georefid:2005-011452georefid:2005-011446SEDIS Publication Catalogue

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http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.sr.189.109.20042004-01-01publicationgeorefid:2005-011452doi:10.2973/odp.proc.sr.189.109.2004Stant, S. AudraFlorida State University, Department of Geological Sciences, Tallahassee, FL, United StatesauthorLara, JonathanUniversity of California at Santa Barbara, United StatesauthorRoessig, Kristeen L. McGonigalOcean Drilling Program, United StatesauthorLadner, Bryan C.Utrecht University, NetherlandsauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Exon, Neville F., Kennett, James P., Malone, Mitchell J., Brinkhuis, Henk, Chaproniere, George C. H., Ennyu, Atsuhito, Fothergill, Patrick, Fuller, Michael D., Grauert, Marianne, Hill, Peter J., Janecek, Thomas R., Kelly, Daniel C., Latimer, Jennifer C., Nees, Stefan, Ninnemann, Ulysses S., Nuernberg, Dirk, Pekar, Stephen F., Pellaton, Caroline C., Pfuhl, Helen A., Robert, Christian M., Roessig, Kristeen L. McGonigal, Roehl, Ursula, Schellenberg, Stephen A., Shevenell, Amelia E., Stickley, Catherine E., Suzuki, Noritoshi, Touchard, Yannick, Wei, Wuchang, White, Timothy S., Proceedings of the Ocean Drilling Program; scientific results; the Tasmanian gateway; Cenozoic climatic and oceanographic development; covering Leg 189 of the cruises of the drilling vessel JOIDES Resolution; Hobart, Tasmania, to Sydney, Australia; Sites 1168-1172; 11 March-6 May 2000189Quaternary sediments were recovered at all five sites drilled during Ocean Drilling Program (ODP) Leg 189 in the Tasmanian Gateway. Two of these sites lie north of the present-day Subtropical Front (STF), and three sites lie south of the STF. Quaternary sediments recovered at Sites 1168, 1170, 1171, and 1172 were studied in detail to determine the calcareous nannofossil biostratigraphy and construct an age model for these sediments. The Pliocene/Pleistocene boundary was identified by the last occurrence (LO) of Discoaster brouweri at Site 1172 and approximated by the LO of Calcidiscus macintyrei at the other sites because of a lack of discoasterids. A hiatus encompassing the entire Helicosphaera sellii Zone was tentatively identified at Sites 1168 and 1172 by the coincident LOs of C. macintyrei and H. sellii. Similar hiatuses have been noted at ODP Site 1127 on the Great Australian Bight, Deep Sea Drilling Project Site 282 off the Tasman subcontinent, and ODP Site 1165 in Prydz Bay, Antarctica.completedQuaternary geologyalgaebiostratigraphybiozonesCenozoiccorescorrelationgatewaysIndian OceanLeg 189marine environmentmicrofossilsmodelsnannofossilsOcean Drilling ProgramPacific Oceanpaleo-oceanographypaleoecologypaleoenvironmentPlantaePleistoceneQuaternarysedimentationsedimentation ratesSouth PacificSouthwest Pacificspecies diversityTasman SeaWest Pacificurn:org.iodp:exp:189urnlargerWorkCitationcampaignEnglishgeoscientificInformation144.0000150.0000-48.3000-42.3000Available only on CD-ROM in PDF format and on the Web in PDF or HTML; includes appendixapplication/pdfunknownSEDIS Publication Catalogue

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