Initial Reportsof the

Deep Sea Drilling Project

A Project Planned by and Carried Out With the Advice of theJOINT OCEANOGRAPHIC INSTIUTIONS FOR DEEP EARTH SAMPLING (JOIDES)

SUPPLEMENT TO VOLUMES XXXVIII, XXXIX, XL, AND XLI

VOLUME 38

covering Leg 38 of the cruises of theDrilling Vessel Glomar Challenger

Dublin, Ireland to Amsterdam, NetherlandsJuly to September 1974

PARTICIPATING SCIENTISTS

Manik Talwani, Gleb Udintsev, Kjell Bjorklund,V. N. D. Caston, Richard W. Faas,

Jan E. van Hinte, G. N. Kharin, David A. Morris,Carla Müller, Tor H. Nilsen,

Detlef A. Warnke, Stan M. White

SCIENCE EDITOR: Stan M. White

VOLUME 39

covering Leg 39 of the cruises of theDrilling Vessel Glomar Challenger

Amsterdam, Netherlands to Cape Town, South AfricaOctober to December 1974

PARTICIPATING SCIENTISTSKatharina Perch-Nielsen, Peter R. Supko,

Anne Boersma, Enrico Bonatti, Richard L. Carlson,Menno G. Dinkelman, Ron Fodor, Naresh Kumar,

Floyd McCoy, Yury P. Neprochnov,Jorn Thiede, Herman B. Zimmerman

SCIENCE EDITOR: Peter R. Supko

VOLUME 40

covering Leg 40 of the cruises of theDrilling Vessel Glomar Challenger

Cape Town, South Africa to Abidjan, Ivory CoastDecember 1974 to February 1975

PARTICIPATING SCIENTISTSHans M. Bolli, William B. F. Ryan,

James B. Foresman, William E. Hottman,Hideo Kagami, Jose F. Longoria, Brian K. McKnight,

Marthe Melguen, James Natland,Franca Proto-Decima, William G. Siesser

SCIENCE EDITOR: James Natland

VOLUME 41

covering Leg 41 of the cruises of theDrilling Vessel Glomar Challenger

Abidjan, Ivory Coast to Malaga, SpainFebruary to April 1975

PARTICIPATING SCIENTISTSYves Lancelot, Eugen Seibold, Pavel Cepek,

Walter E. Dean, Vladislav Eremeev, James Gardner,Lubomir F. Jansa, David Johnson,

Valeri Krashneninnikov, Uwe Pflaumann,J. Graham Rankin, Peter Trabant

SCIENCE EDITORSJames Gardner and James Herring

Prepared for theNATIONAL SCIENCE FOUNDATION

National Ocean Sediment Coring ProgramUnder Contract C-482

By theUNIVERSITY OF CALIFORNIA

Scripps Institution of OceanographyPrime Contractor for the Project

This material is based upon research supported by the NationalScience Foundation under Contract No. C-482.

Any opinions, findings, and conclusions or recommendations ex-pressed in this publication are those of the author(s) and do notnecessarily reflect the views of the National Science Foundation.

References to this Volume:

Refer to the respective volumes for the appropriate references.

Printed: September 1978

Library of Congress Catalog Card Number 74-603338

For sale by the Superintendent of Documents, U.S. Government Printing OfficeWashington, D.C. 20402 - Price $14.25

Stock Number 038-000-00381-0

Foreword

For the three and one-half years between1872 and 1876, the H.M.S. CHALLENGER—after which D/V GLOMAR CHALLENGERis named—undertook the world's first majoroceanographic expedition. It is fitting that ourcentury should have its counterpart to that fa-mous ship a century ago whose voyages helpedestablished oceanography as a science. It isequally fitting that GLOMAR CHALLENGERshould be plying the same waters one centurylater seeking answers to new questions con-cerning the history of our planet and the life itsupports. The fundamental advancement ofour knowledge of the earth will lead to en-hanced capabilities to understand its processesand to use its natural resources intelligently.

The Deep Sea Drilling Project is beingundertaken within the context of the NationalScience Foundation^ Ocean Sediment CoringProgram. The Foundation is funding the proj-ect by means of a contract with the Universityof California, and the Scripps Institution ofOceanography is responsible for its manage-ment. The University has, in turn, subcon-tracted with Global Marine Incorporated forthe services of the drilling ship, GLOMARCHALLENGER.

