Evidence for a palaeo-subglacial lake on the Antarctic continental shelf
Subglacial lakes are widespread beneath the Antarctic Ice Sheet but their control on ice-sheet dynamics and their ability to harbour life remain poorly characterized. Here we present evidence for a palaeo-subglacial lake on the Antarctic continental shelf. A distinct sediment facies recovered from a...
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Springer Nature
2017
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Online Access: | https://epic.awi.de/id/eprint/44687/ https://epic.awi.de/id/eprint/44687/1/Kuhn_etal_2017_subglacial_lake.pdf https://epic.awi.de/id/eprint/44687/2/Kuhn_etal_2017_subglacial_lake-s1.pdf https://epic.awi.de/id/eprint/44687/3/Kuhn_etal_2017_subglacial_lake_movies.zip https://doi.org/10.1038/NCOMMS15591 https://hdl.handle.net/10013/epic.50945 https://hdl.handle.net/10013/epic.50945.d001 https://hdl.handle.net/10013/epic.50945.d002 https://hdl.handle.net/10013/epic.50945.d003 |
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ftawi:oai:epic.awi.de:44687 2023-05-15T13:40:28+02:00 Evidence for a palaeo-subglacial lake on the Antarctic continental shelf Kuhn, Gerhard Hillenbrand, Claus-Dieter Kasten, Sabine Smith, James A. Nitsche, Frank O. Frederichs, Thomas Wiers, Steffen Ehrmann, Werner Klages, Johann P. Mogollón, José M. 2017 application/pdf application/zip https://epic.awi.de/id/eprint/44687/ https://epic.awi.de/id/eprint/44687/1/Kuhn_etal_2017_subglacial_lake.pdf https://epic.awi.de/id/eprint/44687/2/Kuhn_etal_2017_subglacial_lake-s1.pdf https://epic.awi.de/id/eprint/44687/3/Kuhn_etal_2017_subglacial_lake_movies.zip https://doi.org/10.1038/NCOMMS15591 https://hdl.handle.net/10013/epic.50945 https://hdl.handle.net/10013/epic.50945.d001 https://hdl.handle.net/10013/epic.50945.d002 https://hdl.handle.net/10013/epic.50945.d003 unknown Springer Nature https://epic.awi.de/id/eprint/44687/1/Kuhn_etal_2017_subglacial_lake.pdf https://hdl.handle.net/10013/epic.50945.d001 https://epic.awi.de/id/eprint/44687/2/Kuhn_etal_2017_subglacial_lake-s1.pdf https://hdl.handle.net/10013/epic.50945.d002 https://epic.awi.de/id/eprint/44687/3/Kuhn_etal_2017_subglacial_lake_movies.zip https://hdl.handle.net/10013/epic.50945.d003 Kuhn, G. orcid:0000-0001-6069-7485 , Hillenbrand, C. D. , Kasten, S. orcid:0000-0001-7453-5137 , Smith, J. A. , Nitsche, F. O. , Frederichs, T. , Wiers, S. , Ehrmann, W. , Klages, J. P. orcid:0000-0003-0968-1183 and Mogollón, J. M. (2017) Evidence for a palaeo-subglacial lake on the Antarctic continental shelf , Nature Communications, 8 , p. 15591 . doi:10.1038/NCOMMS15591 <https://doi.org/10.1038/NCOMMS15591> , hdl:10013/epic.50945 info:eu-repo/semantics/openAccess EPIC3Nature Communications, Springer Nature, 8, pp. 15591, ISSN: 2041-1723 Article isiRev info:eu-repo/semantics/article 2017 ftawi https://doi.org/10.1038/NCOMMS15591 2021-12-24T15:42:58Z Subglacial lakes are widespread beneath the Antarctic Ice Sheet but their control on ice-sheet dynamics and their ability to harbour life remain poorly characterized. Here we present evidence for a palaeo-subglacial lake on the Antarctic continental shelf. A distinct sediment facies recovered from a bedrock basin in Pine Island Bay indicates deposition within a low-energy lake environment. Diffusive-advection modelling demonstrates that low chloride concentrations in the pore water of the corresponding sediments can only be explained by initial deposition of this facies in a freshwater setting. These observations indicate that an active subglacial meltwater network, similar to that observed beneath the extant ice sheet, was also active during the last glacial period. It also provides a new framework for refining the exploration of these unique environments. