Agenda Joides Planning Committee

Total Page:16

File Type:pdf, Size:1020Kb

Agenda Joides Planning Committee 001 JOIDES PLANNING COMMITTEE MEETING 30 November - 4 December 1987 Sunriver, Oregon ^' AGENDA »';• i I Monday. 30 November 1987: 9:00 a.m. Page Number [Salmon] Green A. Welcome and Introductions B. Minutes of PCOM Meeting, 25-28 August 1987 31-83 C. EXCOM Report, 5-7 October 1987 [4-5] D. NSF Report E. JOI, Inc. Report [6] P;. Science Operator Report t G. Wireline Logging Services Report Tuesday. 1 December 1987: 8:30 a.m. H. Annual Reports, from Panel i Committee Chairmen 85-100 LITHP, TECP, SOHP, DMP, lOP, WPAC, CEPAC, SOP, ARP, IHP, TEDCOM, SSP, PPSP I. TAMU Engineering Report Wednesday. 2 December 1987: 8:30 a.m. J. Report from Panel Chairmen's Meeting, 29 November 1987 K. COSOD II [7] 101-102 Afternoon: FIELD TRIP (lunch provided) Evening: Panel Review Subcommittee Meeting Thursday. 3 December 1987: 8:30 a.m. L. Indian Ocean Planning [8-10] M. Western Pacific Planning [11-18]^ 1. Final FY89 Science Plan ^ 2. Second Year of WPAC Drilling N. Central and Eastern Pacific Planning [19-24] 177-205 Friday. 4 December 1987: 8:30 a.m. 0. Medium-Range Science Plan (FY89-91) . [25] P. Report from Panel Review Subcommittee ... [26] Q, Wireline Reentry by Third Parties - [26] R. JOIDES Office Rotation [27] S. Panel Membership [27] T. Future Meeting Schedule ' [30] U. Other Business [30] 002 ADDITIONAL ATTACHMENTS: Page 1. PPSP minutes, 6 October, College.Station 103-104 2. SOHP minutes, 31 Aug-2 Sep, Tokyo . 105-129 3. TECP minutes, 27-29 Sep, Switzerland . 131-148 4. LITHP minutes, 29 Sep-1 Oct, Paris . 149-176 5. Second CEPAC Prospectus 177-205 6. SOP executive summary from 8-9 Oct.meet. 207-208 7. DMP minutes, 18-19 Aug, Seattle .... 209-236 8. Proposal List ............. 237-242 JOIDES MEETING SCHEDULE Date Place Committee/Panel 2-5 November London WPAC 30 Nov - 4 Dec Bend, OR PCOM/Panel Chairmen (Annual Meeting) 6 December San Francisco PPSP 16-17 January* London PPSP 19-20 January Miami DMP 26-28 January* College Station IHP 19-12 February* Menlo Park CEPAC March* London SSP 1-3 March* Hawaii LITHP ">-9 March* Houston SOHP 25-27 May Pal isades EXCOM/ODP Council :20-22 April College Station PCOM June* Hannover TECP J 14-16 September Edinburgh EXCOM * Tentative meeting (not yet formally requested/approved) (rev. 10/30/87) o r> o cr JOIDES RESOLUTION OPERATIONS SCHEDULE LEGS 118-129 -i to CO LEG AREA LOCATION'^^''^'^^^ DATE DESTINATION^'^'^^^^^ DATE IN PORT 118 Southwest Indian Mauritius 23 October Mauritius 14 December 14-18 December Ridge Fracture Zone 119 Kerguelen Plateau Mauritius 19 December Mauritius 20 Feb 1988 20-24 February and Prydz Bay 120 CentraV Kerguelen Mauritius 25 February Freemantle 26 April 26-30 April Plateau 121 Broken Ridge Freemantle 1 May Singapore 23 June 23-27 June and N90OE Ridge 122 Exmouth Plateau Singapore 28 June Singapore 27 August 27-31 August 123 Argo Abyssal Plain Singapore 1 September Darwin 29 October 29 Oct - 2 Nov and Exmouth Plateau 124 Sulu Sea/So.China Sea Darwin 3 November Manila 14 December 14-18 December 125 Bonins I Manila 19 December Tokyo 8 Feb 1989 8-12 February 126 Bonins II Tokyo 13 February Yokohama 10 April 10-14 April 127 Nankal Trough Yokohama 15 April Yokohama 12 June 12-16 June 128 Japan Sea I Yokohama 17 June Ni igata 2 August 2-6 August 129 Japan Sea II Ni igata 7 August Nagasaki (?) 7 September Dry Dock Nagasaki (?) 