Scientific planning is conducted under theauspices of the Joint Oceanographic Institutionsfor Deep Earth Sampling (JOIDES). TheJOIDES consortium has convened advisorypanels for that purpose, consisting of a largenumber of distinguished scientists from the aca-demic institutions, Government agencies, andprivate industry of many countries. Altogether,the project has involved the active interest andparticipation of many of the world's best scien-tists and technologists.

The first ocean coring operations for theDeep Sea Drilling Project began on August 11,1968. During the ensuing years of drilling op-erations in the Atlantic, Pacific, and IndianOceans, the Gulf of Mexico, Caribbean Sea, andMediterranean Sea, and Antarctic waters, thescientific objectives that had been set forth weresuccessfully accomplished. Primarily, the ageof the ocean basins and their processes of de-velopment were determined. Emphasis wasplaced on broad reconnaissance and on testingthe involvement of the mid-oceanic rise systemsin the development of the ocean basins.

From these concepts come major interpre-tations of the results of the drilling as they bearon patterns of sedimentation and physical andchemical characteristics of the ancient oceans.

As a result of the success of the Deep SeaDrilling Project, the National Science Founda-tion extended its contract with the Universityof California to encompass an additional 36months of drilling, allowing GLOMAR CHAL-LENGER to continue operations throughoutthe oceans of the world in exploring the deepocean floors for a period presently extendingone full decade. Scientific interest will involvemajor effort in drilling deeply into the oceaniccrustal igneous rocks to study the processes andmechanisms leading to the formation of theoceanic crust.

These reports contain the results of ini-tial studies of the recovered core material andthe associated geophysical information. Thecontribution to knowledge has been exceedinglylarge and future studies of the core materialover many years will contribute much more.

The importance of the work of the DeepSea Drilling Project and D/V GLOMARCHALLENGER is internationally recognized.In response to this recognition, a number ofnations are providing partial support. EffectiveJanuary 1974, the USSR and the Federal Re-public of Germany entered into agreementswith the United States for participation andsupport. Similar arrangements were agreed toby Japan in July 1975, the United Kingdom inSeptember 1975, and France in January 1976.

All people, in their lives, activities, andindustry, should benefit greatly from the project—from the technological advances that are be-ing made and through the information beingobtained On natural resources.

<C.Richard C. Atkinson

Director

Washington, D. C.October 1976

in

Recognizing the need in the oceanographiccommunity for scientific planning of a programto obtain deep sedimentary cores from theocean bottoms, four of the major oceano-graphic institutions that had strong interests andprograms in the fields of marine geology andgeophysics, formed in May 1964, the JointOceanographic Institutions for Deep EarthSampling (JOIDES). This group, Lamont-Doherty Geological Observatory; RosenstielSchool of Marine and Atmospheric Science,

-_-j n University of Miami; the Scripps Institution ofJL I " β l S L O G Oceanography, University of California at San

Diego; and the Woods Hole OceanographicInstitution, expressed an interest in undertakingscientific planning and guidance of the sedi-mentary drilling program. It was the purposeof this group to foster programs to investigatethe sediments and rocks beneath the deepoceans by drilling and coring. The membershipof this original group was later enlarged in1968 when the University of Washington be-came a member, and again in 1975 when Uni-versity of Hawaii Institute of Geophysics, theOregon State University School of Oceanog-raphy, the University of Rhode Island GraduateSchool of Oceanography, and Texas A&M Uni-versity Department of Oceanography becamemembers.

Through discussions sponsored by theJOIDES organization, with support from theNational Science Foundation the Lamont-Doh-erty Geological Observatory operated a drillingprogram with Dr. J. Lamar Worzel as PrincipalInvestigator. This successful drilling effort earlyin the summer of 1965, on the Blake Plateauregion off Jacksonville, Florida, used the drillingvessel, Caldriü I.

With this success in hand, planning beganfor a more extensive deep sea effort. This re-sulted in the award of a contract by the NationalScience Foundation to the University of Cali-fornia for an eighteen-month drilling programin the Atlantic and Pacific Oceans, termed theDeep Sea Drilling Project. Operations at seabegan in August 1968.

The goal of the Deep Sea Drilling Projectis to gather scientific information that will helpdetermine the age and processes of develop-ment of the ocean basins. The primary strategyis to drill deep holes into the ocean floor, relyinglargely on technology developed by the petro-leum industry.

