a Section  means a Section of this
Agreement,  and (d) the word "including" means "including,  without limitation,"
whether expressly stated or not.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and their  respective  corporate seals to be hereunto  affixed and
attested, all as of the day and year first above written.


                                               3-D GEOPHYSICAL, INC.

Attest:

/s/ John Wilkie                                By: /s/ Joel Friedman 
- ----------------                                   ----------------- 
                                               Name:   Joel Friedman 
                                               Title:  Chairman      
                                               


                                               AMERICAN SECURITIES TRANSFER
                                                 & TRUST, INC.

Attest:

/s/ K. Watson
- ----------------                               By: /s/ Kathy Heagerty
                                                  -------------------
                                               Name:  Kathy Heagerty
                                               Title: Operations Officer


                                      -38-


<PAGE>

                                                                       Exhibit A
                                     FORM OF
               CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS
                     OF JUNIOR PARTICIPATING PREFERRED STOCK
                                       OF
                              3-D GEOPHYSICAL, INC.

                 Pursuant to Section 151 of the Corporation Law
                            of the State of Delaware


         I, Joel  Friedman,  Chairman of 3-D  Geophysical,  Inc., a  corporation
organized  and  existing  under  the  General  Corporation  Law of the  State of
Delaware,  in accordance  with the provisions of Section 151 thereof,  DO HEREBY
CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors by
the Amended and Restated  Certificate of  Incorporation  of the Corporation (the
"Restated  Certificate"),  the Board of Directors on July 17, 1997,  adopted the
following  resolution  creating a series of 100,000  shares of  Preferred  Stock
designated as Junior Participating Preferred Stock:

         RESOLVED, that pursuant to the authority vested in the Board by ARTICLE
IV of  the  Restated  Certificate  and  out of the  Preferred  Stock  authorized
therein,  the Board hereby  authorizes  that a series of Preferred  Stock of the
Corporation  be, and it hereby is, created and that the  designation  and amount
thereof and the voting powers, preferences and relative, participating, optional
and other special rights of the shares of such series,  and the  qualifications,
limitations or restrictions thereof are as follows:

         Section 1.  Designation  and  Amount;  Rank.  The shares of such series
shall be  designated  as "Junior  Participating  Preferred  Stock" (the  "Junior
Preferred  Stock") and the number of shares  constituting  such series  shall be
100,000.  Such number of shares may be increased or decreased by  resolution  of
the Board of Directors;  provided,  that no decrease  shall reduce the number of
shares of Junior Preferred Stock to a number less than the number of shares then
outstanding plus the number of shares reserved for issuance upon the exercise of
outstanding  options,  rights or warrants or upon the  conversion or exchange of
any  outstanding   securities   issued  by  the  Company   convertible  into  or
exchangeable  for Junior Preferred Stock. The Junior Preferred Stock shall rank,
with respect to the payment of  dividends  and the  distribution  of assets upon
liquidation,  dissolution  or  winding  up of the  Company,  junior to all other
series of Preferred  Stock and to all other classes  preferred or special stock,
and all series of any thereof, and senior to the Common Stock.

         Section 2. Dividends and Distributions.

         (A)  Subject  to the prior and  superior  rights of the  holders of any
shares of any series of Preferred  Stock and of any shares of any other class of
preferred or special  stock,  and any series of any thereof,  ranking  prior and
superior to the shares of Junior Preferred Stock with respect to dividends,  the
holders of shares of Junior  Preferred  Stock,  in  preference to the holders of
Common  Stock  (as  referred  to and  defined  in  Article  IV of  the  Restated
Certificate)


<PAGE>

and of any other junior  stock,  shall be entitled to receive,  when,  as and if
declared  by the  Board of  Directors  out of funds  legally  available  for the
purpose,  quarterly  dividends  payable in cash on the  fifteenth  day of March,
June,  September  and  December  in each year (each such date being  referred to
herein  as a  "Quarterly  Dividend  Payment  Date"),  commencing  on  the  first
Quarterly  Dividend Payment Date after the first issuance of a share or fraction
of a share of Junior  Preferred  Stock,  in an amount per share  (rounded to the
nearest  cent)  equal to the  greater of (a)  $100.00 and (b) the sum of (i) the
Adjustment Number (as defined below) times the aggregate per share amount of all
cash  dividends,  and (ii) the  Adjustment  Number times the aggregate per share
amount (payable in kind) of all non-cash dividends or other  distributions other
than a  dividend  payable  in  shares of Common  Stock or a  subdivision  of the
outstanding shares of Common Stock (by reclassification or otherwise),  declared
on the Common Stock since the immediately  preceding  Quarterly Dividend Payment
Date or, with respect to the first Quarterly  Dividend  Payment Date,  since the
first  issuance of any share or fraction of a share of Junior  Preferred  Stock.
The "Adjustment Number" shall be 1000, as adjusted from time to time pursuant to
this  paragraph (A). In the event the  Corporation  shall at any time after July
18, 1997 (i) declare or pay any dividend on the Common  Stock  payable in shares
of Common  Stock,  (ii)  subdivide the  outstanding  Common Stock into a greater
number of shares,  or (iii) combine the outstanding  Common Stock into a smaller
number  of  shares,  then in each  such  case the  Adjustment  Number  in effect
immediately prior to such event shall be adjusted by multiplying such Adjustment
Number by a fraction  the  numerator  of which is the number of shares of Common
Stock  outstanding  immediately after such event and the denominator of which is
the number of shares of Common Stock that were outstanding  immediately prior to
such event.