7-20 September NOTE: Ports and dates after Leg 121 are tentative and should be used as estimates only. (Rev 9/18/87) O O }04 ITEM D. EXCOM REPORT The last EXCOM meeting was held 5-7 October 1987 in Nikko, Japan. Results from that meeting which are of interest for this PCOM meeting are listed below. Copies of the EXCOM meeting minutes are available from the JOIDES Office. - EXCOM endorsed and recommended implementation of the editorial and publications policy developed by the IHP! - EXCOM approved the FY88 program plan as revised August 6, 1987 by JOI, Inc. - EXCOM endorsed the new outline for proposal processing developed at the last PCOM meeting, with the addition that regional panels should provide input on alternative areas which can better address problems posed by proposals. - EXCOM endorsed the establishment of PCOM's subcommittee to review the advisory panel structure. - EXCOM made changes In its BCOM representation by appointing J.Briden (U.K.) and B.Lewis as the new non-U.S. and U.S. representatives, respectively, with C.Helsley to serve as BCOM Chairman for the next year. Changes in PCOM representation were left for PCOM action. - With no foreseeable budget concerns, EXCOM advises PCOM to proceed with the development of the FY89 science plan. - EXCOM considered a strawman timetable for the review, evaluation, and incorporation of COSOD II recommendations into the JOIDES/ODP planning ^ process (see following page). EXCOM appointed a subcommittee to review agenda content for the next few meetings to insure that EXCOM decisions are kept at a policy level, and do not involve science planning issues. Subcommittee members are M.Keen (Canada), C.Helsley (HIG), J.Baker (JOI, Inc.), and N.Pisias (PCOM). The subcommittee will communicate via telephone and telemail prior to the next EXCOM meeting. - EXCOM directed the non-U.S. PCOM members to meet during the annual PCOM meeting to consider French and Canadian nominations for the position of Non- U.S. Liaison and Executive Assistant td the JOIDES Office. It was recommended that the PCOM Chairman and HIG representatives also participate in the selection of this person who will serve with the JOIDES Office during its tenure at HIG. - EXCOM endorsed an oral request for French re-entry of Hole 396D, contingent upon PCOM approval of the request at its next meeting. - EXCOM appointed a subcommittee to develop long-term options for increasing involvement of developing countries in ODP. The subcommittee members are J.Baker (JOI, Inc.), H.Duerbaum (FRG), and J.Stel (ESF). - EXCOM passed a motion acknowledging J.Clotworthy's (JOI, Inc.) long association with ocean drilling, thanking him for his contributions to both the DSDP and ODP, and wishing him well in his retirement. 005 Item D. EXCOM Report, continued STRAWMAN TIMETABLE FOR EVALUATION AND INCORPORATION OF COSOD II RECOMMENDATIONS 1 Mar 88 COSOD II report assumed to be available 21 Apr 88 PCOM Meeting: PCOM Subcommittee will report on advisory structure in relationship to COSOD II recommendations PCOM will discuss COSOD II objectives in relationship to present objectives of ODP and in terms of 4-year view of upcoming drilling, as mandated by PCOM Terms of Reference. 25 May 88 EXCOM Meeting: PCOM reports on possible advisory structure and makes its first set of suggestions for these changes PCOM reports on initial view of the relationship of COSOD II objectives to present objectives of ODP EXCOM formulates initial instructions to PCOM on how to begin implementing COSOD II recommendations Aug 88 PCOM Meeting: PCOM discusses EXCOM instructions and formulates recommendations on how to address COSOD II objectives Fall 88 EXCOM Meeting: EXCOM provides specific instructions to PCOM for their December 1988 Annual Meeting OOG ITEM F. JOI, INC. REPORT After the Sunriver meeting PCOM needs to forward a firm FY89 science plan to JOI, Inc. To familiarize you, a timetable for development of the FY89 budget and program plan is shown below. PCOM input is (as defined by EXCOM and JOI, Inc.) through PCOM meetings and the BCOM (Budget Committee). ODP PROGRAM PLAN DEVELOPMENT Timetable for FY 