Through the efforts of these five principalorganizations and of the panel members whichwere drawn from a large cross section of lead-ing earth scientists and associates, a scientificprogram was developed.

Cores recovered from deep beneath theocean floor will provide reference material fora multitude of future studies in fields such asbiostratigraphy, physical stratigraphy, and pa-leomagnetism, that will afford a new scope forstudies of the physical and chemical aspects ofsediment provenance, transportation, deposi-tion, and diagensis. In-hole measurements, asfeasible, should provide petrophysical data topermit inference of lithology of intervals fromwhich no cores were recovered.

A report, describing the core materials andinformation obtained both at sea and in labora-tories on shore, is published as soon as possibleafter the completion of each cruise. These re-ports are a cooperative effort of the scientistsparticipating in the cruise and are intended pri-marily to be a compilation of results which, itis hoped, will be the starting point for manyfuture new and exciting research programs.Preliminary interpretations of the data and ob-servations taken at sea, are also included.

Core materials and data collected on thecruise will be made available to qualified scien-tists through the Curator of the Deep SeaDrilling Project, following a Sample Distribution

Policy (p. xvii) approved by the National Sci-ence Foundation.

The advent of Glomar Challenger, with itsdeep-water drilling ability, is exceedingly time-ly. It has come when geophysical investigationof the oceans has matured through 20 to 30years of vigorous growth to the point wherewe have some knowledge about much of theformerly unknown oceanic areas of our planet.About one million miles of traverses had beenmade which tell us much about the global pat-tern of gravity, magnetic and thermal anomalies,and about the composition, thickness and strati-fication of the sedimentary cover of the deep-sea and continental margin. The coverage withsuch data has enabled the site selection panelsto pick choice locations for drilling. The knowl-edge gained from each hole can be extendedinto the surrounding area. Detailed geophysicalsurveys were made for most of the selected lo-cations prior to drilling.

The earth sciences have recently maturedfrom an empirical status to one in which sub-stantial theories and hypotheses about majortectonic processes are flourishing. Theoriesabout the origin of magnetic fields and magneticreversals, about ocean floor spreading and con-tinental drift, and about the thermal history ofour planet, have led to specific predictions thatcould be tested best by an enlightened programof sampling of deep-sea and continental marginsediments and underlying rocks.

The members of JOIDES and the scien-tists from all interested organizations who haveserved on the various advisory panels are proudto have been of service to the Nation and be-lieve that the information and core materialsthat have been obtained will be of value to stu-dents of earth sciences and all humanity formany years to come.

VI

Deep SeaDrilling Project

MEMBER ORGANIZATIONS OF THE JOINTOCEANOGRAPHIC INSTITUTIONS FORDEEP EARTH SAMPLING (JOIDES):*

Bundesanstalt für Geowissenschaften and Rohstoffe,Federal Republic of Germany

Lamont-Doherty Geological Observatory, ColumbiaUniversity

Rosenstiel School of Marine and AtmosphericScience, University of Miami

Scripps Institution of Oceanography, University ofCalifornia

USSR Academy of Sciences

University of Washington

Woods Hole Oceanographic Institution

OPERATING INSTITUTION:

W. A. Nierenberg, DirectorScripps Institution of OceanographyUniversity of California at San DiegoLa Jolla, California

DEEP SEA DRILLING PROJECT

N. T. EdgarProject Chief Scientist

M. N. A. PetersonPrincipal Investigator and Project Manager

* Includes member organizations during time of thecruise.

SENIOR PROJECT PERSONNEL

Mr. Frank C. MacTernanPrincipal Engineer andDeputy Project Manager

Dr. David G. MooreChief Scientist

Dr. Stan M. WhiteAssociate Chief Scientist forScience Operations

Dr. John L. UsherAssociate Chief Scientist forScience Services

Mr. William R. RiedelCurator

Mr. Stanley T. SerockiProject Development Engineer

Mr. Valdemar LarsonOperations Manager

Mr. William T. SoderstromFinance Administrator

Mr. Robert OlivasLogistics Officer

Mr. Robert S. BowerContracts Officer

Ms. Sue StrainPersonnel Officer

vπ

Participants Aboard

GLOMAR CHALLENGER for Legs 38, 39, 4O, and 41

Refer to the respective volumes for the participants.

IX

JOIDES AdvisoryGroups

Refer to the respective volumes for the appropriate panels and their members.

