georefid:1996-075935SEDIS 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=1996-0759351996-01-01publicationgeorefid:1996-075935Williams, Paul W.University of Auckland, Department of Geography, Auckland, New ZealandauthorDepartment of Scientific and Industrial Research (DSIR), Wellington, New ZealandpublisherdocumentHardcopyNew Zealand Journal of Geology and Geophysics39 (2)225-241Caves overrun by glaciers are known to accumulate dateable evidence of past glacial and interglacial events. Results are reported from an investigation of Aurora Cave on the slopes above Lake Te Anau in Fiordland. The cave commenced to form before c. 230 ka B.P. Sequences of glaciofluvial sediments interbedded with speleothems are evidence of the number and timing of glacial advances and the status of intervals between them. Twenty-six uranium series dates on speleothems underpin a chronology of seven glacial advances in the last 230 ka, with the peak of the late Otira glaciation, Aurora 3 advance, at c. 19 ka B.P. With five advances in the Otiran, the last glaciation is more complex than previously recognised. Comparison of the record with that recorded offshore from DSDP Site 594 reveals little matching, but the correspondence of the Aurora sequence with that interpreted from other onshore deposits is more convincing. Glacial deposits on slopes above the cave for a further 660 m may be evidence of the "missing" glacial events of the mid-early Pleistocene.completedQuaternary geologyGeomorphologySedimentary petrologyabsolute ageAurora CaveAustralasiacavesCenozoicChatham Riseclastic sedimentscorrelationdatesDeep Sea Drilling ProjectDSDP Site 594erraticsfault zonesfaultsFiordland New Zealandfluvial sedimentationglacial environmentglacial extentglacial featuresglacial sedimentationglaciationglaciofluvial sedimentationindicatorsinterglacial environmentIPODisotope ratiosisotopeskamesLake Te AnauLeg 90lithostratigraphylower PleistocenemorainesMurchison MountainsNew ZealandO-18/O-16OtiranoxygenPa/UPacific OceanPleistoceneQuaternarysedimentationsedimentssolution featuresSouth IslandSouth Pacificspeleothemsstable isotopesstalagmitesTe Ana-Au CaveterracesTh/UTunnel Burn Formationurn:org.iodp:exp:90urnlargerWorkCitationcampaignurn:org.iodp:exp:90:site:594urnlargerWorkCitationstudyurn:org.iodp:exp:90urnlargerWorkCitationcampaignEnglishgeoscientificInformation166.3000178.3000-47.3000-34.3000Chatham RiseNew Zealand