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 o...
Main Authors: | , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Columbia University
2001
|
Subjects: | |
Online Access: | https://dx.doi.org/10.7916/d87s7z9d https://academiccommons.columbia.edu/doi/10.7916/D87S7Z9D |
id |
ftdatacite:10.7916/d87s7z9d |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.7916/d87s7z9d 2023-05-15T13:57:48+02:00 Subglacial sediments: A regional geological template for ice flow in West Antarctica Studinger, Michael Bell, Robin E. Blankenship, Donald D. Finn, Carol A. Arko, Robert A. Morse, David L. Joughin, Ian 2001 https://dx.doi.org/10.7916/d87s7z9d https://academiccommons.columbia.edu/doi/10.7916/D87S7Z9D unknown Columbia University Hydrology Submarine geology Geophysics Text Articles article-journal ScholarlyArticle 2001 ftdatacite https://doi.org/10.7916/d87s7z9d 2021-11-05T12:55:41Z 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. Text Antarc* Antarctic Antarctica Ice Sheet West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic West Antarctica West Antarctic Ice Sheet |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Hydrology Submarine geology Geophysics |
spellingShingle |
Hydrology Submarine geology Geophysics Studinger, Michael Bell, Robin E. Blankenship, Donald D. Finn, Carol A. Arko, Robert A. Morse, David L. Joughin, Ian Subglacial sediments: A regional geological template for ice flow in West Antarctica |
topic_facet |
Hydrology Submarine geology Geophysics |
description |
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. |
format |
Text |
author |
Studinger, Michael Bell, Robin E. Blankenship, Donald D. Finn, Carol A. Arko, Robert A. Morse, David L. Joughin, Ian |
author_facet |
Studinger, Michael Bell, Robin E. Blankenship, Donald D. Finn, Carol A. Arko, Robert A. Morse, David L. Joughin, Ian |
author_sort |
Studinger, Michael |
title |
Subglacial sediments: A regional geological template for ice flow in West Antarctica |
title_short |
Subglacial sediments: A regional geological template for ice flow in West Antarctica |
title_full |
Subglacial sediments: A regional geological template for ice flow in West Antarctica |
title_fullStr |
Subglacial sediments: A regional geological template for ice flow in West Antarctica |
title_full_unstemmed |
Subglacial sediments: A regional geological template for ice flow in West Antarctica |
title_sort |
subglacial sediments: a regional geological template for ice flow in west antarctica |
publisher |
Columbia University |
publishDate |
2001 |
url |
https://dx.doi.org/10.7916/d87s7z9d https://academiccommons.columbia.edu/doi/10.7916/D87S7Z9D |
geographic |
Antarctic West Antarctica West Antarctic Ice Sheet |
geographic_facet |
Antarctic West Antarctica West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_doi |
https://doi.org/10.7916/d87s7z9d |
_version_ |
1766265680638771200 |