georefid:2000-080037georefid:2000-080016SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.2973/odp.proc.sr.167.242.20002000-01-01publicationgeorefid:2000-080037doi:10.2973/odp.proc.sr.167.242.2000Bennett, J. P.University of California at at Santa Barbara, Department of Geological Sciences, Santa Barbara, CA, United StatesauthorRoark, E. B.Hokkaido University, JapanauthorCannariato, K. G.Ocean Drilling Program, United StatesauthorIngram, B. L.California State University at Long Beach, United StatesauthorTada, RyujiStockholm University, SwedenauthorTexas A & M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Lyle, Mitchell, Koizumi, Itaru, Richter, Carl, Behl, Richard J., Boden, Per, Caulet, Jean-Pierre, Delaney, Margaret L., deMenocal, Peter, Desmet, Marc, Fornaciari, Eliana, Hayashida, Akira, Heider, Franz, Hood, Julie A., Hovan, Steven A., Janecek, Thomas R., Janik, Aleksandra G., Kennett, James P., Lund, David, Machain Castillo, Maria L., Maruyama, Toshiaki, Merrill, Russell B., Mossman, David J., Pike, Jennifer, Ravelo, A. Christina, Rozo Vera, Gloria A., Stax, Rainer, Tada, Ryuji, Thurow, Juergen W., Yamamoto, Masanobu, Nessler, Susan (editor), Miller, Christine M. (editor), Peters, Lorri L. (editor), Proceedings of the Ocean Drilling Program, scientific results, California margin; covering Leg 167 of the cruises of the drilling vessel JOIDES Resolution, Acapulco, Mexico, to San Francisco, California, sites 1010-1022, 20 April-16 June 1996167249-254Oxygen isotopic (delta (super 18) O) climatic stratigraphy and radiocarbon chronology, at high resolution, have been used to establish an age model for Ocean Drilling Program Hole 1017E, a continuous 25-m sequence of hemipelagic sediments from the continental slope (956 m water depth), east of Point Arguella, Southern California. The upper part of Hole 1017E from approximately 33 ka (7.445 mbsf) was dated using 13 calendar-corrected radiocarbon ages of mixed planktonic foraminiferal assemblages. Benthic oxygen isotopic stratigraphy records a continuous 130-k.y. sequence ranging from marine isotope Stage 6 to the present day. The benthic delta (super 18) O curve, representing the last two interglacial and glacial cycles, closely resembles the well-dated, deep-sea reference sequence, providing a detailed chronologic framework. Sedimentation rates remained relatively constant throughout the sequence at approximately 18 cm/k.y. and were sufficiently rapid to provide considerable potential for high-resolution paleoceanographic/paleoclimatic investigations. Planktonic foraminiferal oxygen isotopic stratigraphy based on the surface-dwelling form Globigerina bulloides defines an almost complete sequence of interstadial/stadial oscillations (Dansgaard/Oeschger cycles [D/O]). Combined use of radiocarbon chronology, deep-sea oxygen isotopic datums, and visual pattern matching has enabled us to identify the sequence of D/O cycles as described for the Greenland (GRIP2) ice core. This has strengthened the stratigraphic framework for the last 60 k.y. in the sequence as a basis for further paleoenvironmental investigations.completedQuaternary geologyabsolute ageassemblagesC-14CaliforniacarbonCenozoicchemostratigraphyclimate changecontinental marginDansgaard-Oeschger cyclesdatesdepositional environmentEast PacificForaminiferaglacial sedimentationglaciomarine sedimentationGlobigerinaGlobigerina bulloidesGlobigerinaceaGlobigerinidaeInvertebrataisotope ratiosisotopesLeg 167marine sedimentationmicrofossilsNorth PacificNortheast PacificO-18/O-16Ocean Drilling ProgramODP Site 1017oxygenPacific OceanpaleoclimatologyProtistaQuaternaryradioactive isotopesRotaliinasedimentationsedimentation ratesSouthern Californiastable isotopesUnited Statesupper Quaternaryurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:167:site:1017urnlargerWorkCitationstudyurn:org.iodp:exp:167urnlargerWorkCitationcampaignEnglishgeoscientificInformation-121.0625-121.062534.320534.3205application/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

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