         (B) The  Corporation  shall declare a dividend or  distribution  on the
Junior  Preferred  Stock  as  provided  in  paragraph  (A)  of  this  Section  2
immediately  after it declares a dividend or  distribution  on the Common  Stock
(other than a dividend  payable in like shares of Common Stock);  provided that,
in the event no dividend or distribution  shall have been declared on the Common
Stock during the period between any Quarterly Dividend Payment Date and the next
subsequent  Quarterly  Dividend  Payment Date, a dividend of $50.00 per share on
the Junior  Preferred  Stock  shall,  when,  as and if  declared by the Board of
Directors out of funds  legally  available  for such  purpose,  nevertheless  be
payable on such subsequent Quarterly Dividend Payment Date.

         (C) Dividends  shall begin to accrue and be  cumulative on  outstanding
shares of Junior  Preferred Stock from the Quarterly  Dividend Payment Date next
preceding the date of issue of such shares of Junior Preferred Stock, unless the
date of issue of such shares is prior to the record date for the first Quarterly
Dividend  Payment  Date,  in which case  dividends on such shares shall begin to
accrue from the date of issue of such  shares,  or unless the date of issue is a
Quarterly  Dividend  Payment  Date or is a date  after the  record  date for the
determination of holders of shares of Junior Preferred Stock entitled to receive
a quarterly  dividend and before such Quarterly Dividend Payment Date, in either
of which events such dividends shall begin to accrue and be cumulative from such
Quarterly  Dividend  Payment Date.  Accrued but unpaid  dividends shall not bear
interest.  Dividends paid on the shares of Junior  Preferred  Stock in an amount
less than the total amount of such  dividends at the time accrued and payable on
such shares shall be allocated pro rata on a share-by-share basis among all such
shares at the time outstanding. The Board of Directors may fix a record date for
the


                                       -2-


<PAGE>

determination of holders of shares of Junior Preferred Stock entitled to receive
payment of a dividend or distribution declared thereon,  which record date shall
be no more than 30 days prior to the date fixed for the payment thereof.

         Section 3. Voting  Rights.  The  holders of shares of Junior  Preferred
Stock shall have the following voting rights:

         (A) Each  share of Junior  Preferred  Stock  shall  entitle  the holder
thereof to a number of votes equal to the  Adjustment  Number (as adjusted  from
time to time pursuant to Section 2(A) hereof) on all matters submitted to a vote
of the stockholders of the Corporation.

         (B) Except as otherwise provided herein, in the Restated Certificate or
by-laws,  the  holders of shares of Junior  Preferred  Stock and the  holders of
shares of Common Stock shall vote together as one class on all matters submitted
to a vote of stockholders of the Corporation.

         (C) (i) If at any time dividends on any Junior Preferred Stock shall be
in arrears in an amount equal to six quarterly dividends thereon, the occurrence
of such  contingency  shall  mark the  beginning  of a period  (herein  called a
"default  period") that shall extend until such time when all accrued and unpaid
dividends  for all  previous  quarterly  dividend  periods  and for the  current
quarterly period on all shares of Junior Preferred Stock then outstanding  shall
have been  declared  and paid or set  apart for  payment.  During  each  default
period,  (1) the number of Directors shall be increased by two,  effective as of
the time of election of such Directors as herein  provided,  and (2) the holders
of Junior  Preferred  Stock and the holders of other  Preferred Stock upon which
these or like voting rights have been conferred and are exercisable (the "Voting
Preferred  Stock") with  dividends in arrears equal to six  quarterly  dividends
thereon,  voting as a class,  irrespective  of  series,  shall have the right to
elect such two Directors.

            (ii) During any default period,  such voting right of the holders of
Junior  Preferred  Stock may be exercised  initially at a special meeting called
pursuant to subparagraph  (iii) of this Section 3(C) or at any annual meeting of
stockholders,  and thereafter at annual meetings of stockholders,  provided that
such  voting  right  shall  not be  exercised  unless  the  holders  of at least
one-third in number of the shares of Voting Preferred Stock outstanding shall be
present in person or by proxy.  The absence of a quorum of the holders of Common
Stock shall not affect the exercise by the holders of Voting  Preferred Stock of
such voting right.

