2001 Articles
Subglacial sediments: A regional geological template for ice flow in West Antarctica
We use aerogeophysical data to estimate the distribution of marine subglacial sediments and fault“bounded sedimentary basins beneath the West Antarctic Ice Sheet (WAIS). We find that significant ice flow occurs exclusively in regions covered by subglacial sediments. The onsets and lateral margins of ice streams coincide with the limit of marine sediments. Lateral margins are also consistently linked with fault“bounded basins. We predict that the inland migration of ice streams B and C 1 towards the ice divide outside the region covered by marine or rift sediments is unlikely. The subglacial geology has the potential to modulate the dynamic evolution of the ice streams and the WAIS.
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2000GL011788.pdf application/pdf 510 KB Download File
Also Published In
- Title
- Geophysical Research Letters
- DOI
- https://doi.org/10.1029/2000GL011788
More About This Work
- Academic Units
- Lamont-Doherty Earth Observatory
- Marine Geology and Geophysics
- Published Here
- July 20, 2011