Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ...
Subglacial meltwater drainage can enhance localized melting along grounding zones and beneath the ice shelves of marine-terminating glaciers. Efforts to constrain the evolution of subglacial hydrology and the resulting influence on ice stability in space and on decadal to millennial timescales are l...
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ETH Zurich
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000554397 http://hdl.handle.net/20.500.11850/554397 |
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ftdatacite:10.3929/ethz-b-000554397 2024-04-28T08:01:25+00:00 Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... Lepp, Allison P. Simkins, Lauren M. Anderson, John B. Clark, Rachel W. Wellner, Julia S. Hillenbrand, Claus-Dieter Smith, James A. Lehrmann, Asmara A. Totten, Rebecca Larter, Robert D. Hogan, Kelly A. Nitsche, Frank O. Graham, Alastair G.C. Wacker, Lukas 2022 application/pdf https://dx.doi.org/10.3929/ethz-b-000554397 http://hdl.handle.net/20.500.11850/554397 en eng ETH Zurich glacial sediments meltwater plumes glacial hydrology holocene computed tomography west Antarctica article-journal Text ScholarlyArticle Journal Article 2022 ftdatacite https://doi.org/10.3929/ethz-b-000554397 2024-04-02T12:32:08Z Subglacial meltwater drainage can enhance localized melting along grounding zones and beneath the ice shelves of marine-terminating glaciers. Efforts to constrain the evolution of subglacial hydrology and the resulting influence on ice stability in space and on decadal to millennial timescales are lacking. Here, we apply sedimentological, geochemical, and statistical methods to analyze sediment cores recovered offshore Thwaites Glacier, West Antarctica to reconstruct meltwater drainage activity through the pre-satellite era. We find evidence for a long-lived subglacial hydrologic system beneath Thwaites Glacier and indications that meltwater plumes are the primary mechanism of sedimentation seaward of the glacier today. Detailed core stratigraphy revealed through computed tomography scanning captures variability in drainage styles and suggests greater magnitudes of sediment-laden meltwater have been delivered to the ocean in recent centuries compared to the past several thousand years. Fundamental ... : Frontiers in Earth Science, 10 ... Article in Journal/Newspaper Antarc* Antarctica Ice Shelves Thwaites Glacier West Antarctica DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
glacial sediments meltwater plumes glacial hydrology holocene computed tomography west Antarctica |
spellingShingle |
glacial sediments meltwater plumes glacial hydrology holocene computed tomography west Antarctica Lepp, Allison P. Simkins, Lauren M. Anderson, John B. Clark, Rachel W. Wellner, Julia S. Hillenbrand, Claus-Dieter Smith, James A. Lehrmann, Asmara A. Totten, Rebecca Larter, Robert D. Hogan, Kelly A. Nitsche, Frank O. Graham, Alastair G.C. Wacker, Lukas Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
topic_facet |
glacial sediments meltwater plumes glacial hydrology holocene computed tomography west Antarctica |
description |
Subglacial meltwater drainage can enhance localized melting along grounding zones and beneath the ice shelves of marine-terminating glaciers. Efforts to constrain the evolution of subglacial hydrology and the resulting influence on ice stability in space and on decadal to millennial timescales are lacking. Here, we apply sedimentological, geochemical, and statistical methods to analyze sediment cores recovered offshore Thwaites Glacier, West Antarctica to reconstruct meltwater drainage activity through the pre-satellite era. We find evidence for a long-lived subglacial hydrologic system beneath Thwaites Glacier and indications that meltwater plumes are the primary mechanism of sedimentation seaward of the glacier today. Detailed core stratigraphy revealed through computed tomography scanning captures variability in drainage styles and suggests greater magnitudes of sediment-laden meltwater have been delivered to the ocean in recent centuries compared to the past several thousand years. Fundamental ... : Frontiers in Earth Science, 10 ... |
format |
Article in Journal/Newspaper |
author |
Lepp, Allison P. Simkins, Lauren M. Anderson, John B. Clark, Rachel W. Wellner, Julia S. Hillenbrand, Claus-Dieter Smith, James A. Lehrmann, Asmara A. Totten, Rebecca Larter, Robert D. Hogan, Kelly A. Nitsche, Frank O. Graham, Alastair G.C. Wacker, Lukas |
author_facet |
Lepp, Allison P. Simkins, Lauren M. Anderson, John B. Clark, Rachel W. Wellner, Julia S. Hillenbrand, Claus-Dieter Smith, James A. Lehrmann, Asmara A. Totten, Rebecca Larter, Robert D. Hogan, Kelly A. Nitsche, Frank O. Graham, Alastair G.C. Wacker, Lukas |
author_sort |
Lepp, Allison P. |
title |
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
title_short |
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
title_full |
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
title_fullStr |
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
title_full_unstemmed |
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica ... |
title_sort |
sedimentary signatures of persistent subglacial meltwater drainage from thwaites glacier, antarctica ... |
publisher |
ETH Zurich |
publishDate |
2022 |
url |
https://dx.doi.org/10.3929/ethz-b-000554397 http://hdl.handle.net/20.500.11850/554397 |
genre |
Antarc* Antarctica Ice Shelves Thwaites Glacier West Antarctica |
genre_facet |
Antarc* Antarctica Ice Shelves Thwaites Glacier West Antarctica |
op_doi |
https://doi.org/10.3929/ethz-b-000554397 |
_version_ |
1797573166189510656 |