georefid:2004-083826georefid:2004-083812SEDIS 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.188.016.2004<gco:CharacterString>Prydz channel fan and the history of extreme ice advances in Prydz Bay</gco:CharacterString>2004-01-01publicationgeorefid:2004-083826doi:10.2973/odp.proc.sr.188.016.2004O'Brien, Philip E.Australian Geological Survey Organisation, Petroleum and Marine Division, Canberra, AustraliaauthorCooper, Alan K.Australian Geological Survey Organisation, AustraliaauthorFlorindo, FabioOcean Drilling Program, United StatesauthorHandwerger, David A.University of Leicester, United KingdomauthorLavelle, MarkUniversity of Nebraska, United StatesauthorPasschier, SandraUniversity of Texas at Arlington, United StatesauthorPospichal, James J.Oxford University, United KingdomauthorQuilty, Patrick G.Istituto Nazionale di Geofisica e Vulcanologia, ItalyauthorRichter, CarlNorwegian Polar Institute, NorwayauthorTheissen, Kevin M.Christan-Albrechts-Universitaet zu Kiel, Federal Republic of GermanyauthorWhitehead, Jason M.University of Utah, United StatesauthorTexas A&M University, Ocean Drilling Program, College Station, TX, United StatespublisherdocumentDigitalIn: Cooper, Alan K., O'Brien, Philip E., Richter, Carl, Barr, Samantha R., Bohaty, Steven M., Claypool, George E., Damuth, John E., Erwin, Patrick S., Florindo, Fabio, Forsberg, Carl Fredrik, Gruetzner, Jens, Handwerger, David A., Januszczak, Nicole N., Kaiko, Alexander, Kryc, Kelly A., Lavelle, Mark, Passchier, Sandra, Pospichal, James J., Quilty, Patrick G., Rebesco, Michele A., Strand, Kari O., Taylor, Brian, Theissen, Kevin M., Warnke, Detlef A., Whalen, Patricia A., Whitehead, Jason M., Williams, Trevor, Proceedings of the Ocean Drilling Program; scientific results; Prydz Bay-Cooperation Sea, Antarctica; glacial history and paleoceanography; covering Leg 188 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Hobart, Tasmania; Sites 1165-1167; 10 January-11 March 2000188During the late Neogene, the Lambert Glacier-Amery Ice Shelf drainage system flowed across Prydz Bay in an ice stream that reached the shelf edge and built a trough mouth fan on the upper continental slope. The adjacent banks saw mostly subglacial till deposition beneath slower-moving ice. The fan consists mostly of debris flow deposits derived from the melting out of subglacial debris at the grounding line at the continental shelf edge. Thick debris flow intervals are separated by thin mudstone horizons deposited when the ice had retreated from the shelf edge. Age control at Ocean Drilling Program Site 1167 indicates that the bulk of the trough mouth fan was deposited prior to approximately 780 ka with as few as three debris flow intervals deposited since then. This stratigraphy indicates that extreme advances of the Lambert Glacier-Amery Ice Shelf system ceased during the mid-Pleistocene. Possible causes for this change are progressive over-deepening of the inner shelf, a reduction in maximum ice volumes in the interior of the East Antarctic Ice Sheet caused by temperature change, and a change in the interaction of Milankovich cycles and the response time of the ice sheet.completedStratigraphyAmery Ice ShelfAntarctic ice sheetAntarcticaCenozoicclimate changecorescyclesdepositional environmentglacial geologyice sheetsLambert GlacierLeg 188Mac Robertson LandMilankovitch theoryNeogeneOcean Drilling Programocean floorsODP Site 1167paleoclimatologyPleistocenePrydz BayQuaternarysedimentationsedimentation ratesSouthern OceanTertiaryupper Neogeneurn:org.iodp:exp:188urnlargerWorkCitationcampaignurn:org.iodp:exp:188:site:1167urnlargerWorkCitationstudyurn:org.iodp:exp:188urnlargerWorkCitationcampaignEnglishgeoscientificInformation72.170072.1800-66.2400-66.2400Available only on CD-ROM in PDF format and on the Web in PDF and HTMLapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www-odp.tamu.edu/publications/188_SR/VOLUME/CHAPTERS/016.PDFdownload