Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet?
Abstract We observe in 6 key sectors of East and West Antarctica continental margin a change in the geometry of the sedimentary deposits which is characterized by: margin-wide erosion and subsequent progradation on the continental shelf; downlap on the continental slope; major mass wasting deposits...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.563.7388 2023-05-15T14:01:37+02:00 Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? M. Rebesco A. Camerlenghi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.7388 http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.7388 http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf text ftciteseerx 2016-01-08T12:09:51Z Abstract We observe in 6 key sectors of East and West Antarctica continental margin a change in the geometry of the sedimentary deposits which is characterized by: margin-wide erosion and subsequent progradation on the continental shelf; downlap on the continental slope; major mass wasting deposits on the continental rise. The change occurs in the late Neogene in all sectors, though some natural variation exists, and the stratigraphic position is not obvious for every margin. The change is apparently synchronous and dated about 3 Ma in Antarctic Peninsula and Prydz Bay margins and broadly concomitant in the others sectors. This suggests a common driving force, which we suggest to be the transition of the Antarctic ice sheet regime from polythermal to present polar cold, dry-based conditions. Text Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Prydz Bay West Antarctica Unknown Antarctic Antarctic Peninsula Prydz Bay The Antarctic West Antarctica |
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Open Polar |
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ftciteseerx |
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English |
description |
Abstract We observe in 6 key sectors of East and West Antarctica continental margin a change in the geometry of the sedimentary deposits which is characterized by: margin-wide erosion and subsequent progradation on the continental shelf; downlap on the continental slope; major mass wasting deposits on the continental rise. The change occurs in the late Neogene in all sectors, though some natural variation exists, and the stratigraphic position is not obvious for every margin. The change is apparently synchronous and dated about 3 Ma in Antarctic Peninsula and Prydz Bay margins and broadly concomitant in the others sectors. This suggests a common driving force, which we suggest to be the transition of the Antarctic ice sheet regime from polythermal to present polar cold, dry-based conditions. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
M. Rebesco A. Camerlenghi |
spellingShingle |
M. Rebesco A. Camerlenghi Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
author_facet |
M. Rebesco A. Camerlenghi |
author_sort |
M. Rebesco |
title |
Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
title_short |
Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
title_full |
Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
title_fullStr |
Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
title_full_unstemmed |
Does the late Pliocene change in the architecture of the Antarctic margin correspond to the transition to the modern Antarctic Ice Sheet? |
title_sort |
does the late pliocene change in the architecture of the antarctic margin correspond to the transition to the modern antarctic ice sheet? |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.7388 http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf |
geographic |
Antarctic Antarctic Peninsula Prydz Bay The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Prydz Bay The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Prydz Bay West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet Prydz Bay West Antarctica |
op_source |
http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.7388 http://pubs.usgs.gov/of/2007/1047/srp/srp021/of2007-1047srp021.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766271593808396288 |