- /

CANADIAN JOURNAL OF EXPLORATION GEOPHYSICS VOL. 23, NO. 2 IItCtMlitK 1’11311

A practical approach to parameter selection for modelling with the reflectivity method, Z. I I.~;n.,l, L1.I. f:,rr/if <II~ M. K. Slmiiw 101

Elastic-wave and related properties of c&tic rocks from the Athabasca basin, western Canada, M.S. Kiq, MR. .St;~uffrr; H./.P ):~ng ,!mi 7. H.ljm/ 11 0

Zero-offset refkction modelling with spatial wave/efs, A. N,lti/iy,l/ 11 7

Application of the surface rrflrction seismic method to shallow coal exploration in the Plains of Alberta, H. V Lycmky <IIIC/ D.C L.IM’IOII 124

Exploration for porosity in carbonates: A synthetic-based study, D. F~r‘lser <IN/ s. /Jill 141

A seismic perspective on the Panny and Trout fields of north-central Alberta, N.L. Anricr~sor~, K./. Unn~w~ ,~rri K.C Hinds 154

Geophysical aspects of Wabamun salt distribution in southern Alberta, N.L. Andcr~sm, K.1. Urmm .111d ICC:. Hinds 166

A Fourier transform minimiration technique for interpreting magnetic anomalies of some two-dimensional bodies, 0.[1 cum I 79

Total magnetic field reduction -the pole or equator? A model study, 5. /din 185

Corporate Members 93 & 94 Editor’s page Advertisers’ index 95 Articles Journal staff & regulations 97 Authors’ biographies Instructions to authors 98 Professional directory CSEC Executive 99

100 101 193

xv

CANADIAN SOCIETY of EXPLORATION GEOPHYSICISTS ISSN 008-5022

1988 CSEG CORPORATE MEMBERS

ACE EXPLOSIVES (1984) LTD. AIRBORNE GEOPHYSICAL SURVEYS LTD. ALBERTA ENERGY COMPANY LTD. AMERADA MINERALS CORP. AMOCO CANADA PETROLEUM CO. LTD. AQUA-TERRA CONSULTANTS LTD.

BP CANADA INC. BERTRAM DRILLING LTD. BOW VALLEY INDUSTRIES LTD. BUMPER DEVELOPMENT CORP. LTD

CGG GEOPHYSICS CANADA LTD. C-I-L INC. CANADA NORTHWEST ENERGY LTD. CANADIAN HUNTER EXPLORATION LTD. CANADIAN OCCIDENTAL PETROLEUM LTD. CANTERRA ENERGY LTD. CHEVRON CANADA RESOURCES LTD. CHIEFTAIN DEVELOPMENT CO. LTD. COREXCAL INC.

DATASPAN TECHNOLOGY LTD. DIGLTECH INFORMATION SERVICES DOME PETROLEUM

ENCOR ENERGY CORPORATION INC. ENERTEC GEOPHYSICAL SERVICES ESSO RESOURCES CANADA LTD.

FALCON DATA LTD. FORMAT RESOURCE CORP. FRONTIER DATA SERVICES

GALE HORIZON LIMITED GECO GEOPHYSICAL CANADA LTD. CEO-PHYSI-CON CO. LTD. GE0 SPACE CANADA INC. GEO-TERREX LIMITED GEO-TRADES GEO-X SYSTEMS LTD. GEOPHYSICAL MICRO COMPUTER APPLICATIONS GEOPHYSICAL SERVICE INC. GEOSIGNAL EXPLORATION LTD. GEOSOIJRCE INC. GRANT GEOPHYSICAL LTD. GULF CANADA CORFORATlON

HUSKY OIL OPERATIONS LTD.

ICG RESOURCES LTD. LT.&A. INVERSE THEORY & APPLICATION INDEL-DAVIS LTD. INPUT/OUTPUT, INC.

J.M. HUBER CORPORATION JRS EXPLORATION CO, LTD.

KARON RESOURCES INC. KARY DATA CONSULTANTS LTD. KELMAN SEISMIC PROCESSING LTD.