Deep Sea Drilling ProjectSAMPLE DISTRIBUTION POLICY

Distribution of Deep Sea Drilling samples for investi-gation will be undertaken in order to (1) providesupplementary data to support GLOMAR CHAL-LENGER scientists in achieving the scientific objec-tives of their particular cruise, and in addition toserve as a mechanism for contributions to the InitialReports; (2) provide individual investigators withmaterials that are stored with samples for referenceand comparison purposes.

The National Science Foundation has established aSample Distribution Panel to advise on the distribu-tion of core materials. This panel is chosen in accor-dance with usual Foundation practices, in a mannerthat will assure advice in the various disciplines lead-ing to a complete and adequate study of the coresand their contents. Funding for the proposed researchmust be secured separately by the investigator. Itcannot be provided through the Deep Sea DrillingProject.

The Deep Sea Drilling Projects Curator is respon-sible for distributing the samples and controlling theirquality, as well as preserving and conserving corematerial. He also is responsible for maintaining arecord of all samples that have been distributed,shipboard and subsequent, indicating the recipient,and the nature of the proposed investigation. Thisinformation is made available to all investigators ofDSDP materials as well as other interested research-ers on request.

The distribution of samples is made directly from oneof the two existing repositories, Lamont-DohertyGeological Observatory and Scripps Institution ofOceanography, by the Curator or his designatedrepresentative.

1. Distribution of Samples for Research Leading toContributions to Initial Reports

Any investigator who wishes to contribute a paper toa given volume of the Initial Reports may write tothe Chief Scientist, Deep Sea Drilling Project (A-031)Scripps Institution of Oceanography, University ofCalifornia at San Diego, La Jolla, California 92093,U.S.A., requesting samples from a forthcomingcruise. Requests for a specific cruise should bereceived by the Chief Scientist two months in advanceof the departure of the cruise in order to allow timefor the review and consideration of all requests andto establish a suitable shipboard sampling program.The request should include a statement of the nature

of the study proposed, size and approximate numberof samples required to complete the study, and anyparticular sampling technique or equipment thatmight be required. The requests will be reviewed bythe Chief Scientist of the Project and the cruiseco-chief scientists; approval will be given in accor-dance with the scientific requirements of the cruiseas determined by the appropriate JODIES AdvisoryPanel(s). If approved, the requested samples willbe taken, either by the shipboard party if the work-load permits, or by the curatorial staff shortly follow-ing the return of the cores to the repository. Pro-posals must be of a scope to ensure that samplescan be processed and a contribution completed intime for publication in the Initial Reports. Exceptfor rare, specific instances involving ephemeral prop-erties, sampling will not exceed one-quarter of thevolume of core recovered, with no interval beingdepleted and one-half of all core being retained asan archive. Shipboard sampling shall not exceedapproximately 100 igneous samples per investigator;in all cases co-chief scientists are requested to keepsampling to a minimum.

The co-chief scientists may elect to have specialstudies of selected core samples made by other inves-tigators. In this event the names of these investi-gators and complete listings of all materials loaned ordistributed must be forwarded, if possible, prior tothe cruise or, as soon as possible following the cruise,to the Chief Scientist through the DSDP Staff ScienceRepresentative for that particular cruise. In suchcases, all requirements of the Sample DistributionPolicy shall also apply.

If a dispute arises or if a decision cannot be reachedin the manner prescribed, the NSF Sample Distribu-tion Panel will conduct the final arbitration.

Any publication of results other than in the InitialReports within twelve (12) months of the comple-tion of the cruise must be approved and authoredby the whole shipboard party and, where appropriate,shore-based investigators. After twelve months, indi-vidual investigators may submit related papers foropen publication provided they have submitted theircontributions to the Initial Reports. Investigationsnot completed in time for inclusion in the InitialReports for a specific cruise may not be published inother journals until final publication of that InitialReport for which it was intended. Notice of sub-mission to other journals and a copy of the articleshould be sent to the DSDP Chief Science Editor.

* Revised October 1976

XI

2. Distribution of Samples for Research leading toPublication other than in Initial Reports

A. Researchers intending to request samples forstudies beyond the scope of the Initial Reportsshould first obtain sample request forms fromthe Curator, Deep Sea Drilling Project(A-031), Scripps Institution of Oceanogra-phy, University of California at San Diego,La Jolla, California 92093, U.S.A. On theforms the researcher is requested to specifythe quantities and intervals of the corerequired, make a clear statement of the pro-posed research, state time required to com-plete and submit results for publication,specify the status of funding and the availa-bility of equipment and space foreseen forthe research.