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Pine Island Bay Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Island Bay ENVELOPE(-109.085,-109.085,59.534,59.534) Pine Island Bay ENVELOPE(-102.000,-102.000,-74.750,-74.750) The Antarctic Nature Communications 8 1 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Subglacial lakes are widespread beneath the Antarctic Ice Sheet but their control on ice-sheet dynamics and their ability to harbour life remain poorly characterized. Here we present evidence for a palaeo-subglacial lake on the Antarctic continental shelf. A distinct sediment facies recovered from a bedrock basin in Pine Island Bay indicates deposition within a low-energy lake environment. Diffusive-advection modelling demonstrates that low chloride concentrations in the pore water of the corresponding sediments can only be explained by initial deposition of this facies in a freshwater setting. These observations indicate that an active subglacial meltwater network, similar to that observed beneath the extant ice sheet, was also active during the last glacial period. It also provides a new framework for refining the exploration of these unique environments. |
format |
Article in Journal/Newspaper |
author |
Kuhn, Gerhard Hillenbrand, Claus-Dieter Kasten, Sabine Smith, James A. Nitsche, Frank O. Frederichs, Thomas Wiers, Steffen Ehrmann, Werner Klages, Johann P. Mogollón, José M. |
spellingShingle |
Kuhn, Gerhard Hillenbrand, Claus-Dieter Kasten, Sabine Smith, James A. Nitsche, Frank O. Frederichs, Thomas Wiers, Steffen Ehrmann, Werner Klages, Johann P. Mogollón, José M. Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
author_facet |
Kuhn, Gerhard Hillenbrand, Claus-Dieter Kasten, Sabine Smith, James A. Nitsche, Frank O. Frederichs, Thomas Wiers, Steffen Ehrmann, Werner Klages, Johann P. Mogollón, José M. |
author_sort |
Kuhn, Gerhard |
title |
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
title_short |
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
title_full |
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
title_fullStr |
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
title_full_unstemmed |
Evidence for a palaeo-subglacial lake on the Antarctic continental shelf |
title_sort |
evidence for a palaeo-subglacial lake on the antarctic continental shelf |
publisher |
Springer Nature |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44687/ https://epic.awi.de/id/eprint/44687/1/Kuhn_etal_2017_subglacial_lake.pdf https://epic.awi.de/id/eprint/44687/2/Kuhn_etal_2017_subglacial_lake-s1.pdf https://epic.awi.de/id/eprint/44687/3/Kuhn_etal_2017_subglacial_lake_movies.zip https://doi.org/10.1038/NCOMMS15591 https://hdl.handle.net/10013/epic.50945 https://hdl.handle.net/10013/epic.50945.d001 https://hdl.handle.net/10013/epic.50945.d002 https://hdl.handle.net/10013/epic.50945.d003 |
long_lat |
ENVELOPE(-109.085,-109.085,59.534,59.534) ENVELOPE(-102.000,-102.000,-74.750,-74.750) |
geographic |
Antarctic Island Bay Pine Island Bay The Antarctic |
geographic_facet |
Antarctic Island Bay Pine Island Bay The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Pine Island Bay |
genre_facet |
Antarc* Antarctic Ice Sheet Pine Island Bay |
op_source |
EPIC3Nature Communications, Springer Nature, 8, pp. 15591, ISSN: 2041-1723 |
op_relation |
https://epic.awi.de/id/eprint/44687/1/Kuhn_etal_2017_subglacial_lake.pdf https://hdl.handle.net/10013/epic.50945.d001 https://epic.awi.de/id/eprint/44687/2/Kuhn_etal_2017_subglacial_lake-s1.pdf https://hdl.handle.net/10013/epic.50945.d002 https://epic.awi.de/id/eprint/44687/3/Kuhn_etal_2017_subglacial_lake_movies.zip https://hdl.handle.net/10013/epic.50945.d003 Kuhn, G. orcid:0000-0001-6069-7485 , Hillenbrand, C. D. , Kasten, S. orcid:0000-0001-7453-5137 , Smith, J. A. , Nitsche, F. O. , Frederichs, T. , Wiers, S. , Ehrmann, W. , Klages, J. P. orcid:0000-0003-0968-1183 and Mogollón, J. M. (2017) Evidence for a palaeo-subglacial lake on the Antarctic continental shelf , Nature Communications, 8 , p. 15591 . doi:10.1038/NCOMMS15591 <https://doi.org/10.1038/NCOMMS15591> , hdl:10013/epic.50945 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/NCOMMS15591 |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
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1766135566043185152 |