89 Program Plan 6-8 Oct 87 EXCOM advice to PCOM 30 Nov-4 Dec 87 PCOM science plan and advice to JOI/EXCOM 5 Jan 88 NSF target budget to JOI/JOIDES 2 Feb 88 JOI outline (contractor budgets) to NSF/JOIDES BCOM If no problems, mail to EXCOM If problems, BCOM proposes solution 1 Apr 88 JOI plan to NSF for administrative review (includes JOIDES suggestions, if required) 7 Apr 88 JOI revisions 15 Apr 88 JOI,draft program plan and NSF concerns to JOIDES BCOM, EXCOM and ODP Council 21-23 Apr 88 PCOM review 10 May 88 JOI review with JOIDES 8C0M 25-27 May 88 EXCOM/ODP Council meeting: JOI/BCOW. give input to EXCOM, EXCOM gives advice to NSi-yJOr, with ODP Council consultation 15 July 88 NSF final review of revised JOI plan 22 July 88 JOI final modifications (if necessary) 1 Aug 88 NSF executes contract, JOI informs EXCOM and ODP Council (changes justified), and PCOM Fall 88 EXCOM give final approval to Program Plan 1 Oct 88 Start of contract year 007 ITEM K. COSOD II An extensive discussion on COSOD II will depend, in part, on the availability of the COSOD II Report. At the October EXCOM meeting, Bernard Munsch, ESF Consortium, offered to express mail copies of the report to PCOM members as soon as the report is available. The following attendees to the October 19-21 meeting of the COSOD II Steering Committee will be present at this meeting and might provide an update on the status: Miriam Kastner: Steering Committee Sy Schlanger: Steering Committee (through Dec. 1) Tom Pyle: JOI Inc. COSOD II will have implications in the discussion of Long-Range Planning for ODP. However, a detailed discussion of recommendations has to wait until the final COSOD II report is in hand. For a start, PCOM might consider COSOD II in a historical perspective to COSOD I, (as economists are now advising distraught investors to consider their recent losses in perspective to the Great Depression).
Recommended publications
  • Chapter 4 Tectonic Reconstructions of the Southernmost Andes and the Scotia Sea During the Opening of the Drake Passage
    123 Chapter 4 Tectonic reconstructions of the Southernmost Andes and the Scotia Sea during the opening of the Drake Passage Graeme Eagles Alfred Wegener Institute, Helmholtz Centre for Marine and Polar Research, Bre- merhaven, Germany e-mail: [email protected] Abstract Study of the tectonic development of the Scotia Sea region started with basic lithological and structural studies of outcrop geology in Tierra del Fuego and the Antarctic Peninsula. To 19th and early 20th cen- tury geologists, the results of these studies suggested the presence of a submerged orocline running around the margins of the Scotia Sea. Subse- quent increases in detailed knowledge about the fragmentary outcrop ge- ology from islands distributed around the margins of the Scotia Sea, and later their interpretation in light of the plate tectonic paradigm, led to large modifications in the hypothesis such that by the present day the concept of oroclinal bending in the region persists only in vestigial form. Of the early comparative lithostratigraphic work in the region, only the likenesses be- tween Jurassic—Cretaceous basin floor and fill sequences in South Geor- gia and Tierra del Fuego are regarded as strong enough to be useful in plate kinematic reconstruction by permitting the interpretation of those re- gions’ contiguity in mid-Mesozoic times. Marine and satellite geophysical data sets reveal features of the remaining, submerged, 98% of the Scotia 124 Sea region between the outcrops. These data enable a more detailed and quantitative approach to the region’s plate kinematics. In contrast to long- used interpretations of the outcrop geology, these data do not prescribe the proximity of South Georgia to Tierra del Fuego in any past period.
