georefid:2006-060011georefid:2006-060007SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.sr.183.002.2002<gco:CharacterString>Radiolarian faunal characteristics in the Oligocene sediments of the Kerguelen Plateau, Leg 183, Site 1138</gco:CharacterString>2003-01-01publicationgeorefid:2006-060011doi:10.2973/odp.proc.sr.183.002.2002Apel, MarcusHumboldt Universitaet Berlin, Institut fuer Palaeontologie, Berlin, Federal Republic of GermanyauthorKiessling, WolfgangUniversity of Texas at Austin, United StatesauthorBoehm, FlorianOcean Drilling Program, United StatesauthorLazarus, DavidLudwig-Maximilians-Universitaet, Federal Republic of GermanyauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Frey, Frederick A., Coffin, Millard F., Wallace, Paul J., Antretter, Maria J., Arndt, Nicholas T., Barling, Jane, Boehem, Florian, Borre, Mai Kirstine, Coxall, Helen K., Damuth, John E., Delius, Heike, Duncan, Robert A., Inokuchi, Hiroo, Keszthelyi, Laszlo, Mahoney, John J., Moore, C. Leah, Mueller, R. Dietmar, Neal, Clive R., Nicolaysen, Kirsten E., Pringle, Malcolm S., Reusch, Douglas N., Saccocia, Peter J., Teagle, Damon A. H., Waehnert, Veronika, Weis, Dominique A. M., Wise, Sherwood W., Zhao, Xixi, Quilty, Patrick G. (editor), Proceedings of the Ocean Drilling Program; scientific results; Kerguelen Plateau-Broken Ridge; a large igneous province; covering Leg 183 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Fremantle, Australia; Sites 1135-1142; 7 December 1998-11 February 1999183Three sites from Ocean Drilling Program (ODP) Leg 183 (Kerguelen Plateau) have been analyzed to document faunal change in high-latitude radiolarians and to compare the faunal change to Eocene-Oligocene climatic deterioration. Radiolarians are not preserved in Eocene sediments. In Oligocene sediments, radiolarian preservation improves in a stepwise manner toward the Miocene. A total of 115 species were found in lower Oligocene samples from Site 1138; all are documented herein. Radiolarian preservation is presumably linked to productivity triggered by climatic cooling during the early Oligocene. Similar patterns of improving preservation through the Eocene/Oligocene boundary are documented from several Deep Sea Drilling Project and ODP sites in the Southern Ocean, indicating a general pattern. In contrast to the Southern Kerguelen Plateau, however, proxies for productivity are more divergent at Site 1138 (Central Kerguelen Plateau). Whereas carbonate dissolution, as indicated by poor preservation of foraminifers and common hiatuses, is very pronounced in the upper Eocene-lowermost Oligocene, the quality of radiolarian and diatom preservation does not significantly increase until the uppermost lower Oligocene. Multiple measures of radiolarian diversity in the Oligocene from Site 1138 closely parallel radiolarian preservation, indicating that preserved radiolarian diversity is controlled by productivity.completedStratigraphybiostratigraphyCenozoiccoresIndian OceanInvertebrataKerguelen PlateauLeg 183microfossilsOcean Drilling ProgramODP Site 1138OligocenepaleoclimatologypaleoenvironmentPaleogenepaleomagnetismProtistaRadiolariareconstructionSouthern Oceanspecies diversityTertiaryurn:org.iodp:exp:183urnlargerWorkCitationcampaignurn:org.iodp:exp:183:site:1138urnlargerWorkCitationstudyurn:org.iodp:exp:183urnlargerWorkCitationcampaignEnglishgeoscientificInformation75.583075.5830-53.5506-53.5506Includes appendix; available only on CD-ROM in PDF format and on the Web in PDF or HTMLapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/183_SR/VOLUME/CHAPTERS/002.PDFdownload