            (iii) Unless the holders of Voting Preferred Stock shall,  during an
existing  default  period,  have  previously  exercised  their  right  to  elect
Directors,  the Board of Directors may order, or any stockholder or stockholders
owning  in the  aggregate  not less  than 10% of the  total  number of shares of
Voting Preferred Stock  outstanding,  irrespective of series,  may request,  the
calling of a special  meeting of the holders of Voting  Preferred  Stock,  which
meeting shall  thereupon be called by the  Chairman,  the  President,  the Chief
Executive  Officer,  any Vice  President or the  Secretary  of the  Corporation.
Notice of such  meeting  and of any annual  meeting  at which  holders of Voting
Preferred  Stock are entitled to vote pursuant to this paragraph  (C)(iii) shall
be given to each holder of record of Voting Preferred Stock by mailing a copy of
such notice to him at his last address as the same appears on the books of the


                                       -3-

<PAGE>

Corporation.  Such  meeting  shall be called for a time not earlier than 10 days
and not later than 60 days  after  such  order or request  or, in default of the
calling of such meeting within 60 days after such order or request, such meeting
may be called on similar notice by any stockholder or stockholders owning in the
aggregate  not less than 10% of the total  number of shares of Voting  Preferred
Stock outstanding. Notwithstanding the provisions of this paragraph (C)(iii), no
such  special  meeting  shall  be  called  during  the  period  within  60  days
immediately  preceding  the  date  fixed  for the  next  annual  meeting  of the
stockholders.

            (iv) In any default  period,  after the holders of Voting  Preferred
Stock shall have exercised their right to elect Directors voting as a class, (x)
the Directors so elected by the holders of Voting Preferred Stock shall continue
in office  until their  successors  shall have been  elected by such  holders or
until the expiration of the default period,  and (y) any vacancy in the Board of
Directors  may be  filled  by  vote of a  majority  of the  remaining  Directors
theretofore  elected  by the  holders  of the class or  classes  of stock  which
elected the Director whose office shall have become  vacant.  References in this
paragraph  (C) to  Directors  elected by the  holders of a  particular  class or
classes of stock  shall  include  Directors  elected by such  Directors  to fill
vacancies as provided in clause (y) of the foregoing sentence.

            (v)  Immediately  upon the expiration of a default  period,  (x) the
right of the  holders of Voting  Preferred  Stock as a class to elect  Directors
shall  cease,  (y) the term of any  Directors  elected by the  holders of Voting
Preferred Stock as a class shall terminate and (z) the number of Directors shall
be such number as may be provided for in or pursuant to the Restated Certificate
or By-Laws  irrespective of any increase made pursuant to the provisions of this
paragraph (C) (such number being subject,  however,  to change thereafter in any
manner provided by law or in the Restated Certificate or By-Laws). Any vacancies
in the Board of Directors  effected by the  provisions of clauses (y) and (z) in
the preceding sentence may be filled by a majority of the remaining Directors.

         (D) Except as set forth herein, holders of Junior Preferred Stock shall
have no special voting rights and their consent shall not be required (except to
the extent they are  entitled to vote with  holders of Common Stock as set forth
herein) for taking any corporate action.

         Section 4. Certain Restrictions.

         (A) Whenever  quarterly  dividends or other dividends or  distributions
payable on the Junior  Preferred  Stock as provided in Section 2 are in arrears,
thereafter and until all accrued and unpaid dividends and distributions, whether
or not declared, on shares of Junior Preferred Stock outstanding shall have been
paid in full, the Corporation shall not:

            (i) declare or pay dividends on, or make any other distributions on,
any shares of stock ranking junior (either as to dividends or upon  liquidation,
dissolution or winding up) to the Junior Preferred Stock;

            (ii) declare or pay dividends on or make any other  distributions on
any  shares  of  stock  ranking  on a parity  (either  as to  dividends  or upon
liquidation,  dissolution or winding up) with the Junior Preferred Stock, except
dividends paid ratably on the Junior


                                       -4-


<PAGE>



Preferred  Stock and all such parity stock on which  dividends are payable or in
arrears in  proportion  to the total  amounts  to which the  holders of all such
shares are then entitled;

            (iii)  redeem or purchase  or  otherwise  acquire for  consideration
shares of any stock ranking junior (either as to dividends or upon  liquidation,
dissolution  or winding up) to the Junior  Preferred  Stock,  provided  that the
Corporation may at any time redeem,  purchase or otherwise acquire shares of any
such junior stock in exchange for shares of any stock of the Corporation ranking
junior (as to dividends and upon dissolution,  liquidation or winding up) to the
Junior Preferred Stock; or

            (iv) purchase or otherwise  acquire for  consideration any shares of
Junior  Preferred  Stock,  or any shares of stock  ranking on a parity  with the
Junior  Preferred  Stock,  except in  accordance  with a purchase  offer made in
writing or by  publication  (as  determined  by the Board of  Directors)  to all
holders  of such  shares  upon  such  terms  as the  Board of  Directors,  after
consideration of the respective  annual dividend rates and other relative rights
and  preferences of the respective  series and classes,  shall determine in good
faith will result in fair and equitable treatment among the respective series or
classes.

         (B) The Corporation  shall not permit any subsidiary of the Corporation
to purchase or otherwise  acquire for  consideration  any shares of stock of the
Corporation unless the Corporation could, under paragraph (A) of this Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

         Section 5.  Reacquired  Shares.  Any shares of Junior  Preferred  Stock
purchased  or otherwise  acquired by the  Corporation  in any manner  whatsoever
shall be retired and canceled promptly after the acquisition  thereof.  All such
shares shall upon their  cancellation  become  authorized but unissued shares of
Preferred Stock,  without serial  designation,  and may be reissued as part of a
new series of Preferred  Stock to be created by resolution or resolutions of the
Board of Directors,  subject to the conditions and  restrictions on issuance set
forth herein.