    [Show full text]
  • Oblique Collision in the Northeastern Caribbean from GPS Measurements and Geological Observations
    TECTONICS, VOL. 21, NO. 6, 1057, doi:10.1029/2001TC001304, 2002 Oblique collision in the northeastern Caribbean from GPS measurements and geological observations Paul Mann,1 Eric Calais,2 Jean-Claude Ruegg,3 Charles DeMets,4 Pamela E. Jansma,5 and Glen S. Mattioli6 Received 31 May 2001; revised 16 April 2002; accepted 10 June 2002; published 11 December 2002. [1] Previous Caribbean GPS studies have shown that Tectonophysics: Continental neotectonics; 8105 Tectonophysics: the rigid interior of the Caribbean plate is moving east- Continental margins and sedimentary basins; 3025 Marine Geology northeastward (070°) at a rate of 18–20 ± 3 mm/yr and Geophysics: Marine seismics (0935); 3040 Marine Geology relative to North America. This direction implies and Geophysics: Plate tectonics (8150, 8155, 8157, 8158); 7230 maximum oblique convergence between the island of Seismology: Seismicity and seismotectonics; KEYWORDS: GPS, neotectonics, Hispaniola, Puerto Rico, Bahama Platform, Hispaniola on the Caribbean plate and the 22–27-km- earthquakes. Citation: Mann, P., E. Calais, J.-C. Ruegg, C. thick crust of the Bahama carbonate platform on the DeMets, P. E. Jansma, and G. S. Mattioli, Oblique collision in the adjacent North America plate. We present a tectonic northeastern Caribbean from GPS measurements and geological interpretation of a 15-site GPS network which spans observations, Tectonics, 21(6), 1057, doi:10.1029/2001TC001304, the Hispaniola-Bahama oblique collision zone and 2002. includes stable plate interior sites on both the North America and Caribbean plates. Measurements span the time period of 1994–1999. In a North America 1. Introduction reference frame, GPS velocities in Puerto Rico, St.
    [Show full text]
  • 100 Million Years of Antarctic Climate Evolution: Evidence from Fossil Plants 19 J
    Antarctica: A Keystone in a Changing World Proceedings of the 10th International Symposium on Antarctic Earth Sciences, Santa Barbara, California, August 26 to September 1, 2007, Alan K. Cooper, Peter Barrett, Howard Stagg, Bryan Storey, Edmund Stump, Woody Wise, and the 10th ISAES editorial team, Polar Research Board, National Research Council, U.S. Geological Survey ISBN: 0-309-11855-7, 164 pages, 8 1/2 x 11, (2008) This free PDF was downloaded from: http://www.nap.edu/catalog/12168.html Visit the National Academies Press online, the authoritative source for all books from the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council: • Download hundreds of free books in PDF • Read thousands of books online, free • Sign up to be notified when new books are published • Purchase printed books • Purchase PDFs • Explore with our innovative research tools Thank you for downloading this free PDF. If you have comments, questions or just want more information about the books published by the National Academies Press, you may contact our customer service department toll-free at 888-624-8373, visit us online, or send an email to [email protected]. This free book plus thousands more books are available at http://www.nap.edu. Copyright © National Academy of Sciences. Permission is granted for this material to be shared for noncommercial, educational purposes, provided that this notice appears on the reproduced materials, the Web address of the online, full authoritative version is retained, and copies are not altered. To disseminate otherwise or to republish requires written permission from the National Academies Press.
    [Show full text]
  • Future Accreted Terranes: a Compilation of Island Arcs, Oceanic Plateaus, Submarine Ridges, Seamounts, and Continental Fragments” by J
    Open Access Solid Earth Discuss., 6, C1212–C1222, 2014 www.solid-earth-discuss.net/6/C1212/2014/ Solid Earth © Author(s) 2014. This work is distributed under Discussions the Creative Commons Attribute 3.0 License. Interactive comment on “Future accreted terranes: a compilation of island arcs, oceanic plateaus, submarine ridges, seamounts, and continental fragments” by J. L. Tetreault and S. J. H. Buiter J. L. Tetreault and S. J. H. Buiter [email protected] Received and published: 30 October 2014 Response to Review C472: M. Pubellier I thank M. Pubellier for his in-depth review; the suggestions are very constructive and have truly improved the manuscript. I will first reply to the review letter below, and then to points in the supplement that need further explanation/discussion. Otherwise, if the point is not addressed, it has simply been corrected. In the review letter, the reviewer writes: I agree with most of the results presented in this paper but I regret a bit that the empha- C1212 sis was a bit too much on ancient examples (except the Solomon Islands and Taiwan that has been just mentioned). The authors could give more attention to the recent examples such as Southeast Asia. I have suggested some examples (which of course are those I know well) for reference; but there are others. I am sorry to have put some references of papers for which I participated but it is just for the sake of discussion. I think some examples of recent tectonics bring elements in this interesting discussion. The reviewer comments that my paper is quite heavy on ancient examples of accreted terranes, and I admit, now looking back on my review, that it was done so, albeit sub- consciously.
