Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4039
AuthorsNaish, T. R.* 
Powell, R. D.* 
Barrett, P. J.* 
Levy, R. H.* 
Henrys, S.* 
Wilson, G. S.* 
Krissek, L. A.* 
Niessen, F.* 
Pompilio, M.* 
Ross, J.* 
Scherer, R.* 
Talarico, F.* 
Pyne, A.* 
ANDRILL-MIS Science Team,*
ANDRILL-MIS Science Team* 
TitleLate Cenozoic Climate History of the Ross Embayment from the AND-1B Drill Hole: Culmination of Three Decades of Antarctic Margin Drilling
Issue Date2008
URIhttp://hdl.handle.net/2122/4039
KeywordsANDRILL
Late Cenozoic climate history
Subject Classification03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 
AbstractBecause of the paucity of exposed rock, the direct physical record of Antarctic Cenozoic glacial history has become known only recently and then largely from offshore shelf basins through seismic surveys and drilling. The number of holes on the continental shelf has been small and largely confined to three areas (McMurdo Sound, Prydz Bay, and Antarctic Peninsula), but even in McMurdo Sound, where Oligocene and early Miocene strata are well cored, the late Cenozoic is poorly known and dated. The latest Antarctic geological drilling program, ANDRILL, successfully cored a 1285-m-long record of climate history spanning the last 13 m.y. from subsea-floor sediment beneath the McMurdo Ice Shelf (MIS), using drilling systems specially developed for operating through ice shelves. The cores provide the most complete Antarctic record to date of ice-sheet and climate fluctuations for this period of Earth’s history. The >60 cycles of advance and retreat of the grounded ice margin preserved in the AND-1B record the evolution of the Antarctic ice sheet since a profound global cooling step in deep-sea oxygen isotope records ~14 m.y.a. A feature of particular interest is a ~90-m-thick interval of diatomite deposited during the warm Pliocene and representing an extended period (~200,000 years) of locally open water, high phytoplankton productivity, and retreat of the glaciers on land.
Appears in Collections:Conference materials

Files in This Item:
File Description SizeFormat 
Naish_Florindo_vol_proceedings.pdf641.71 kBAdobe PDFView/Open
Show full item record

Page view(s)

67
Last Week
0
Last month
checked on Jun 23, 2017

Download(s)

134
checked on Jun 23, 2017

Google ScholarTM

Check