         Section  6.   Liquidation,   Dissolution   or  Winding   Up.  Upon  any
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made (A) to the  holders  of Common  Stock or shares of other  stock  ranking
junior (either as to dividends or upon  liquidation,  dissolution or winding up)
to the Junior  Preferred Stock unless,  prior thereto,  the holders of shares of
Junior  Preferred  Stock shall have  received  per share an amount  equal to the
Adjustment  Number  times  $1.00,  plus an amount  equal to  accrued  and unpaid
dividends and  distributions  thereon,  whether or not declared,  to the date of
such payment,  or (B) to the holders of stock ranking on a parity  (either as to
dividends  or upon  liquidation,  dissolution  or  winding  up) with the  Junior
Preferred Stock, except distributions made ratably on the Junior Preferred Stock
and all other such parity stock in  proportion to the total amounts to which the
holders of all such shares are entitled upon such  liquidation,  dissolution  or
winding up.

         Section 7.  Consolidation,  Merger,  etc. In case the Corporation shall
enter into any consolidation,  merger, combination or other transaction in which
the shares of Common  Stock are  exchanged  for or changed  into other  stock or
securities,  cash and/or any other property, then in any such case the shares of
Junior  Preferred  Stock then  outstanding  shall at the same time be  similarly
exchanged or changed in an amount per share equal to the Adjustment


                                       -5-


<PAGE>

Number times the aggregate  amount of stock,  securities,  cash and/or any other
property  (payable  in kind),  as the case may be,  into which or for which each
share of Common Stock is changed or exchanged.

         Section 8. No Redemption.  The shares of Junior  Preferred  Stock shall
not be redeemable.

         Section 9. Amendment.  The Restated Certificate shall not be amended in
any manner which would  materially  alter or change the powers,  preferences  or
special  rights of the Junior  Preferred  Stock so as to affect  them  adversely
without the  affirmative  vote of the holders of two-thirds  of the  outstanding
shares of Junior Preferred Stock, voting together as a single class.

         Section 10. Fractional  Shares.  At the Corporation's  sole discretion,
Junior Preferred Stock may be issued in fractions of a share which shall entitle
the holder, in proportion to such holder's fractional shares, to exercise voting
rights, receive dividends,  participate in distributions and to have the benefit
of all other rights of holders of Junior Preferred Stock.

         IN WITNESS WHEREOF, I have executed and subscribed this Certificate and
do affirm the  foregoing as true under the penalties of perjury this 18th day of
July, 1997.

                                               /s/ Joel Friedman
                                               ---------------------------------
                                               Name:  Joel Friedman
                                               Title: Chairman


                                       -6-


<PAGE>



                                                                       Exhibit B

                          [Form of Rights Certificate]

Certificate No. R-                                               ________ Rights

NOT  EXERCISABLE  AFTER  JULY 17,  2007 OR EARLIER  IF NOTICE OF  REDEMPTION  OR
EXCHANGE IS GIVEN.  THE RIGHTS ARE SUBJECT TO  REDEMPTION  OR  EXCHANGE,  AT THE
OPTION OF THE  COMPANY,  ON THE TERMS SET  FORTH IN THE  RIGHTS  AGREEMENT.  THE
RIGHTS  REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY
A PERSON WHO WAS OR BECAME AN  ACQUIRING  PERSON OR AN ASSOCIATE OR AFFILIATE OF
AN  ACQUIRING  PERSON  (AS SUCH  TERMS ARE  DEFINED  IN THE  RIGHTS  AGREEMENT).
ACCORDINGLY,  THIS  RIGHTS  CERTIFICATE  AND THE RIGHTS  REPRESENTED  HEREBY MAY
BECOME  NULL AND VOID IN THE  CIRCUMSTANCES  SPECIFIED  IN  SECTION  7(e) OF THE
RIGHTS AGREEMENT.

                               Rights Certificate

                              3-D GEOPHYSICAL, INC.

         This certifies that  _________________________,  or registered assigns,
is the registered  owner of the number of Rights set forth above,  each of which
entitles the owner thereof,  subject to the terms,  provisions and conditions of
the  Rights  Agreement  dated as of July  [__],  1997 (the  "Rights  Agreement")
between 3-D  Geophysical,  Inc., a Delaware  corporation  (the  "Company"),  and
American Securities  Transfer & Trust, Inc. (the "Rights Agent"),  unless notice
of redemption shall have been previously given by the Company,  to purchase from
the Company at any time after the Distribution  Date (as such term is defined in
the Rights Agreement) and prior to 5:00 P.M., Denver,  Colorado time on July 17,
2007, at the  principal  corporate  trust office of the Rights Agent,  or at the
office of its successor as Rights Agent, one  one-thousandth of a fully paid and
nonassessable share of the Junior Participating Preferred Stock, par value $0.01
per share,  of the Company (the  "Preferred  Stock"),  at a purchase  price (the
"Purchase Price") of $50.00 per one one-thousandth  share, upon presentation and
surrender of this Rights  Certificate with the Form of Election to Purchase duly
executed.  The Purchase  Price may be paid in cash or by certified bank check or
bank draft payable to the order of the Company.