    [Show full text]
  • Download Pdf File
    Vol. 45 - N. 2 SUPPLEMENT Bollettino di Geofisica teorica ed applicata An International Journal of Earth Sciences Guest Editors: J. Carcione, F. Donda, E. Lodolo International Symposium on the Geology and Geophysics of the Southernmost Andes, the Scotia Arc and the Antarctic Peninsula Extended Abstracts of the GeoSur2004 International Symposium 22-23 November, 2004 Buenos Aires, Argentina Istituto Nazionale di Oceanografia ISSN 0006-6729 e di Geofisica Sperimentale Responsibility for all statements made in B.G.T.A. lies with the authors Cover design and typesetting: Nino Bon – OGS Printing: Centro Box SRL – Buenos Aires, Argentina Authorized by the Tribunale di Trieste, n. 242, September 17, 1960 INTERNATIONAL SYMPOSIUM International Symposium on the Geology and Geophysics of the Southernmost Andes, the Scotia Arc and the Antarctic Peninsula 22-23 November 2004 Buenos Aires, Argentina EXTENDED ABSTRACTS GEOSUR2004 22-23 NOVEMBER 2004 – BUENOS AIRES ORGANIZERS ISTITUTO NAZIONALE DI OCEANOGRAFIA E DI GEOFISICA SPERIMENTALE - OGS, TRIESTE, ITALY INSTITUTO DE GEOFÍSICA “DANIEL A. VALENCIO”, DEPARTAMENTO DE GEOLOGÍA, UNIVERSIDAD DE BUENOS AIRES, ARGENTINA SPONSORS ITALIAN EMBASSY IN ARGENTINA PROGRAMMA NAZIONALE DI RICERCHE IN ANTARTIDE (P.N.R.A.) EAGE-SEG Italian Section 4 GEOSUR2004 22-23 NOVEMBER 2004 – BUENOS AIRES SCIENTIFIC COMMITTEE G. BRANCOLINI - OGS, Trieste A. CAMERLENGHI - OGS, Trieste M. CANALS - University of Barcelona J.M. CARCIONE - OGS, Trieste A.H. COMÍNGUEZ - CONICET, University of La Plata I.W.D. DALZIEL - University of Texas at Austin E. DOMACK - Hamilton College, New York F. HERVÉ - University of Santiago R. LARTER - British Antarctic Survey S. MARENSSI - IAA, Buenos Aires G. PANZA - University of Trieste C.
    [Show full text]
  • Geographic/Site Index
    OCEAN DRILLING PROGRAM CUMULATIVE INDEX GEOGRAPHIC AND SITE INDEX AABW • Africa SW 1 A Aeolian Islands morphology, 107A2:9 AABW. See Antarctic Bottom Water obsidian, 152B7:85–91 AAIW. See Antarctic Intermediate Water Afanasiy-Nikitin Seamount (Indian Ocean equatorial) Abaco event, geology, 101B27:428–430; 29:467 comparison to Ninetyeast and Chagos-Laccadive Abakaliki uplift ridges, 116B23:28 sedimentary instability, 159B10:95 deformation effects, 116B22:272 thermal history, 159B10:97–99 emplacement, 116B23:281, 283 ABC system. See Angola-Benguela Current system gravity anomalies, 116B23:281–283, 286–288 Abrakurrie limestone (Great Australian Bight) load models, 116B23:283–289 biostratigraphy, 182B3:17 location, 116A7:197–198 equivalents, 182A2:8; 182B1:6; 4:11 sediment source, 116B17:208 Absecon Inlet Formation (New Jersey coastal plain) seismic reflection profiling, 116B23:282–283 biostratigraphy, 150X_B10:118–120, 122; Afar hotspot, Red Sea, 123B42:797 174AX_A1:38; 174AXS_A2:38, 40 Afar Triangle-Bay of Aden rift system, volcanism, clay mineralogy, 150X_B5:60–63 123B10:210 lithostratigraphy, 150X_B2:19–20; 174AX_A1:22, 24; Afghanistan. See Zhob Valley 174AXS_A2:29–31, 53 Africa stratigraphy, 150X_B1:8–10; 18:243–266; aridification, 108B1:3 174AXS_A2:3 biostratigraphy, 120B(2)62:1083 Abu Madi sands (Egypt), sediments, 160B38:496 clast lithology, 160B45:585–586 Acadian orogeny climate cycles, 108B14:221 muscovite, 210B4:4 geodynamics, 159B5:46–47 tectonics, 103B1:10 glacial boundary changes, 108B14:222; 117B19:339 ACC. See Antarctic Circumpolar Current mass accumulation rates, 159B43:600 ACGS unit (New Jersey coastal plain), lithology, paleoclimatology, 160B19:327–328 150X_A1:23–24 paleopoles, 159B20:203 ACGS#4 borehole sandstone, 160B45:584 biofacies, 150X_B16:207–228 seafloor spreading, 120B(2)50:920 Oligocene, 150X_B8:81–86 See also Kalahari region (Africa); North Africa paleoenvironment, 150X_B17:239 Africa E, active rifting, 121A1:8 ACZ.