LANDMARK GRAPHICS CANADA LTD. LASMO EXPLORATION (CANADA) LTD

93

MARK PRODUCTS LTD. MOBIL OIL CANADA LTD. MORRISON PETROLEUMS LTD. MURPHY OIL COMPANY LTD. NICHOLSON COPY CENTRE LTD. NORCANA RESOURCE SERVICES LTD. NORCEN ENERGY RESOURCES LTD. NORTH CANADIAN OILS LTD. NOVALTA RESOURCES LTD. NUMAC OIL & GAS LTD.

OAKWOOD PETROLEUMS LTD. OCELOT INDUSTRIES LTD.

PANCANADIAN PETROLEUM LTD. PEMBINA RESOURCES LIMITED PENNZOIL PETROLEUMS LTD. PETRO-CANADA PETROVENTURES RESOURCES LTD. PETTY-RAY GEOPHYSICAL CANADA PIONEER EXPLORATION INC. PLACER CEGO PETROLEUM PRIME EXPLOSIVES II LTD. PROBE DATA MARKET LTD. PULSE X7

RENAISSANCE ENERGY LTD.

SCEPTRE RESOURCES LIMITED SEIS-PRO & CONSULTANTS LTD. SHELL CANADA LIMITED SIGMA EXPLORATIONS (1978) LTD. SONICS EXPLORATION LTD. SOURCEX SEISMIC LTD. STACS RECORD CENTRElDIV. BELL&HOWELL STAR TECHNOLOGIES CANADA SUNCOR INC. RESOURCES GROUP

TEKNICA RESOURCE DEVELOPMENT LTD. TEXACO CANADA RESOURCES LTD. TOTAL PETROLEUM CANADA TRITON CANADA RESOURCES LTD.

UNION PACIFIC UNOCAL CANADA LIMITED

VARIDATA SURVEYS LTD. VECTOR TECHNOLOGY LTD. VERITAS GEOPHYSICAL LTD. VERITAS SEISMIC (I 987) LTD VOYAGER ENERGY LTD.

WEGA-D GEOPHYSICAL LTD. WESTCOAST PETROLEUM LTD. WESTERN GEOPHYSICAL CANADA WESTERN GRAPHICS WESTERN SEISMIC EXCHANGE LTD.

94

CJEG ADVERTISERS’ INDEX

Canjay Exploration (1975) Ltd. ............................................................... “iii

Capilano Geophysical Ltd. ..................................................................... 1

Commonwealth Geophysical .................................................................. xii

CSEG-CSPG Atlas .............................................................................. viii

Ennsel ............................................................................................. vii

Geophysical Micro Computer Applications (Intn.) Ltd. ................................... ix

Gee Space ....................................................................................... II

Gee-X Systems Ltd. ...................................................................... inside front cover

Johnson & Herbert Construction Ltd. ........................................................ xvi

Kelman Seismic Processing .................................................................... XVI

Kestrel Data .......................................................................................... Xlll

Mark Products Ltd. ....................................................................... inside back cover

McAra Printing Limited ........................................................................ x

Norcana Resource Services Ltd. ............................................................... x

Northern Geoservices (1986) Ltd. ............................................................ “I

Petty-Ray Geophysical Canada ............................................................... iii

Pioneer Exploration Inc. ........................................................................ ix

Preferred Permit Services Ltd. ............................................................... ”

Prime Brokerage Consultants Ltd. ............................................................ xii

Pulse 87 .......................................................................................... vi

Sonics Exploration Ltd. ................................................................. outside front cover

Stats Record Centre ............................................................................. xi

Veritas Seismic Ltd. ............................................................................. iv

Western Geophysical Canada ...

.................................................................. Xl,,

Western Seismic Exchange Ltd. ............................................................... XI

95

CANADIAN JOURNAL OF

EXPLORATION GEOPHYSICS

VOL. 24, NO. 2 December 1966

EDITOR

R. JAMES BROWN, DEPT. OF GEOLOGY a GEOPHYSICS, UNIVERSITY OF CALGARY, CALGARY, ALBERTA TZN 1N4

BUSINESS EDITOR

JEFFREY T. KARV, KARY DATA CONSULTANTS LTD., 2060.633 -6TH AVE. S.W.. CALGARY, ALBERTA T2P 2Y6

PRODUCTION EDITOR

CECELIA FREY. 6226 TOUCHWOOD DRIVE N.W.. CALGARY, ALBERTA T2K 3L9

ASSOCIATE EDITORS

MeIvy” 6. Best Edward G. Lslancle Brian H. RUSSelI Bedford Inst. Of Oceanography HOmE Oil co. Ltd. Hampson~R”ssell Software Atlantic Geoscience centre 324 8,h Avenue 6.W. Services Ltd. P.O. 6°K 1006 Calgary, Alberta 615 3rd AVenue 6.W. Dartmo”th. Nova Scotia 62” 4A2 T2P 225 Calgary. Alberta T2P OG6