         As provided in the Rights Agreement,  the Purchase Price and the number
of shares of Preferred Stock or other  securities,  cash or other property which
may be  purchased  upon the  exercise  of the Rights  evidenced  by this  Rights
Certificate  are subject to  modification  and adjustment  upon the happening of
certain events.

         If the Rights evidenced by this Rights Certificate are or were formerly
beneficially  owned,  on or after the earlier of the  Distribution  Date and the
Stock Acquisition Date, by (i) an Acquiring Person or any Associate or Affiliate
of an Acquiring Person, or (ii) a direct or indirect  transferee of an Acquiring
Person (or of any Associate or Affiliate of an Acquiring


<PAGE>

Person),  such Rights may become null and void, in which event the holder of any
such Right  (including  any  subsequent  holder)  shall not have any rights with
respect to such Right.

         This Rights Certificate is subject to all of the terms,  provisions and
conditions of the Rights Agreement,  which terms,  provisions and conditions are
hereby  incorporated  herein by  reference  and made a part  hereof and to which
Rights Agreement  reference is hereby made for a full description of the rights,
limitations  of rights,  obligations,  duties and  immunities  hereunder  of the
Rights  Agent,  the  Company  and  the  holders  of  the  Rights   Certificates.
Capitalized  terms used but not  defined  in this  Rights  Certificate  that are
defined in the Rights Agreement shall have the same meanings ascribed to them in
the  Rights  Agreement.  Copies  of the  Rights  Agreement  are on  file  at the
principal executive offices of the Company and the above-mentioned office of the
Rights Agent.

         This Rights  Certificate,  with or without  other Rights  Certificates,
upon surrender at the principal  corporate trust office of the Rights Agent, may
be exchanged for another Rights Certificate or Rights Certificates of like tenor
and date  evidencing  Rights  entitling the holder to purchase a like  aggregate
number of shares of Preferred Stock or other property as the Rights evidenced by
the Rights Certificate or Rights Certificates  surrendered  entitled such holder
to purchase.  If this Rights  Certificate shall be exercised in part, the holder
shall be entitled to receive upon surrender hereof another Rights Certificate or
Rights Certificates for the number of whole Rights not exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate (a) may be redeemed by the Board of Directors of the Company
at its option at a redemption  price of $.01 per Right,  subject to  adjustment,
payable, at the election of the Company, in cash or shares (including fractional
shares) of Common  Stock or such other  consideration  as the Board of Directors
may  determine  at any time prior to the  earlier  of (i) 12:00 a.m.  (midnight,
Denver,  Colorado time) on the Stock  Acquisition  Date, and (ii) the Expiration
Date, or (b) may be exchanged after the Stock  Acquisition  Date by the Board of
Directors  of the  Company  at its  option in whole or in part for shares of the
Company's Common Stock or other Company securities.

         No fractional  shares of Preferred Stock (other than fractions that are
integral  multiples of one  one-thousandth of a share of Preferred Stock,  which
may, at the election of the Company,  be evidenced by  depository  receipts) are
required to be issued upon the exercise of any Right or Rights evidenced hereby,
but in lieu thereof the Company may elect to (i) evidence  fractional  shares by
depositary  receipts,  (ii) issue scrip or warrants in  registered  form (either
represented by a certificate or  uncertificated)  or in bearer form (represented
by a  certificate)  which shall  entitle the holder to receive a full share upon
the surrender of such scrip or warrants  aggregating a full share, or (iii) make
a cash payment, as provided in the Rights Agreement.

         No holder of this  Rights  Certificate,  as such,  shall be entitled to
vote or to receive  dividends  on, or shall be deemed for any purpose the holder
of,  Preferred Stock or of any other  securities,  cash or property which may at
any time be issuable on the exercise hereof, nor shall anything contained in the
Rights  Agreement  or this  Certificate  be  construed to confer upon the holder
hereof,  as such, any of the rights of a stockholder of the Company,  including,
without limitation,  any right to vote for the election of directors or upon any
matter submitted to stock-


                                       -2-


<PAGE>

holders at any meeting thereof,  or to give or withhold consent to any corporate
action, or to receive notice of meetings or other actions affecting stockholders
(except  as  provided  in the Rights  Agreement),  or to  receive  dividends  or
subscription  rights,  or to institute,  as a holder of Preferred Stock or other
securities   issuable  on  the  exercise  of  the  Rights  represented  by  this
Certificate,  any derivative action, or otherwise,  until and only to the extent
the  Right or  Rights  evidenced  by this  Rights  Certificate  shall  have been
exercised as provided in the Rights Agreement.

         This  Rights  Certificate  shall  not be  valid or  obligatory  for any
purpose until it shall have been countersigned by the Rights Agent.

         WITNESS the facsimile  signature of the proper  officers of the Company
and its corporate seal. Dated as of July __, 1997.


                                             3-D GEOPHYSICAL, INC.


                                             By: ______________________________
                                                    Name:
                                                    Title:


Countersigned:


[------------]


By: __________________________
    Authorized Officer

                  [Form of Reverse Side of Rights Certificate]


                                       -3-


<PAGE>



                               FORM OF ASSIGNMENT

                    (To be executed by the  registered  holder if such
                    holder    desires   to    transfer    the   Rights
                    Certificate.)


