georefid:2005-004700georefid:2005-004697SEDIS 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.192.106.2004<gco:CharacterString>Strontium isotope stratigraphy of Cretaceous sediments at Sites 1183 and 1186, Ontong Java Plateau</gco:CharacterString>2004-01-01publicationgeorefid:2005-004700doi:10.2973/odp.proc.sr.192.106.2004Bralower, Timothy J.Pennsylvania State University, Department of Geosciences, University Park, PA, United StatesauthorFullagar, Paul D.University of Hawaii at Manoa, United StatesauthorMcCay, Taylor A.Ocean Drilling Program, United StatesauthorMacLeod, Kenneth G.Ludwig-Maximilians-Universitaet Muenchen, Federal Republic of GermanyauthorBergen, James A.University of Victoria, CanadaauthorZapata, EgleeUniversity of North Carolina, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Fitton, J. Godfrey, Mahoney, John J., Wallace, Paul J., Antretter, Maria J., Banerjee, Neil R., Bergen, James A., Cairns, Graeme, Castillo, Paterno R., Chambers, Lynne M., Chazey, William J., III, Coffin, Millard F., Godard, Marguerite M., Hall, Stuart A., Honnorez, Jose, Ingle, Stephanie P., Kroenke, Loren W., MacLeod, Kenneth G., Naruse, Hajime, Neal, Clive R., Ogg, James G., Riisager, Peter, Sano, Takahashi, Sikora, Paul J., van der Werff, Wietze, White, Rosalind V., Zhao, Xixi, Proceedings of the Ocean Drilling Program; scientific results; basement drilling of the Ontong Java Plateau; covering Leg 192 of the cruises of the drilling vessel JOIDES Resolution; Apra Harbor, Guam, to Apra Harbor, Guam; Sites 1183-1187; 8 September-7 November 2000192Strontium isotope stratigraphy of the Cretaceous sections recovered in Holes 1183A and 1186A generally matches trends expected from the seawater Sr isotope curve. Combined with biostratigraphic data, the (super 87) Sr/ (super 86) Sr measurements provide a good chronostratigraphic framework for these holes. In the mid-Cretaceous where the seawater Sr isotopic curve changes direction several times, biostratigraphy removes ambiguity in interpreting (super 87) Sr/ (super 86) Sr values. Furthermore, (super 87) Sr/ (super 86) Sr values refine the interpretation of several mid-Cretaceous unconformities suggested by nannofossil biostratigraphy. For the Campanian-Maastrichtian sediments in both holes, ages predicted from Sr isotope stratigraphy are as much as 2.5 m.y. younger than those from nannofossil stratigraphy. This offset likely results from differences in the way that ages are calibrated to nannofossil datums and the seawater Sr isotopic curve. Numerous Sr isotope values are high for their stratigraphic position, suggesting incorporation of excess 87Sr presumably derived from terrigenous clays. Other Sr isotope values suggest minor errors in the estimated ages of nannofossil datums.completedStratigraphyIsotope geochemistryalgaealkaline earth metalsbiostratigraphybiozonesCampanianchemostratigraphychronostratigraphycoresCretaceousgeochemistryisotope ratiosisotopesLeg 192MaestrichtianMesozoicmetalsmicrofossilsnannofossilsOcean Drilling ProgramODP Site 1183ODP Site 1186Ontong Java PlateauPacific Oceanpaleo-oceanographyPlantaesedimentary rocksSenonianSr-87/Sr-86stable isotopesstrontiumUpper CretaceousWest Pacificurn:org.iodp:exp:192urnlargerWorkCitationcampaignurn:org.iodp:exp:192:site:1183urnlargerWorkCitationstudyurn:org.iodp:exp:192urnlargerWorkCitationcampaignurn:org.iodp:exp:192:site:1186urnlargerWorkCitationstudyurn:org.iodp:exp:192urnlargerWorkCitationcampaignEnglishgeoscientificInformation157.0100159.5100-1.1100-0.4100Available only on CD-ROM in PDF format and on the Web in PDF or HTML; includes appendixapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/192_SR/VOLUME/CHAPTERS/106.PDFdownload