georefid:2011-078987SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1016/j.jseaes.2010.09.0152011-01-01publicationgeorefid:2011-078987doi:10.1016/j.jseaes.2010.09.015Chen, Huei-FenNational Taiwan Ocean University, Institute of Applied Geosciences, Keelung, TaiwanauthorChang, Yuan-PinInstitute of Earth Environment, ChinaauthorKao, Shuh-JiNational Sun Yat-sen University, TaiwanauthorChen, Min-TeAcademia Sinica, TaiwanauthorSong, Sheng-RongNational Taiwan University, TaiwanauthorKuo, Li-WeiauthorWen, Shie-YingauthorYang, Tien-NanauthorLee, Teh-QueiauthorElsevier, Oxford, United KingdompublisherdocumentHardcopyIn: Chen, Min-Te (editor), Sun Youbin (editor), An Zhisheng (editor), Quaternary paleoclimate of the western Pacific and east Asia; state of the art and new discovery40 (6)1238-1249We present a mineralogical and geochemical study of core MD012404, retrieved from the central Okinawa Trough (OT) of the East China Sea. Our studies reveal that the sediment sources of the core have been changed through time during the past 100 ka. Our mineralogical proxies indicate that the sediments source from the Yangtze River correlates well sea-level changes before 24 ka. Our Ti/Al ratios otherwise indicate an increase of sediment supply from eastern Taiwan after 26 ka. The cooler climate of the Last Glacial Maximum (LGM, 23 approximately 19 ka) led to a reduction in fluvial sediments from the Yangtze River. However, subsequent climate warming (after approximately 19 ka) resulted in an abrupt increase in fluvial sediments. After the LGM, the Kuroshio intrusion flow into the OT may have increased. We also infer anomalous changes in eolian sources transported by winter monsoons during the LGM and at 80 ka based on an eolian mineralogical indicator (feldspar). We conclude that the sediment source of core MD012404 is primarily of terrestrial origins, but influenced by sea-level changes and variations in the East Asian monsoon. Abstract Copyright (2011) Elsevier, B.V.completedQuaternary geologySedimentary petrologyabsolute ageaccelerator mass spectraAsiabasinsC-14carbonCenozoicchemical compositionChinaclimate changecurrentsdatesdepositional environmentdetrital sedimentationFar EastForaminiferageochemistryGlobigerinaceaGlobigerinidaeGlobigerinoidesGlobigerinoides ruberInvertebrataisotopesKuroshiolast glacial maximumLeg 195major elementsmarine sedimentationmarine sedimentsmass spectramicrofossilsmineral compositionmonsoonsNorth PacificNorthwest Pacificocean currentsOcean Drilling ProgramODP Site 1202Okinawa TroughPacific Oceanpaleo-oceanographypaleoclimatologypaleoenvironmentPleistoceneProtistaprovenanceQuaternaryradioactive isotopesRotaliinasea-level changessedimentary petrologysedimentationsedimentsspectraTaiwantroughsupper PleistoceneWest PacificX-ray diffraction dataX-ray fluorescence spectraYangtze Riverurn:org.iodp:exp:195urnlargerWorkCitationcampaignurn:org.iodp:exp:195:site:1202urnlargerWorkCitationstudyurn:org.iodp:exp:195urnlargerWorkCitationcampaignEnglishgeoscientificInformation122.3000125.500024.480026.4000