         FOR VALUE  RECEIVED  the  undersigned  ________________  hereby  sells,
assigns and transfers unto _____________________________________________________
________________________________________________________________________________
(Please print name and address of transferee) _________ Rights evidenced by this
Rights  Certificate,  together with all right,  title and interest therein,  and
does hereby irrevocably constitute and appoint  ________________________  with a
power  of  Attorney  to  transfer  the  said  Rights  and a  Rights  Certificate
evidencing such Rights on the books of 3-D Geophysical, Inc., with full power of
substitution.

         A new Rights Certificate  evidencing the remaining balance,  if any, of
such Rights not hereby  sold,  assigned and  transferred  shall be mailed to and
registered in the name of the undersigned  unless such person requests that such
Rights  Certificate be registered in the name of and mailed to (complete only if
a Rights  Certificate  evidencing  any  remaining  balance  of  Rights  is to be
registered in a name other than the name of the undersigned):

Please insert Social Security or
other identifying number of transferee: _________________________
- -----------------------------------------------------------------
                       (Please print name and address)
- -----------------------------------------------------------------


                                       -4-


<PAGE>

                                   Certificate

         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

         (1) this Rights  Certificate or any Rights  evidenced  hereby __ are __
are not being sold,  assigned and transferred by or on behalf of a Person who is
or was an Acquiring  Person or an Affiliate or Associate of an Acquiring  Person
(as such terms are defined in the Rights Agreement); and

         (2) after due inquiry and to the best knowledge of the undersigned, the
undersigned __ did __did not acquire any of the Rights  evidenced by this Rights
Certificate from any Person who is or was an Acquiring Person or an Affiliate or
Associate of an Acquiring Person.

Dated:  ___________________________         ____________________________________
                                    Signature

Signature Guaranteed:

Signatures  must  be  guaranteed  by  an  eligible  guarantor  institution  with
membership in a recognized  signature guarantee medallion program as approved by
the Stock Transfer Association.


                                       -5-


<PAGE>

                                     NOTICE

         The signature on the foregoing  Form of Assignment  must  correspond to
the  name as  written  upon  the  face  of  this  Rights  Certificate  in  every
particular, without alteration or enlargement or any change whatsoever.

         In  the  event  the  certification  set  forth  above  in the  Form  of
Assignment is not completed,  the Company will deem the beneficial  owner of the
Rights  evidenced  by this Right  Certificate  to be an  Acquiring  Person or an
Affiliate or Associate  thereof (as defined in the Rights Agreement) and, in the
case of an assignment or other transfer of this Rights Certificate or any Rights
evidenced hereby,  will affix a legend to that effect on any Rights  Certificate
issued in whole or partial exchange for this Rights Certificate.


                                       -6-


<PAGE>

                          FORM OF ELECTION TO PURCHASE

                  (To be executed if holder desires to exercise
               the Rights represented by this Rights Certificate)

To:      3-D Geophysical, Inc.

         The    undersigned    hereby    irrevocably    elects    to    exercise
____________________  Rights  represented by this Rights Certificate to purchase
the  shares  of  Preferred  Stock or other  securities,  cash or other  property
issuable  upon the exercise of such Rights and requests  that  certificates  for
such shares or other securities be issued in the name of, and such cash or other
property be paid to:

Please insert social security
or other identifying number: ________________________


- -----------------------------------------------------------------
                                          (Please print name and address)

- -----------------------------------------------------------------

                  A new Rights Certificate  evidencing the remaining balance, if
any, of such Rights not hereby  exercised  shall be mailed to and  registered in
the name of the  undersigned  unless  such  person  requests  that  such  Rights
Certificate  be registered in the name of and mailed to (complete only if Rights
Certificate  evidencing any remaining balance of Rights is to be registered in a
name other than the name of the undersigned):

Please insert social security
or other identifying number: ________________________

- ----------------------------------------------------------------------
                         (Please print name and address)

- ----------------------------------------------------------------------


                                       -7-


<PAGE>

                                   Certificate


         The  undersigned  hereby  certifies by checking the  appropriate  boxes
that:

         (1) the Rights  evidenced  by this Rights  Certificate  __are __are not
being exercised by or on behalf of a Person who is or was an Acquiring Person or
an Affiliate  or Associate of an Acquiring  Person (as such terms are defined in
the Rights Agreement); and

         (2) after due inquiry and to the best knowledge of the undersigned, the
undersigned  __ did __ did not  acquire  the  Rights  evidenced  by this  Rights
Certificate from any Person who is or was an Acquiring Person or an Affiliate or
Associate of an Acquiring Person.

Dated:  __________________________          __________________________________
                                                          Signature

Signature Guaranteed:

Signatures  must  be  guaranteed  by  an  eligible  guarantor  institution  with
membership in a recognized  signature guarantee medallion program as approved by
the Stock Transfer Association.


                                       -8-


<PAGE>

                                     NOTICE


         The  signature  on the  foregoing  Form of Election  to  Purchase  must
correspond  to the name as written upon the face of this Rights  Certificate  in
every particular, without alteration or enlargement or any change whatsoever.