Harold w. DOSS0 WOOil M. MOO” Gordon F. west Dept. Of Physics Dept. Of Geoiogical Sciences Dept. Of Physics University Of Victoria University Of Manitoba u”iYer*ity Of Toronto Victoria. British Coiumbia Winnipeg. Manitoba T0l0”10. Ontario “8W 2Y2 R3T 2N2 Id56 ,A7

ZOh” Ha,nal JOIn w. Peirce A. E**tOn wren Dept. Of Geological Sciences Petro-canada 1°C. W&w. Oil 8 Gas Ltd. university Of SaSkatchewan P.C. 60X 2844 500.700 4th Avenue S.W. Saskatoon. Saskatchewan Calgary. Alberta Calgary. Alberta 67N owe T2P 3E3 T2P 3.M

01988, Canad,*” 9c.ciety 0‘ Exploration GeOphyPIClsts. World rights reserved. A”fhorilation lo photOCOpy i,eln* ,or persona, use. or the interna, or personal use Of specific clients. is granted by tile Canadian Society 0, Exploration Geophysicists, provided that the base tee 01 $3.00 per copy is paid directly 10 the Copyright Clearance center (CCC). Transactionai Reporting Service (TRS), 27 Ca”9ress Street, Salem, MA 01970. U~6.A. For thwe organirations that have been granted a photOCopy liC*nCe by CCC. a separate system 01 payment has been arranged~ The fee code for user* Of the TRS is 008~50221** $3.00 + 0.00.

S”b”,33io” 0‘ f.fan”~cr,p,~ is invited in all area% 019eophysics related 10 exploration. case histories are pallicularly welcome. Manuscripts Should be sent. in quadruplicate. directly 10 the Editor. Papers reCeiY*d by the Editor Will be deemed property Of ,hB C.S.E.G., ““less me reieasa Of me paper is granted in writing by the Editor. mere are no page charges but addifional costs 01 reproduction (e.g. for ColoUr tigures or fOk$ outs) are charged 10 a!Atlors.

,“str”Ctio”* for preparation Of the manuscript may be found in m3,l”Ctio”S 111 Authors” on page 4.

Short Not** ao.5 discussions 01 the papers published i” the .Jouroai ace welcome.

RBSponOibility for all ~tafement~ and scientific opinions made in the papers iies with their authors.

PreYio”s Issues Of the Journal are Sfili available. For prices contact Ihe secretary.

Claims ior nonreceipt Of Jo”rna, should be made within three mO”thS Of p”bliCafion.

Published by the Canadian Society of Exploration Geophysicists 601,206 - 7th Avenue SW. Calgary, Alberta T2P OW7

INSTRUCTIONS TO

Editorial standard. The CANADIAN JOURNAL OF EXPLORATION GEO- PHYSICS adopts as its editorial standard the “Instructions to Authors” of the Society of Exploration Geophysicists as published in GEOPHYSICS 52 (Jan. 1987). I-IO, and revised in GEOPHYSICS 53 (Jan. 19881, l-7. Some augmentation to the SEC Instructions is included below and in cases of ambiguity or conflict the present CSEG Instructions will take precedence.

Submission of manuscript. Submit an original and three copies, i.e., four copies in u/i of each manuscript, complete with figures, tables, ref- erences. and figure and table captions. The figures and tables submitted with the original manuscript should be the originals described below in 4. However, it is accept- able to submit four sets of figure/table copies, the origi- nals to be supplied upon acceptance of the paper. Manuscripts should be typed, double-spaced, on 21 t/z x 28 cm (8’12 x I I in) paper or on A4 (metric-format) paper.

