Direct constraints on Antarctic Peninsula ice sheet grounding events between 5.12 and 7.94 Ma

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doi: 10.1029/2004JF000254
Author(s): Bart, Philip J.; Egan, Dave; Warny, Sophie A.
Author Affiliation(s): Primary:
Louisiana State University, Department of Geology and Geophysics, Baton Rouge, LA, United States
Volume Title: Journal of Geophysical Research
Source: Journal of Geophysical Research, 110(F4), 13p. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0148-0227
Note: In English. 63 refs.; illus., incl. geol. sketch map, 3 tables, sects.
Summary: How has the Antarctic Ice Sheet responded to or influenced global climate change? This simple question has been difficult to address because the long-term records of the ice sheet's fluctuations are poorly constrained with geologic data from Antarctica. Thus studies to date have not convincingly established how specific Antarctic Ice Sheet events correlate with climatic, eustatic, or other phenomena known from low-latitude and deep-sea records. This study focused on documenting the direct record of ice sheet advance and retreat to the Antarctic Peninsula's shelf edge. On the peninsula's outer shelf, seismic reflectors interpreted to be subglacial unconformities were correlated with published results from Ocean Drilling Program Leg 178. (mod. journ. abst.)
Year of Publication: 2005
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; 20 Geophysics, Applied; Antarctic Peninsula; Antarctic ice sheet; Antarctica; Cenozoic; Climate change; Eustasy; Geophysical methods; Geophysical profiles; Geophysical surveys; Glacial environment; Glacial geology; Glacial rebound; Ice sheets; Isostatic rebound; Leg 178; Lithofacies; Miocene; Neogene; ODP Site 1097; ODP Site 1103; Ocean Drilling Program; Paleoclimatology; Paleoenvironment; Seismic methods; Seismic profiles; Southern Ocean; Surveys; Tertiary; Unconformities
Coordinates: S662334 S662334 W0704523 W0704523
S635958 S635958 W0652755 W0652755
Record ID: 2006080906
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