    [Show full text]
  • INA Newsletter Vol 14 Part 3 1992
    1413 NEWSLETTER INTERNATIONAL NANNOPLANKTON ASSOCIATION VOLUME 14 NUMBER 3 1992 THE INTERNATIONAL NANNOPLANKTON ASSOCIATION PRESIDENT NEWSLETTER EDITOR Katharina von Salis Perch-Nielsen Jeremy R. Young Geologisches lnstitut ETH-Z Palaeontology Dept. CH-8092 Zurich The Natural History Museum Switzerland London SW7 5BD, UK Tel. 41-(0) 1-256-3695 Tel. 44-(0)71-938-8996 Fax. 41-(0) 1-256-081 9 Fax. 44-(0)71-938-9277 EMAIL [email protected] SECRETARY Kevin Cooper DEPUTY EDITOR Stratigraphic Services lnt. Paul R. Bown Surrey Research Park Micropala~ontology Unit Guildford GU2 5YL, UK University College London Fax 44-(0)483-311 06 London WC1 E 6BT, UK Fax. 44-(0)71-387-8057 TREASURER Nicky Hine BIBLIOGRAPHER British Geological Survey William G. Siesser Key worth Dept. of Geology Nottingham NG 12 5GG, UK Vanderbilt University Fax 44-(0)602-363200 Nashville Tennessee 37235, USA US TREASURER Stephan A. Root SILICOFLAGELLATE BIBLIOGRAPHER Mobil EPSI Stacia Spaulding P.O. Box 650232 1929 Brighton Place Dallas Harvey Texas 75265-0232, USA Louisiana 70058, USA NOMENCLATURAL SECRETARY ODP CORRESPONDENT Shirley E. van Heck John Firth Sarawak Shell Berhad Ocean Drilling Project Sabah Shell Petroleum Texas A&M University Lutong College Station Sarawak, Malaysia Texas 77840, USA INA MEMBERSHIP: Open to anyone interested, on receipt of subscription. Subscription is £12 (students £6) per annum. Send to Treasurer. Or $20 (Students $1 0), send to US Treasurer. Membership queries and changes of address send to Secretary. BIBLIOGRAPHIES: Please send reprints of any coccolith, calcisphere or silicoflagellate articles to the relevant bibliographer. BACK ISSUES: All issues available, except 7/2 and 11/2 (conference abstracts).
    [Show full text]
  • A Review of Pangaea Dispersal and Large Igneous Provinces – in Search of a T Causative Mechanism ⁎ Alexander L
    Earth-Science Reviews 206 (2020) 102902 Contents lists available at ScienceDirect Earth-Science Reviews journal homepage: www.elsevier.com/locate/earscirev A review of Pangaea dispersal and Large Igneous Provinces – In search of a T causative mechanism ⁎ Alexander L. Peacea,b, , Phethean J.J.J.c, Franke D.d, Foulger G.R.e, Schiffer C.e,f, Welford J.K.a, McHone G.g, Rocchi S.h, Schnabel M.d, Doré A.G.i a Department of Earth Sciences, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada b School of Geography and Earth Sciences, McMaster University, Hamilton, Ontario, Canada c School of Environmental Sciences, University of Derby, Kedleston Road, Derby, UK d Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover, Germany e Department of Earth Sciences, Durham University, Durham, UK f Department of Earth Sciences, Uppsala University, 75236 Uppsala, Sweden g Dexters Lane, Grand Manan, New Brunswick E5G3A6, Canada h Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy i Equinor (UK) Ltd., One Kingdom Street, London W2 6BD, UK ABSTRACT The breakup of Pangaea was accompanied by extensive, episodic, magmatic activity. Several Large Igneous Provinces (LIPs) formed, such as the Central Atlantic Magmatic Province (CAMP) and the North Atlantic Igneous Province (NAIP). Here, we review the chronology of Pangaea breakup and related large-scale magmatism. We review the Triassic formation of the Central Atlantic Ocean, the breakup between East and West Gondwana in the Middle Jurassic, the Early Cretaceous opening of the South Atlantic, the Cretaceous separation of India from Antarctica, and finally the formation of the North Atlantic in the Mesozoic-Cenozoic.