Organization of manuscript. Title page. It should give the title, followed by the names. affiliations and full addresses of all the authors. Make the title of your paper as brief as possi- ble. The first word should be a significant one, suit- able for both classifying and indexing the paper. If your paper was given orally at a meeting, include a footnote specifying the name of the organization that held the meeting, where held, and the date of presenta- tion. Abstract. An abstract is not an introduction or a list of contents, but is rather a summary of the essential qual- ities, including the principal conclusions, of the paper. (See the SEG Instructions.) Every technical paper must be accompanied by an abstract of approximately 150 to 300 words. Short notes do not require abstracts. Headings. Normally three levels of headings should be used. First-order headings are centred and capitalized; second-order headings are positioned at the left-hand margin: third-order headings are indented, underlined or italicized, and followed by a dash. Numbering of secttons IS optional. Figures, tables and formulae. These should be compat- ible with a 21112 x 28 cm page size, two-column for- mat; i.e., they will be reproduced at either 9 cm (half- column) or 18 cm (full-column) width in vertical for- mat or 23 cm wide in horizontal format.

-Figures should be drafted at approximately twice the published size. Any clean figures of good contrast and overall quality are acceptable. However, original artwork, glossy photographs or PMTs. of manuscript- page size, are preferred.

- All figures must be clearly marked on the back with the figure number and author’s surname.

- Colour illustrations are encouraged where the use of colour is deemed essential. However, authors will be responsible for the additional costs of colour reproduction.

~ Foldouts should be avoided if possible but are encouraged where necessary. Again, however, authors will bc billed for any additional costs.

-Original materials will not be returned to authors

5.

4UTHORS

unless specifically requested at the time of submis- Sl”“.

- Tables, formulae and equations can be difficult to tvoeset and oroofread. Thev should be submitted in

I.

a form suitable for direct reproduction; for example, laser-printer output is ideal. In such cases authors should follow the Journal’s conventions regarding ital- iciration, bold-face type, punctuation, etc.

-Captions for figures and tables should be provid- ed on a separate page or pages of the manuscript; they should not be lettered on the original, nor should a title be designed within the frame of the figure or table. A figure (or table) and its caption should be a self-contained unit which, in its essentials, can be understood without reference to the text. References. This area is the one with the greatest inci- dence of errors in most papers. Authors are urged to check citations in the text and entries in the References most carefully. The responsibility for cor- rectness lies with the authors. Only references cited in the text should be listed under the heading REFER- ENCES. References nor cited in the text, but deemed to be essential, should be grouped separately under the heading REFERENCES FOR GENERAL READING. For further details on the format of references, the SEC Instructions are adhered to with the following exceptions: commas are omitted before the word and in a string of authors’ names; between journal name and volume number, and after words like Bull. and Pror. in the name of a publication.

Units and Spelling. Physical quantities shall be expressed in SI units. Imperial or CGS equivalents may additionally be given. See R.E. Sheriff’s “Enryclopedic Dictionary of trplmurinn Gmphysics” (SEC, 2nd ed., 1984) for a com- prehensive guide to SI units, forms of abbreviation, etc. Official Canadian SI spelling (e.g., metre) shall be used. In other cases Canadian spelling is preferred (e.g., centre, modelling, sulphur) although in many instances accept- able alternatives exist. Authors should, above all, be con- sistent in their spelling.

Review, Revision, Reprints. Authors are strongly advised to have their manuscript critically read by at least one reader familiar with the sub- ject matter before it is submitted. All manuscripts submit- ted to the Journal undergo a standard peer-review pro- cess. Galley proofs will be forwarded to authors with a return date specified and with an order form for reprints. If there is more than one author, it must be clearly indi- cated to whom the proofs are to be sent. At the discretion of the Editor, minor changes (as opposed to corrections) may be accommodated at galley-proof stage. Major revi- sions at this or at a later stage will be charged to the author. Authors may order reprints in any multiple of fifty and wilt be billed for them at cost. They should be ordered at this time only; back orders will entail much higher costs.

Copyright. The copyright of accepted and published material is reserved by the Canadian Society of Exploration Geophysicists.