In order to ensure that all requests for highlydesirable but limited samples can be con-sidered, approval of requests and distributionof samples will not be made prior to 2 monthsafter publication of the Initial Core Descrip-tions (LCD.) . ICD's are required to bepublished within 10 months following eachcruise. The only exceptions to this policywill be for specific instances involving ephem-eral properties. Requests for samples can bebased on the Initial Core Descriptions, copiesof which are on file at various institutionsthroughout the world. Copies of original corelogs and data are kept on open file at DSDPand at the Repository at Lamont-DohertyGeological Observatory, Palisades, NewYork. Requests for samples from researchersin industrial laboratories will be handled inthe same manner as those from academicorganizations, with the same obligation topublish results promptly.

B. (1) The DSDP Curator is authorized to dis-tribute samples to 50ml per meter of core.Requests for volumes of material in excess ofthis amount will be referred to the NSFSample Distribution Panel for review andapproval. Experience has shown that mostinvestigations can be accomplished with 10mlsized samples or less. All investigators areencouraged to be as judicious as possible withregard to sample size and, especially, fre-quency within any given core interval. TheCurator will not automatically distribute anyparts of the cores which appear to be in par-ticularly high demand; requests for such partswill be referred to the Sample DistributionPanel for review. Requests for samples from

thin layers or important stratigraphic bound-aries will also require Panel review.

(2) If investigators wish to study certainproperties which may deteriorate prior to thenormal availability of the samples, they mayrequest that the normal waiting period notapply. All such requests must be reviewedby the curators and approved by the NSFSample Distribution Panel.

C. Samples will not be provided prior to assur-ance that funding for sample studies eitherexists or is not needed. However, neitherformal approval of sample requests nor dis-tribution of samples will be made until theappropriate time (Item A) . If a samplerequest is dependent, either wholly or in part,on proposed funding, the Curator is preparedto provide to the organization to whom thefunding proposal has been submitted anyinformation on the availability (or potentialavailability) of samples that it may request.

D. Investigators receiving samples are respon-sible for:

(1) publishing significant results; howevercontributions shall not be submitted for pub-lication prior to 12 months following thetermination of the appropriate leg;

(2) acknowledging, in publications, thatsamples were supplied through the assistanceof the U.S. National Science Foundation andothers as appropriate;

(3) submitting five (5) copies (for distri-bution to the Curator's file, the DSDP Reposi-tories, the GLOMAR CHALLENGERSLibrary, and the National Science Founda-tion) of all reprints of published results tothe Curator, Deep Sea Drilling Project(A-031), Scripps Institution of Oceanogra-phy, University of California at San Diego,La Jolla, California 92093, U.S.A.;

(4) returning, in good condition, the remain-ders of samples after termination of research,if requested by the Curator.

E. Cores are made available at repositories forinvestigators to examine and to specify exactsamples in such instances as may be neces-sary for the scientific purposes of the sam-pling, subject to the limitations of B (1 and2) and D, above, with specific permission ofthe Curator or his delegate.

xn

F. Shipboard-produced smear slides of sedi-ments and thin sections of indurated sedi-ments, igneous and metamorphic rocks, willbe returned to the appropriate repository atthe end of each cruise or at the publicationof the Initial Reports for that cruise. Thesesmear slides and thin sections will form areference collection of the cores stored ateach repository and may be viewed at therespective repositories as an aid in the selec-tion of core samples.

G. The Deep Sea Drilling Project routinely pro-cesses by computer most of the quantitativedata presented in the Initial Reports. Spacelimitations in the Initial Reports preclude thedetailed presentation of all such data. How-ever, copies of the computer readout areavailable for those who wish the data forfurther analysis or as an aid on selectingsamples. A charge will be made to recoverexpenses in excess of $50.00 incurred infilling requests.

3. Other Records

Magnetics, seismic reflection, downhole logging, andbathymetric data collected by the GLOMAR CHAL-LENGER will also be available for distribution atthe same time samples become available.

Requests for data may be made to:

Associate Chief Scientist, Science ServicesDeep Sea Drilling Project (A-031)Scripps Institution of OceanographyUniversity of California at San DiegoLa Jolla, California 92093

A charge will be made to recover the expenses inexcess of $50.00 in filling individual requests. Ifrequired, estimated charges can be furnished beforethe request is processed.