         In the event the  certification set forth above in the Form of Election
to Purchase is not completed,  the Company will deem the beneficial owner of the
Rights  evidenced by this Rights  Certificate  to be an  Acquiring  Person or an
Affiliate or Associate  thereof (as defined in the Rights Agreement) and, in the
case of an assignment or other transfer of this Rights Certificate or any Rights
evidenced hereby,  will affix a legend to that effect on any Rights  Certificate
issued in whole or partial exchange for this Rights Certificate.


                                       -9-


<PAGE>


                                                                       Exhibit C


                          SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED SHARES


         On July 17, 1997, the Board of Directors of 3-D Geophysical,  Inc. (the
"Company")  authorized  the issuance of one preferred  share  purchase  right (a
"Right") for each  outstanding  share of common stock, par value $0.01 per share
(the  "Common  Stock"),  of the  Company.  The  distribution  is  payable to the
stockholders  of record at the close of business  on July 18, 1997 (the  "Record
Date"), which is also the payment date, and with respect to all shares of Common
Stock that become outstanding after the Record Date and prior to the earliest of
the  Distribution  Date (as defined  below),  the redemption of the Rights,  the
exchange of the Rights,  or the expiration of the Rights (and, in certain cases,
following the Distribution  Date).  Each Right entitles the registered holder to
purchase  from  the  Company  one   one-thousandth   of  a  share  of  a  Junior
Participating  Preferred  Stock,  par value $0.01 per share, of the Company (the
"Preferred  Stock") at an exercise price of $50.00 per one  one-thousandth  of a
share of Preferred  Stock (the "Purchase  Price"),  subject to  adjustment.  The
description and terms of the Rights,  and certain defined terms used herein, are
set forth in a Rights Agreement (the "Rights Agreement") between the Company and
American Securities Transfer & Trust, Inc. as Rights Agent (the "Rights Agent"),
dated as of July 17, 1997.

         Until  the  earlier  to occur of (i) the  expiration  of the  Company's
redemption  rights on the date of public disclosure that a person or group other
than certain  Exempt  Persons (an  "Acquiring  Person"),  together  with persons
affiliated or associated  with such Acquiring  Person (other than those that are
Exempt  Persons),  has  acquired,  or obtained the right to acquire,  beneficial
ownership  of 15% or more (20% or more in the case of  certain  acquisitions  by
institutional investors) of the outstanding Common Stock (the "Stock Acquisition
Date") and (ii) the tenth  business day after the date (the "Tender Offer Date")
of commencement or public  disclosure of an intention to commence a tender offer
or exchange offer by a person other than an Exempt Person if, upon  consummation
of the offer, such person could acquire  beneficial  ownership of 15% or more of
the  outstanding  Common  Stock  (the  earlier of such  dates  being  called the
"Distribution  Date"), the Rights will be evidenced by Common Stock certificates
and not by separate certificates.  The Rights Agreement provides that, until the
Distribution Date (or earlier redemption, exchange or expiration of the Rights),
the Rights will be  transferred  with and only with the Common Stock.  Until the
Distribution Date (or earlier redemption, exchange or expiration of the Rights),
new Common Stock  certificates  issued after July 18, 1997, upon transfer or new
issuance of shares of Common Stock,  will contain a notation  incorporating  the
Rights  Agreement  by  reference.   Until  the  Distribution  Date  (or  earlier
redemption,  exchange or expiration of the Rights) the surrender for transfer of
any certificate for Common Stock will also constitute the transfer of the Rights
associated  with the Common Stock  represented by such  certificate.  As soon as
practicable  following the Distribution Date, separate  certificates  evidencing
the  Rights  ("Right  Certificates")  will be mailed to holders of record of the
Common  Stock as of the close of business  on the  Distribution  Date,  and such
separate Right Certificates alone will evidence the Rights.


                                       -1-


<PAGE>


         The Rights will first become  exercisable on the Stock Acquisition Date
(unless sooner  redeemed or  exchanged).  The Rights will expire at the close of
business on July 17, 2007 (the  "Expiration  Date"),  unless earlier redeemed or
exchanged by the Company as described below.

         The Purchase Price payable, and the number of shares of Preferred Stock
or other  securities,  cash or other  property  issuable,  upon  exercise of the
Rights are subject to  adjustment  from time to time to prevent  dilution (i) in
the event of a stock dividend or distribution on, or a subdivision,  combination
or  reclassification  of, the Preferred Stock, (ii) upon the grant to holders of
the  Preferred  Stock of certain  rights,  options or warrants to subscribe  for
Preferred Stock or securities  convertible  into or  exchangeable  for Preferred
Stock at less than the current market price of the Preferred Stock or (iii) upon
the  distribution to holders of the Preferred Stock of evidences of indebtedness
or assets  (excluding  regular  periodic  cash  dividends,  subject  to  certain
limitations  set forth in the Rights  Agreement)  or of  subscription  rights or
warrants (other than those referred to above).  In addition,  the Purchase Price
payable, and the number of shares of Preferred Stock purchasable, on exercise of
a Right is  subject  to  adjustment  in the event  that the  Company  should (i)
declare or pay any dividend on the Common Stock  payable in Common Stock or (ii)
effect a subdivision or combination of the Common Stock into a different  number
of shares of Common Stock.