98

CANADIAN SOCIETY

OF

EXPLORATION GEOPHYSICISTS

EXECUTIVE COMMITTEE FOR YEAR ENDING FEBRUARY 1989

President:

First Vice-President:

Second Vice-President:

Secretary:

Treasurer:

Business Manager:

Journal Editor:

Past President:

Recorder Editor:

R.M. (Ralph) Lundberg

A.J. (Al) Ferwom

F.E. (Fred) Baker

B.A. (Barbara) McClary

C.E. (Carol) McDermott

M.A. (Murray) Olson

R.J. (Jim) Brown

R.L. (Bob) Comer

R.M. (Rick) Lowe

99

EDITOR’S PAGE

With this, my last issue as Editor of the Canadian Journal of Exploration Geophysics, I wish to give some recognition to the men and women who have provided critical reviews of the papers submitted by their peers for publication. The task of reviewing a paper is a voluntary, essentially thankless, and nonremunerative one. I want, at least partly, to rectify the thankless nature of the work bv extendinu. on behalf of the CSEG. my sincere gratitude to the following people, who reviewed papers during the last two years.

David F. Aldridge, University of British Columbia Alan E. Beck, University of Western Ontario Melvyn E. Best, Geological Survey of Canada

(Dartmouth) Peter W. Gary, Pulsonic Geophysical Ltd. (Calgary) Christopher H. Chapman, University of Toronto Scott P. Cheadle, University of Calgary Frederick A. Cook, University of Calgary Pat F. Daley, University of Alberta Harold W. Dosso, University of Victoria Sean M. Dougherty, University of Calgary Kenneth Duckworth, University of Calgary Anthony Edwards, Geological Survey of Canada

(Dartmouth) Wayne T. Geis, University of Calgary Donald J. Gendrwill, University of Saskatchewan Alan G. Green, Geological Survey of Canada (Ottawa) Ray A.W. Haddon, Geological Survey of Canada

(Ottawa) Zoltan Hajnal, University of Saskatchewan Donald H. Hall, University of Manitoba Deborah J. Ham, University of Calgary Richard T. Houck, Mobil Research & Development Corp.

(Dallas) Eric C. Howell, Norcen Energy Resources Ltd. (Calgary) Sudhir Jai”, Commonwealth Geophysical Development

Co. Ltd. (Calgary) James H. Justice, Mobil Research & Development Corp.

(Dallas) Charlotte E. Keen, Geological Survey of Canada

(Dartmouth) Edward S. Krebes, University of Calgary Daniel H. Krentr, Canterra Energy Ltd. (Calgary) Edward G. Lalande, Home Oil Co. Ltd. (Calgary) Donald C. Lawton. University of Calgary Shlomo Levy, IT & A Inverse Theory & Applications

Inc. (Calgary)

Lev Z. Lipkov, Petro-Canada Inc. (Calgary) Ganpat S. Lodha, Canterra Energy Ltd. (Calgary) Pierre M. Marechal, CGG Geophysics Canada Ltd.

(WWY) Larry W. Marks. Shell Canada Ltd. (Calgary) George A. McMechan, University of Texas at Dallas I. Duncan McNeill, Geonics Ltd. (Mississauga) Graham F. Millington, Mobil Exploration & Production

Services Inc. (Dallas) Wooil M. Moon, University of Manitoba Gummuluru S. Murthy, Memorial University of

Newfoundland Alan E. Oldershaw, University of Calgary Madeleine A. Oldershaw, Anderson Exploration Ltd.

(w3arY) Kenneth V. Paulson, University of Saskatchewan John W. Peirce, Petro-Canada Inc. (Calgary) Fred M. Peterson, Encor Energy Corp. Inc. (Calgary) Michael G. Plaut, Texaco Canada Inc. (Calgary) Denise F. Poley, Shell Canada Ltd. (Calgary) Brian H. Russell, Hampson-Russell Software Services

Ltd. (Calgary) Anthony N. Sartorelli, Gee-Physi-Con Co. Ltd. (Calgary) William J. Scott. Hardy BBT Ltd. (Calgary) Basil R. Shammas, PanCanadian Petroleum Ltd.

(Calgary) Paul P.-Y. She”, University of Western Ontario Paul C. Starnino, Home Oil Co. Ltd. (Calgary) Robert R. Stewart, University of Calgary Robert H. Tatham, Texaco Inc. (Houston) John L. Varsek, University of Calgary James R. Wdit, University of Arizona Gordon F. West. University of Toronto A. Easton Wren, Webex Oil & Gas Ltd. (Calgary) Patrick P.-C. Wu, University of Calgary

R.J. Brown

I00