4. Reference Centers

As a separate and special category, samples will bedistributed for the purpose of establishing up to fivereference centers where paleontologic materials willbe available for reference and comparison purposes.The first of these reference centers has been approvedat Basel, Switzerland.

xin

CONTENTS—SUPPLEMENT

Chapter PagePART I: VOLUME 38 SUPPLEMENT 1

1. PALEOMAGNETISM AND MAGNETICPROPERTIES OF IGNEOUS ROCKSAMPLES—LEG 38 3Dennis V. Kent and Neil D. Opdyke

2. LITHOLOGY AND CLAY MINERALOGYOF THE SEDIMENTS FROM SITE 336,DSDP LEG 38 9P. P. Timofeev, N. V. Renngarten, and L. J.Bogolyubova

3. LITHOLOGY AND CLAY MINERALOGYOF SEDIMENTS FROM SITE 337, DSDPLEG 38 21N. V. Renngarten, M. A. Rateev, V. D. Shutov,and V. A. Drits

4. MINERAL AND CHEMICALCOMPOSITION OF SEDIMENTS OFTHE V0RING PLATEAU, DSDP LEG 38.. 31E. M. Emelyanov, A. I. Blazchishin, G. S.Kharin, N. G. Lozovaya, and K. P. Zangalis

5. MINERALOGY, GEOCHEMISTRY, ANDPETROGRAPHY OF SEDIMENTSRECOVERED AT SITE 345, DSDPLEG 38 31A. G. Kossovskaya and V. A. Drits

6. LITHOLOGY AND CLAY MINERALOGYOF SEDIMENTS FROM HOLE 346 55M. A. Rateev, N. V. Renngarten, V. D. Shutov,and V. A. Drits

7. THE LITHOLOGY AND GENESIS OFTHE SEDIMENTARY DEPOSITS IN THENORWEGIAN BASIN AND WESTERNPART OF THE LOFOTEN BASIN 67A. G. Kossovskaya, P. P. Timofeev,and V. D. Shutov

8. ORIGIN OF THE LATE CENOZOICSEDIMENTS OF THE ICELANDIC BASIN,DSDP SITE 348, LEG 38 73M. P. Nesterova, F. A. Scherbokov,A. Ja. Shevchenko, N. W. Turanskaja,W. P. Kazakova, A. G. Samosudov, T. G.Kuzmina, and A. N. Rudakova

9. SEDIMENTARY ROCKS OF THEJAN-MAYEN RIDGE 95G. B. Udintsev and G. S. Kharin

10. PETROGRAPHY OF VOLCANIC ASHESIN DEEP-SEA CORES NEAR JAN-MAYENISLAND: SITES 338, 345-350 DSDPLEG 38 101Arthur G. Sylvester

Chapter Page11. LITHOLOGIC-MINERALOGIC STUDIES

OF THE SEDIMENTARY DEPOSITS FROMHOLE 350, DSDP LEG 38 Il lI. M. Varentsov

12. INTERSTITIAL WATER STUDIES,LEG 38 121Joris M. Gieskes, James R. Lawrence,and Guntwin Galleisky

13. MINERALOGIC STUDIES OF SEDIMENTSFROM THE NORWEGIAN-GREENLANDSEA (SITES 336, 343, 345, AND 348) 135Edward A. Perry, Jr., Stephen J. Grady,and William M. Kelly

14. REMARKS ON THE OLIGOCENECALCAREOUS NANNOPLANKTONBIOGEOGRAPHY OF THENORWEGIAN SEA (DSDP LEG 38) 141Bilal U. Haq and G. P. Lohmann

15. EOCENE TO PLIOCENEARCHAEOMONADS, EBRIDIANS,AND ENDOSKELETALDINOFLAGELLATES FROM THENORWEGIAN SEA, DSDP LEG 38 147Katharina Perch-Nielsen

16. FIVE TRISSOCYCLID RADIOLARIAFROM SITE 338 177Robert M. Goll

17. SEDIMENTS OF THE NORWEGIAN-GREENLAND SEA, DSDP LEG 38 193Stan M. White

18. TURBIDITES, REDBEDS, SEDIMENTARYSTRUCTURES, AND TRACE FOSSILSOBSERVED IN DSDP LEG 38 CORESAND THE SEDIMENTARY HISTORY OFTHE NORWEGIAN-GREENDLAND SEA.. 259Tor H. NilsenWith a contribution form Dennis R. Kerr