    [Show full text]
  • Upper Cretaceous Calcareous Nannofossil Biostratigraphy and Paleoceanography of the Southern Ocean David K
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Papers in the Earth and Atmospheric Sciences Earth and Atmospheric Sciences, Department of 1996 Upper Cretaceous Calcareous Nannofossil Biostratigraphy and Paleoceanography of the Southern Ocean David K. Watkins University of Nebraska-Lincoln, [email protected] Sherwood W. Wise Jr. Florida State University James J. Popsichal Florida State University Jason Crux BP Exploration Follow this and additional works at: http://digitalcommons.unl.edu/geosciencefacpub Part of the Earth Sciences Commons Watkins, David K.; Wise, Sherwood W. Jr.; Popsichal, James J.; and Crux, Jason, "Upper Cretaceous Calcareous Nannofossil Biostratigraphy and Paleoceanography of the Southern Ocean" (1996). Papers in the Earth and Atmospheric Sciences. 258. http://digitalcommons.unl.edu/geosciencefacpub/258 This Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in the Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Watkins, Wise, Pospichal & Crux in Microfossils and Ocean Environments, Moguilevsky & Whatley, eds. Proceedings of the "ODP and the Marine Biosphere" International Conference (Aberystwyth, Wales, April 19-21, 1994) Copyright 1996, University of Wales. Used by permission. 5.4 Upper Cretaceous calcareous nannofossil biostratigraphy and paleoceanography of the Southern Ocean David K. Watkins l , Sherwood W. Wise, Jr.2, James J. Pospichal2, Jason Crux3 1Department of Geology, University of Nebraska, Lincoln, NE 68588-0340, USA 2Department of Geology, Florida State University, Tallahassee, Florida 32306, USA 3BP Exploration, 5151 San Felipe, Houston, Texa, USA ABSTRACT Nannofossil data from the Naturaliste Plateau from these assemblages, but relatively few «5) (DSDP Legs 26 & 28), Falkland Plateau (DSDP high-latitude endemic species are evident.
    [Show full text]
  • 4.1 Oceanic Plateaus, Submarine Ridges, and Seamounts: General Setting
    4.1 Oceanic plateaus, submarine ridges, and seamounts: general setting Oceanic plateaus, submarine ridges, and seamounts (Figures 4, 5) are mafic igneous regions with crust that is thicker than the surrounding oceanic crust, and are often difficult to differentiate from 340 one another as accreted terranes (Kerr, 2003). Oceanic plateaus, submarine ridges, and seamounts all form due to excess magmatism breaching the oceanic plate. Historically, the term “oceanic plateau” has included a large range of geographic features, from extinct mid-ocean ridges, continen- tal plateaus, remnant island arcs, oceanic flood basalts, submarine ridges, seamount chains, to hot spot tracks in the global compilations of Ben-Avraham et al. (1981); Schubert and Sandwell (1989); 345 Marks and Sandwell (1991). Now, oceanic plateaus are defined as a type of large igneous province (LIP) formed on oceanic crust. They are vast, wide regions of anomalously thick igneous crust and are submarine analogues to continental flood basalts (Kerr, 2003; Kerr and Mahoney, 2007). LIPS are large igneous regions on continental or oceanic crust that were rapidly emplaced (within short pulses of 1 - 5 Myr) over areas of more than 100,000 km2 (Coffin and Eldholm, 1992, 1994; Bryan 350 and Ernst, 2008). The origin of oceanic plateaus has been a point of vigorous discussion in the literature in terms of whether the feeder magmas originate from deep plumes or in the upper man- tle based on geochemical signatures and geodynamic models (Richards et al., 1989; Foulger, 2007; Campbell and Kerr, 2007; Hastie and Kerr, 2010; Hoernle et al., 2010). Several modern oceanic plateaus were emplaced during the Cretaceous and were later rifted apart at triple junctions, such 355 as the Kerguelen-Broken Ridge (Frey et al., 2000), Manihiki-Hikurangi-Ontong Java (Taylor, 2006; Davy et al., 2008), and Agulhas-Maud Rise-Northeast Georgia Rise plateaus (Parsiegla et al., 2008).