         With certain  exceptions,  no adjustment in the Purchase  Price will be
required until  cumulative  adjustments  require an adjustment of at least 1% in
such  Purchase  Price.  No fractional  shares of Preferred  Stock will be issued
(other than fractions which are integral  multiples of one  one-thousandth  of a
share of  Preferred  Stock,  which  may,  at the  election  of the  Company,  be
evidenced by depositary  receipts)  and in lieu  thereof,  an adjustment in cash
will be made  based  on the  market  price  of the  Preferred  Stock on the last
trading date prior to the date of exercise.

         In the event that there is public  disclosure that an Acquiring  Person
has become such,  proper provision would be made so that each holder of a Right,
other than Rights that are or were  beneficially  owned by the Acquiring  Person
and certain  related  persons and  transferees  (which will thereafter be void),
will thereafter have the right to receive upon exercise that number of shares of
Common  Stock (or other  securities)  having at the time of such  transaction  a
market value of two times the  Purchase  Price of the Right.  In  addition,  the
Company's  Board of Directors  has the option of  exchanging  all or part of the
Rights  (excluding void Rights) for an equal number of shares of Common Stock in
the manner described in the Rights Agreement.

         In the event that,  at any time  following  public  disclosure  that an
Acquiring  Person has become such,  the Company is involved in a merger or other
business  combination  transaction  where  the  Company  is  not  the  surviving
corporation  or  where  the  Common  Stock  is  changed  or  exchanged  or  in a
transaction or transactions as a result of which 50% or more of its consolidated
assets or earning power are sold,  proper  provision  would be made so that each
holder of a Right (other than such Acquiring  Person and certain related persons
or transferees)  shall  thereafter have the right to receive,  upon the exercise
thereof at the then current  Purchase Price of the Right,  that number of shares
of common stock of the acquiring


                                       -2-


<PAGE>

company  or the  Company,  as the  case  may  be,  which  at the  time  of  such
transaction  would have a market  value of two times the  Purchase  Price of the
Right.

         At any time prior to public  disclosure  that an  Acquiring  Person has
become  such,  the Board of  Directors  of the  Company may redeem the Rights in
whole, but not in part, at a price of $.01 per Right (the  "Redemption  Price"),
payable in cash,  shares  (including  fractional  shares) of Common Stock or any
other form of consideration deemed appropriate by the Board of Directors.

         At any time prior to the  Distribution  Date, the Board of Directors of
the Company may amend or supplement the Rights Agreement without the approval of
the Rights  Agent or any holder of the Rights.  From and after the  Distribution
Date,  the  Board of  Directors  of the  Company  may  generally  only  amend or
supplement the Rights  Agreement  without such approval only to cure  ambiguity,
correct or  supplement  any  defective  or  inconsistent  provision or change or
supplement the Rights  Agreement in any manner which shall not adversely  affect
the interests of the holders of the Rights (other than an Acquiring Person or an
affiliate or  associate  thereof).  Immediately  upon the action of the Board of
Directors  providing  for  any  amendment  or  supplement,   such  amendment  or
supplement will be deemed effective.

         The Preferred Stock purchasable upon exercise of the Rights will not be
redeemable.  Each  share  of  Preferred  Stock  will be  entitled  to a  minimum
preferential  quarterly dividend payment,  when, as and if declared by the Board
of Directors  of the  Company,  equal to the greater of $100 per share and 1,000
times  the  dividend  declared  per  share  of  Common  Stock.  In the  event of
liquidation,  the  holders  of  the  Preferred  Stock  will  be  entitled  to  a
preferential  liquidation  payment  equal to $1,000 per share,  plus accrued and
unpaid dividends. Each share of Preferred Stock will have 1,000 votes per share,
voting together with the Common Stock. In the event of any merger, consolidation
or other  transaction  in which the  Common  Stock is  exchanged,  each share of
Preferred  Stock will be entitled to receive 1,000 times the amount received per
share of Common Stock.

         Exempt  Persons  include (i) the Company,  (ii) any  Subsidiary  of the
Company,  (iii) any employee benefit plan of the Company or of any Subsidiary of
the Company,  and (iv) any Person  holding  Common  Stock for any such  employee
benefit plan or for employees of the Company or of any Subsidiary of the Company
pursuant to the terms of any such employee benefit plan.

         The Rights may have certain anti-takeover effects. The Rights may cause
substantial  dilution  to a person or group  (except  as  described  above  with
respect to an Exempt  Person) that  attempts to acquire the Company on terms not
approved by the Board.  The Rights should not interfere with any merger or other
business  combination  approved  by the Board of  Directors  prior to the time a
person or group other than an Exempt Person has acquired beneficial ownership of
15% or more of the  Common  Stock,  because  until  such  time  the  Rights  may
generally be redeemed by the Company at $.01 per Right.


                                       -3-


<PAGE>

         Until a Right is exercised,  the holder thereof,  as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive dividends.

         A copy of the Rights  Agreement has been filed with the  Securities and
Exchange Commission as an Exhibit to an Application for Registration on Form 8-A
and as an Exhibit  to the  Company's  Current  Report on Form 8-K. A copy of the
Rights  Agreement  is available  free of charge from the  Company.  This summary
description  of the Rights does not purport to be complete  and is  qualified in
its entirety by reference to the Rights Agreement,  which is hereby incorporated
herein by reference.


                                       -4-




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