19. DIATOM AND RADIOLARIANCENOZOIC STRATIGRAPHY,NORWEGIAN BASIN; DSDP LEG 38 289R. N. Dzinoridze, A. P. Jousé, G. S.Koroleva-Golikova, G. E. Kozlova,G. S. Nagaeva, M. G. Petrushevskaya,and N. I. Strelnikova

20. GRAIN-SIZE ANALYSES, LEG 38 429Donald Cameron

21. CARBON AND CARBONATE ANALYSES,LEG 38 433Kenneth Thompson

22. X-RAY MINERALOGY OF SEDIMENT,DSDP LEG 38 437Stan M. White

xv

Chapter Page

23. GEOPHYSICAL SURVEYS ON THEICELAND-FAEROE RIDGE FORSELECTION OF SITES 336 AND 352 445M. Talwani

24. SURVEYS AND SELECTION OF SITES338, 339, 340, 341, 342, AND 343 ONTHE V0RING PLATEAU 451M. Talwani

25. SURVEY AT SITE 337, NEAR THEEXTINCT AXIS IN THE NORWAYBASIN 455M. Talwani and S. Sandal

26. SURVEY AT SITE 344, RIFT MOUNTAINSEAST OF KNIPOVICH RIFT 461M. Talwani

27. SURVEY AT SITES 346, 347, 348, 349, and350 THE AREA OF THE JAN-MAYENRIDGE AND THE ICELANDICPLATEAU 465M. Talwani, G. Udinstev, E. Mirlin,Beresnev, V. F. Kanayev, M. Chapman,G. Gronlie, and O. Eldholm

PART II: VOLUME 39 SUPPLEMENT 4891. CENOZOIC DIATOM BIOSTRATIGRAPHY

OF THE EQUATORIAL AND SOUTHERNATLANTIC OCEAN 491J. Fenner

PART III: VOLUME 40 SUPPLEMENT 6251. ORGANIC GEOCHEMICAL ANALYSES

OF CORE SAMPLES FROM SITE 362,WALVIS RIDGE, DSDP LEG 40 627Jaap J. Boon, F. W. v.d. Meer, P. J. W. Schuyl,J. W. de Leeuw, P. A. Schenck, andA. L. Burlingame

2. CHLORIN AND PORPHYRINGEOCHEMISTRY OF DSDP LEG 40SEDIMENTS 639E. W. Baker, S. E. Palmer, and W. Y. Huang

3. LIGHT HYDROCARBONS IN HOLES 361AND 364, LEG 40 649John M. Hunt

4. GEOCHEMISTRY OF CARBON: DEEP SEADRILLING PROJECT LEG 40 651J. G. Erdman and K. S. Schorno

5. LIPID ANALYSES OF SEDIMENTSFROM SITE 364 IN THE ANGOLABASIN, DSDP LEG 40 659Bernd R. T. Simoneit

6. MICROSCOPICAL SURVEY OF ORGANICMATTER FROM DSDP SITES 361,362, AND364 663J. F. Raynaud and P. Robert

Chapter Page

7. PETROLEUM-GENERATING POTENTIALOF SEDIMENTS FROM LEG 40, DEEP SEADRILLING PROJECT 671J. W. Kendrick, A. Hood, and J. R. Castario

8. PAGIOPHYLLUM MARITIMUM SP.NOV.,AND DESCRIPTIVE NOTES ON THEDISPERSED CUTICLES FROMLEG 40, SITE 361 677John T. Brown

9. GUEMBELITRIA AFF. STAVENSISBANDY, A PALEOOCEANOGRAPHICMARKER OF THE INITIATION OF THECIRCUM-ANTARCTIC CURRENT ANDTHE OPENING OF THE DRAKEPASSAGE 687D. Graham Jenkins

10. CALCAREOUS SPHERULES FROM THEALBIAN OF DSDP LEG 40, SITE 363 695Hans M. Bolli

11. NOTES ON INOCERAMUS, MESOZOICBIVALVES FROM THE SOUTHEASTERNATLANTIC, DSDP SITES 361 AND 364,LEG 40 703Tatsuro Matsumoto