    [Show full text]
  • Back Matter (PDF)
    Index Note: Page numbers relating to figures are denoted in italics, page number relating to tables are in bold type. accretionary wedge 85, 112, 211 Anatolian Block 92, 95 basement see pre-existing structures African plate 255–284, Andaman Sea 107 basins 5–6, 319, 345 256–257, 279, 282, 355 Anger-re´t Mine 422, 426 boundary fault 152 Afrin fault 281 fault overlaps 423 Cenozoic basin models 307–309 Agua Blanca fault 148 stereograms 425 Cenozoic basins 338–340 Aj Bogd 229 stress regime 426 coalescing 45 Akato Tagh bend 58, 100, 107 transtensional relay ramp 422, 423 cross basin faults 122 Akkar fault 289 angle of convergence 382–383, 384 deeps 46 Aksu Plain 258 angle of divergence 433, 434, 434, evolutionary model 35–36 Aktepe neck 262–263, 273 435, 436, 437, 443 extinction 122 Alleghenian–Ouachita Orogeny 112 Antarctic plate 204 formation 2, 50 Alpine fault 87–90, 88, 90, Anti-Lebanon Range 280, 285, geometry 45, 51, 63 96–97, 99 287–289, 290, 299 inversion 4, 45, 46, 163, 164, Alpine-Carpathian Orogen 96–97, apatite fission track 60, 325, 165, 317–318, 318, 99, 419 329–331, 332, 334, 335 321, 345 Alps Appalachian Mountains 37 sedimentation 47, 155 kinematic evolution 352–355 Ar Ho¨to¨l fault 229 spindle shaped 68, 87 present day activity 355–356 Ar/Ar dating 255–284, 266, 267, termination basins 38 regional geology 351–356 282, 331, 334, 456 transcurrent fault zone 203–217 regional kinematics 362 Arabian plate 97, 255–284, 256–257 see also pull apart basins; seismicity 355 motion 103, 279, 282, 286, 287, rhomboidal basins stratigraphy
    [Show full text]
  • The Agulhas Plateau: Structure and Evolution of a Large Igneous Province
    Geophys. J. Int. (2008) 174, 336–350 doi: 10.1111/j.1365-246X.2008.03808.x The Agulhas Plateau: structure and evolution of a Large Igneous Province N. Parsiegla, K. Gohl and G. Uenzelmann-Neben Alfred Wegener Institute for Polar and Marine Research, PO Box 12161, 27515 Bremerhaven, Germany. E-mail: [email protected] Accepted 2008 March 28. Received 2008 March 13; in original form 2008 January 5 SUMMARY Large Igneous Provinces (LIP) are of great interest due to their role in crustal generation, magmatic processes and environmental impact. The Agulhas Plateau in the southwest Indian Ocean off South Africa has played a controversial role in this discussion due to unclear evidence for its continental or oceanic crustal affinity. With new geophysical data from seismic refraction and reflection profiling, we are able to present improved evidence for its crustal structure and composition. The velocity–depth model reveals a mean crustal thickness of 20 km with a maximum of 24 km, where three major units can be identified in the crust. In our seismic reflection records, evidence for volcanic flows on the Agulhas Plateau can be observed. The middle crust is thickened by magmatic intrusions. The up to 10 km thick lower crustal body is characterized by high seismic velocities of 7.0–7.6 km s−1. The velocity–depth distribution suggests that the plateau consists of overthickened oceanic crust similar to other oceanic LIPs such as the Ontong-Java Plateau or the northern Kerguelen Plateau. The total volume of the Agulhas Plateau was estimated to be 4 × 106 km3 of which about 10 per cent consists of extruded igneous material.
    [Show full text]