Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation
pgs. 87-104 Unlike terrestrial ice sheets, marine ice sheets desplay more sensitivity to sea level than to climate, and they are capable of rapid mass wasting. This mass wasting involves ice shelf decoupling from the sea floor and rapid collapse, followed by drawdown of the ice sheet. Glaciologists...
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Elsevier Scientific Publishing Company
1991
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Online Access: | http://hdl.handle.net/1969.3/21420 |
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fttexasamunigalv:oai:tamug-ir.tdl.org:1969.3/21420 2023-11-12T04:08:33+01:00 Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation Anderson, J.B. Thomas, M.A. Sedimentary Geology 1991 http://hdl.handle.net/1969.3/21420 unknown Elsevier Scientific Publishing Company 3631.00 http://metalib.tamu.edu:9003/tamu/cgi/core/citation-linker.cgi? http://hdl.handle.net/1969.3/21420 Holocene Sediments Sea level changes Article 1991 fttexasamunigalv 2023-10-30T16:17:44Z pgs. 87-104 Unlike terrestrial ice sheets, marine ice sheets desplay more sensitivity to sea level than to climate, and they are capable of rapid mass wasting. This mass wasting involves ice shelf decoupling from the sea floor and rapid collapse, followed by drawdown of the ice sheet. Glaciologists argue that the marine ice-sheet decoupling mechanism could cause sea-level rises of a few meters within several hundred years. Information regarding late Wisconsinan-Holocene glacial history suggests that ice-sheet deterioration did not occur at a steady rate. Studies of the Antarctic continental shelf indicate ice sheets grounded over large portions of he shelf during the late Wisconsinan glacial maximum, and that their retreat from the continental shelf was rapid. A study of the Trinity/Sabine incised valley of the Texas continental shelf yields a continuous record of Holocene sedimentation and sea-level change. Paired upper-bay and tidal-inlet setuarine systems reflect periods when relative sea level was either at a still-stand or slowly rising. The flooding surfaces of back-stepping parasequences reflect periods of rapid sea-level rise. Large sand bodies on the adjacent shelf, used to derive previous sea-level surves for the region, may represent former shoreline deposits, butthey also show extensive reworking. Therefore, the curves generated from studies of these sand bodies are inaccurate. Marine ice sheets have existed in Anartica since at least the late Eocene, so this mechanism for rapid sea-level rise has been active throughout much of Cenozoic time, as well as during older glacial episodes. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Ice Shelf Texas A&M University Galveston Campus: DSpace Repository Antarctic The Antarctic |
institution |
Open Polar |
collection |
Texas A&M University Galveston Campus: DSpace Repository |
op_collection_id |
fttexasamunigalv |
language |
unknown |
topic |
Holocene Sediments Sea level changes |
spellingShingle |
Holocene Sediments Sea level changes Anderson, J.B. Thomas, M.A. Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
topic_facet |
Holocene Sediments Sea level changes |
description |
pgs. 87-104 Unlike terrestrial ice sheets, marine ice sheets desplay more sensitivity to sea level than to climate, and they are capable of rapid mass wasting. This mass wasting involves ice shelf decoupling from the sea floor and rapid collapse, followed by drawdown of the ice sheet. Glaciologists argue that the marine ice-sheet decoupling mechanism could cause sea-level rises of a few meters within several hundred years. Information regarding late Wisconsinan-Holocene glacial history suggests that ice-sheet deterioration did not occur at a steady rate. Studies of the Antarctic continental shelf indicate ice sheets grounded over large portions of he shelf during the late Wisconsinan glacial maximum, and that their retreat from the continental shelf was rapid. A study of the Trinity/Sabine incised valley of the Texas continental shelf yields a continuous record of Holocene sedimentation and sea-level change. Paired upper-bay and tidal-inlet setuarine systems reflect periods when relative sea level was either at a still-stand or slowly rising. The flooding surfaces of back-stepping parasequences reflect periods of rapid sea-level rise. Large sand bodies on the adjacent shelf, used to derive previous sea-level surves for the region, may represent former shoreline deposits, butthey also show extensive reworking. Therefore, the curves generated from studies of these sand bodies are inaccurate. Marine ice sheets have existed in Anartica since at least the late Eocene, so this mechanism for rapid sea-level rise has been active throughout much of Cenozoic time, as well as during older glacial episodes. |
author2 |
Sedimentary Geology |
format |
Article in Journal/Newspaper |
author |
Anderson, J.B. Thomas, M.A. |
author_facet |
Anderson, J.B. Thomas, M.A. |
author_sort |
Anderson, J.B. |
title |
Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
title_short |
Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
title_full |
Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
title_fullStr |
Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
title_full_unstemmed |
Marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
title_sort |
marine ice-sheet decoupling as a mechanism for rapid, episodic sea-level change: the record of such events and their influence on sedimentation |
publisher |
Elsevier Scientific Publishing Company |
publishDate |
1991 |
url |
http://hdl.handle.net/1969.3/21420 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf |
op_relation |
3631.00 http://metalib.tamu.edu:9003/tamu/cgi/core/citation-linker.cgi? http://hdl.handle.net/1969.3/21420 |
_version_ |
1782328818696978432 |