georefid:2010-042761SEDIS Publication Catalogue
ana.macario@awi.de
http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-07-06T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2010-042761<gco:CharacterString>Late Pliocene climate change in the middle to high latitude region of Northern Hemisphere as seen from calcareous nannofossil assemblages</gco:CharacterString>2007-01-01publicationgeorefid:2010-042761Sato, TokiyukiAkita University, Institute of Applied Earth Sciences, Akita, JapanauthorPalaeontological Society of Japan, [Tokyo], JapanpublisherdocumentHardcopyKaseki = Fossils8260-66I reconstruct the late Pliocene to Quaternary paleoceanography of the north Pacific, Arctic, and north Atlantic Ocean based on geographical distribution of cold water nannofossil Coccolithus pelagicus (Wallich) Schiller. Since the species drastically increased at 2.75 Ma in the Arctic Ocean and high latitude regions of western marginal sea of both Pacific and Atlantic Oceans, it decreased at the central to eastern north Atlantic Ocean at 2.9-2.8 Ma just before 2.75 Ma event. This indicates that strengthening of north Atlantic thermohaline circulation just before 2.75 Ma induced an intensified moisture supply to northern high latitude, and resulted in drastically increase of Northern Hemisphere glaciation at 2.75 Ma. Although the abundance of C. pelagicus in the central to eastern north Atlantic Ocean is low until 2.38 Ma, it suddenly increased just after the time. The same characteristics are also found in the middle latitude region of eastern Pacific Ocean at that time. These results indicate that the influence of the late Pliocene glaciation increased in two steps at 2.75 Ma and 2.38 Ma in the Northern Hemisphere.completedStratigraphyalgaeArctic OceanAtlantic OceanCenozoicclimate changeCoccolithophoraceaeCoccolithusCoccolithus pelagicusDeep Sea Drilling ProjectDSDP Site 292DSDP Site 577DSDP Site 606DSDP Site 608DSDP Site 609DSDP Site 611East PacificEmperor SeamountsGorda RiseIPODLeg 125Leg 145Leg 150Leg 151Leg 167Leg 31Leg 86Leg 94marine environmentmicrofossilsMid-Atlantic RidgeNeogeneNorth AtlanticNorth PacificNortheast AtlanticNortheast PacificNorthwest AtlanticNorthwest PacificNorwegian SeaOcean Drilling ProgramODP Site 1010ODP Site 1016ODP Site 1020ODP Site 1021ODP Site 782ODP Site 881ODP Site 882ODP Site 883ODP Site 887ODP Site 905ODP Site 907ODP Site 910ODP Site 911ODP Site 913Pacific Oceanpaleo-oceanographypaleoclimatologypaleoenvironmentPhilippine SeaPlantaePliocenequantitative analysisQuaternaryShatsky RiseTertiarythermohaline circulationupper PlioceneWest PacificYermak Plateauurn:org.iodp:exp:125urnlargerWorkCitationcampaignurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:150urnlargerWorkCitationcampaignurn:org.iodp:exp:151urnlargerWorkCitationcampaignurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:31urnlargerWorkCitationcampaignurn:org.iodp:exp:86urnlargerWorkCitationcampaignurn:org.iodp:exp:94urnlargerWorkCitationcampaignurn:org.iodp:exp:31:site:292urnlargerWorkCitationstudyurn:org.iodp:exp:31urnlargerWorkCitationcampaignurn:org.iodp:exp:86:site:577urnlargerWorkCitationstudyurn:org.iodp:exp:86urnlargerWorkCitationcampaignurn:org.iodp:exp:94:site:606urnlargerWorkCitationstudyurn:org.iodp:exp:94urnlargerWorkCitationcampaignurn:org.iodp:exp:94:site:608urnlargerWorkCitationstudyurn:org.iodp:exp:94urnlargerWorkCitationcampaignurn:org.iodp:exp:94:site:609urnlargerWorkCitationstudyurn:org.iodp:exp:94urnlargerWorkCitationcampaignurn:org.iodp:exp:94:site:611urnlargerWorkCitationstudyurn:org.iodp:exp:94urnlargerWorkCitationcampaignurn:org.iodp:exp:167:site:1010urnlargerWorkCitationstudyurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:167:site:1016urnlargerWorkCitationstudyurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:167:site:1020urnlargerWorkCitationstudyurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:167:site:1021urnlargerWorkCitationstudyurn:org.iodp:exp:167urnlargerWorkCitationcampaignurn:org.iodp:exp:125:site:782urnlargerWorkCitationstudyurn:org.iodp:exp:125urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:881urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:882urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:883urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:887urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:150:site:905urnlargerWorkCitationstudyurn:org.iodp:exp:150urnlargerWorkCitationcampaignurn:org.iodp:exp:151:site:907urnlargerWorkCitationstudyurn:org.iodp:exp:151urnlargerWorkCitationcampaignurn:org.iodp:exp:162:site:907urnlargerWorkCitationstudyurn:org.iodp:exp:162urnlargerWorkCitationcampaignurn:org.iodp:exp:151:site:910urnlargerWorkCitationstudyurn:org.iodp:exp:151urnlargerWorkCitationcampaignurn:org.iodp:exp:151:site:911urnlargerWorkCitationstudyurn:org.iodp:exp:151urnlargerWorkCitationcampaignurn:org.iodp:exp:151:site:913urnlargerWorkCitationstudyurn:org.iodp:exp:151urnlargerWorkCitationcampaignJapanesegeoscientificInformation-35.1154138.000012.000080.2830