georefid:2006-060883georefid:2006-060877SEDIS 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.185.011.2003<gco:CharacterString>Cretaceous radiolarian biochronology and carbon isotope stratigraphy of ODP Site 1149 (northwestern Pacific, Nadezhda Basin)</gco:CharacterString>2006-01-01publicationgeorefid:2006-060883doi:10.2973/odp.proc.sr.185.011.2003Bartolini, AnnachiaraUniversite de Lausanne, Institut de Geologie et Paleontologie, Lausanne, SwitzerlandauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Ludden, John N. (editor), Plank, Terry (editor), Escutia, Carlota (editor), Abrams, Lewis J., Alt, Jeffrey C., Armstrong, Robin N., Barr, Samantha, Bartolini, Annachiara, Cairns, Graeme, Fisk, Martin R., Guerin, Gilles, Haveman, Shelley A., Hirono, Tetsuro, Honnorez, Jose, Kelley, Katherine A., Larson, Roger L., Lozar, Francesca M., Murray, Richard W., Pletsch, Thomas K., Pockalny, Robert A., Rouxel, Olivier, Schmidt, Angelika, Smith, David C., Spivack, Arthur J., Staudigel, Hubert, Steiner, Maureen B., Valentine, Robert B., Proceedings of the Ocean Drilling Program; scientific results, Izu-Mariana Margin; covering Leg 185 of the drilling vessel JOIDES Resolution; Hong Kong, People's Republic of China, to Yokohama, Japan; Sites 801 and 1149; 12 April-14 June 1999185In the Nadezhda Basin (northwestern Pacific), the contact between oceanic crust basalt and its sedimentary cover was recovered at Site 1149 during Leg 185. The bottom sedimentary section (Unit IV) is characterized by interbedded radiolarian chert and radiolarian nannofossil chalk/marl. This peculiar lithology for the western Pacific has allowed an approach of integrated stratigraphy between radiolarians and carbon isotope data. The upper Valanginian delta (super 13) C positive excursion, correlatable to magnetic Chron M11, was individuated. Biochemostratigraphy constrains the calibration of the positive magnetic lineation at Site 1149 as Chron M12r. Moreover, these data confirm the upper Valanginian delta 13C positive excursion as a global event, probably linked to high primary productivity.completedStratigraphybeddingbiostratigraphybiozonesC-13/C-12carbonchemostratigraphyCretaceousInvertebrataisotope ratiosisotopesLeg 185Lower CretaceousMesozoicmicrofossilsNadezhda BasinNorth PacificNorthwest PacificOcean Drilling ProgramODP Site 1149Pacific Oceanplanar bedding structuresProtistaRadiolariasedimentary structuresspecies diversitystable isotopesValanginianWest Pacificurn:org.iodp:exp:185urnlargerWorkCitationcampaignurn:org.iodp:exp:185:site:1149urnlargerWorkCitationstudyurn:org.iodp:exp:185urnlargerWorkCitationcampaignEnglishgeoscientificInformation143.2100143.210031.203031.2030Available 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/185_SR/VOLUME/CHAPTERS/011.PDFdownload