12. LOWER CRETACEOUS AMMONITESFROM THE SOUTH ATLANTIC LEG 40(DSDP), THEIR STATRIGRAPHICVALUE AND SEDIMENTOLOGICALPROPERTIES 709Jost Wiedmann and Joachim Neugebauer

13. OPAL PHYTOPLANKTON REMAINS ATDSDP LEG 40 SITES 735Hans-Joachim Schrader

14. ICHTHYOLITHS FROM SOMESOUTHEAST ATLANTIC SEDIMENTS,DSDP LEG 40 743P.S. Doyle, M. J. Dunsworth, and W. R. Riedel

15. NATIVE COPPER IN DSDP LEG 40SEDIMENTS 761William G. Siesser

16. PETROGRAPHY AND GEOCHEMISTRYOF PYRITE AND MARCASITE IN DSDPLEG 40 SEDIMENTS 767William G. Siesser

PART IV: VOLUME 41 SUPPLEMENT 7771. FORAMINIFERA FROM DSDP SITE

370, LEG 41, EASTERN NORTHATLANTIC OCEAN 779F. M. Gradstein

2. PALYNOLOGICAL BIOSTRATIGRAPHY,DEEP SEA DRILLING PROJECT SITES367 AND 370 783G. L. Williams

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Chapter Page Chapter Page

CRETACEOUS CALCISPHAERULIDS 9FROM DSDP LEG 41, EASTERN NORTHATLANTIC 817Uwe Pflaumann and Valery A. KrasheninnikovSPORES AND POLLEN FROMCRETACEOUS DEPOSITS OF THEEASTERN NORTH ATLANTIC OCEAN,DEEP SEA DRILLING PROJECT, 10LEG 41, SITES 367 AND 370 841Ida Z. KotovaQUANTERNARY STRATIGRAPHY ANDPLANKTONIC FORAMINIFERS OF THEEASTERN ATLANTIC, DEEP SEADRILLING PROJECT, LEG 41 883Uwe Pflaumann and Valery A. KrasheninnikovPLIOCENE-PLEISTOCENE COCCOLITHASSEMBLAGES FROM THE SIERRALEONE RISE—SITE 366, LEG 41 913Christian SamtlebenPALYNOLOGY OF PALEOGENE CLAYFROM DSDP SITE 368, CAPE VERDE RISE 933Elena D. Zaklinskaya 12NEOGENE SAND LAYERS OFFNORTHWEST AFRICA: COMPOSITIONAND SOURCE ENVIRONMENT 939Michael Sarnthein

11.

MICROFACIES AND MICROFABRICSOF EARLY MIDDLE CRETACEOUSSEDIMENTS SELECTED FROM SITE370, DSDP LEG 41 (DEEP BASIN OFFMOROCCO) 961Diethard E. Meyer

MAGNETOSTRATIGRAPHIC STUDIES OFCRETACEOUS SEDIMENTS FROM DSDPSITE 369 983B. H. Keating and C. E. Helsley

A PRELIMINARY PALEOMAGNETICSTRATIGRAPHY FOR LOWER EOCENESEDIMENTS AT SITE 366 (SIERRALEONE RISE) AND MIOCENE ANDOLIOGOCENE SEDIMENTS AT SITE 368(CAPE VERDE RISE), NORTHWESTAFRICAN CONTINENTAL MARGIN 987Ernest A. Hailwood

PALEOMAGNETISM AND ROCKMAGNETISM OF UPPER JURASSICLIMESTONE AND BASALT FROMSITE 367 995Dennis V. Kent and Lan Ping Tsai

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INTRODUCTION

This volume contains a compilation of scientific papers, that for reasons of volume size requirements,were not published in Initial Report Volumes XXXVIII, XXXIX, XL, and XLI. All papers present theresults of analysis and study on samples collected during the respective cruises. However, because of thetime span between the publication of this supplemental volume and the formal Initial Reports volumes,readers should be aware that, as a result of subsequent work, present-day interpretations and/or conclusionsof the authors may differ from those presented herein.

Readers of this supplemental volume are referred to Chapter 1 (Introduction and Explanatory Notes) ofVolumes XXXVIII, XXXIX, XL, and XLI for discussions on scientific cruise objectives, operations,resumes, comments on authorship, explanations of data presentation, and acknowledgments.

ATLANTIC .....^368

367

30° 24°

Leg 38, Sites 336-352Leg 39, Sites 353-359

Leg 40, Sites 360-365— Leg 41, Sites 366-370

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