georefid:2008-114477SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2008-114477<gco:CharacterString>Characterizing ice sheets during the Pliocene; evidence from data and models</gco:CharacterString>2007-01-01publicationgeorefid:2008-114477Hill, D. J.British Antarctic Survey, Geological Sciences Division, Cambridge, United KingdomauthorHaywood, A. M.University of Leeds, United KingdomauthorHindmarsh, R. C. A.PetroStrat, United KingdomauthorValdes, P. J.University of Bristol, United KingdomauthorGeological Society of London, London, United KingdompublisherdocumentHardcopyIn: Williams, M. (editor), Haywood, A. M. (editor), Gregory, F. J. (editor), Schmidt, D. N. (editor), Deep-time perspectives on climate change; marrying the signal from computer models and biological proxies517-538The Pliocene (c. 5.3-1.8 Myr BP) was the last epoch of geological time in which global temperatures were generally higher than modern. It is important if we are to understand the dynamics of warm climates. This is particularly true of the interaction of climate and cryosphere, where the Pliocene may represent the first epoch in which ice sheets, at least on Antarctica, were a permanent feature. In this paper, we review the available evidence for the state of ice sheets during the Pliocene as well as previous attempts to model them. We then present new models and sensitivity studies of the mid-Pliocene East Antarctic Ice Sheet (EAIS) and consider the implications for the debate on ice-sheet stability during the Pliocene. These new reconstructions suggest that the mid-Pliocene EAIS was significantly smaller than modern, but the modelled average mid-Pliocene climate is not sufficient to cause the widespread deglaciation suggested by Sirius Group diatom evidence.completedStratigraphyAntarctic ice sheetAntarcticaArctic OceanAtlantic OceanCenozoicEast Antarctic ice sheetglacial geologyglaciationice sheetsLeg 105Leg 151Leg 152Leg 162modelsNeogeneNorth AtlanticNorwegian SeaOcean Drilling ProgramODP Site 642ODP Site 645ODP Site 646ODP Site 907ODP Site 910ODP Site 911ODP Site 918ODP Site 986paleoclimatologyPlioceneTertiaryurn:org.iodp:exp:105urnlargerWorkCitationcampaignurn:org.iodp:exp:151urnlargerWorkCitationcampaignurn:org.iodp:exp:152urnlargerWorkCitationcampaignurn:org.iodp:exp:162urnlargerWorkCitationcampaignurn:org.iodp:exp:104:site:642urnlargerWorkCitationstudyurn:org.iodp:exp:104urnlargerWorkCitationcampaignurn:org.iodp:exp:105:site:645urnlargerWorkCitationstudyurn:org.iodp:exp:105urnlargerWorkCitationcampaignurn:org.iodp:exp:105:site:646urnlargerWorkCitationstudyurn:org.iodp:exp:105urnlargerWorkCitationcampaignurn: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:152:site:918urnlargerWorkCitationstudyurn:org.iodp:exp:152urnlargerWorkCitationcampaignurn:org.iodp:exp:162:site:986urnlargerWorkCitationstudyurn:org.iodp:exp:162urnlargerWorkCitationcampaignEnglishgeoscientificInformation-64.39246.352663.053480.1553