Pressurized brines in continental Antarctica as a possible analogue of Mars
Interest in brines in extreme and cold environments has recently increased after they have been found on Mars. Those brines can be potential new subsurface habitats for peculiar ecosystems. In the McMurdo Dry Valleys of the Antarctic, the best analogue for Mars conditions, only a few cases of brines...
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ftpubmed:oai:pubmedcentral.nih.gov:5018818 2023-05-15T13:30:39+02:00 Pressurized brines in continental Antarctica as a possible analogue of Mars Forte, Emanuele Dalle Fratte, Michele Azzaro, Maurizio Guglielmin, Mauro 2016-09-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5018818/ http://www.ncbi.nlm.nih.gov/pubmed/27616183 https://doi.org/10.1038/srep33158 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5018818/ http://www.ncbi.nlm.nih.gov/pubmed/27616183 http://dx.doi.org/10.1038/srep33158 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/srep33158 2016-09-25T00:08:45Z Interest in brines in extreme and cold environments has recently increased after they have been found on Mars. Those brines can be potential new subsurface habitats for peculiar ecosystems. In the McMurdo Dry Valleys of the Antarctic, the best analogue for Mars conditions, only a few cases of brines have been identified in some perennially frozen lakes and in one case in an underground aquifer. Here, we present the occurrence of pressurized brines in a shallow perennially ice-covered lake south of 70°S in an ice-free area of Victoria Land, Antarctica. For the first time, we also imaged, by means of ground penetrating radar data, the existence of a pingo-like-feature (PLF) formed by the extrusion of brines, which has also been confirmed by borehole evidence. Those brines are fed by an underground talik external to the lake basin, enhancing the possibility of unexploited ecosystems that could find an analogue in Martian environments. Text Antarc* Antarctic Antarctica McMurdo Dry Valleys Victoria Land PubMed Central (PMC) Antarctic McMurdo Dry Valleys Talik ENVELOPE(146.601,146.601,59.667,59.667) The Antarctic Victoria Land Scientific Reports 6 1 |
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Article Forte, Emanuele Dalle Fratte, Michele Azzaro, Maurizio Guglielmin, Mauro Pressurized brines in continental Antarctica as a possible analogue of Mars |
topic_facet |
Article |
description |
Interest in brines in extreme and cold environments has recently increased after they have been found on Mars. Those brines can be potential new subsurface habitats for peculiar ecosystems. In the McMurdo Dry Valleys of the Antarctic, the best analogue for Mars conditions, only a few cases of brines have been identified in some perennially frozen lakes and in one case in an underground aquifer. Here, we present the occurrence of pressurized brines in a shallow perennially ice-covered lake south of 70°S in an ice-free area of Victoria Land, Antarctica. For the first time, we also imaged, by means of ground penetrating radar data, the existence of a pingo-like-feature (PLF) formed by the extrusion of brines, which has also been confirmed by borehole evidence. Those brines are fed by an underground talik external to the lake basin, enhancing the possibility of unexploited ecosystems that could find an analogue in Martian environments. |
format |
Text |
author |
Forte, Emanuele Dalle Fratte, Michele Azzaro, Maurizio Guglielmin, Mauro |
author_facet |
Forte, Emanuele Dalle Fratte, Michele Azzaro, Maurizio Guglielmin, Mauro |
author_sort |
Forte, Emanuele |
title |
Pressurized brines in continental Antarctica as a possible analogue of Mars |
title_short |
Pressurized brines in continental Antarctica as a possible analogue of Mars |
title_full |
Pressurized brines in continental Antarctica as a possible analogue of Mars |
title_fullStr |
Pressurized brines in continental Antarctica as a possible analogue of Mars |
title_full_unstemmed |
Pressurized brines in continental Antarctica as a possible analogue of Mars |
title_sort |
pressurized brines in continental antarctica as a possible analogue of mars |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5018818/ http://www.ncbi.nlm.nih.gov/pubmed/27616183 https://doi.org/10.1038/srep33158 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) |
geographic |
Antarctic McMurdo Dry Valleys Talik The Antarctic Victoria Land |
geographic_facet |
Antarctic McMurdo Dry Valleys Talik The Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys Victoria Land |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5018818/ http://www.ncbi.nlm.nih.gov/pubmed/27616183 http://dx.doi.org/10.1038/srep33158 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep33158 |
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Scientific Reports |
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6 |
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1 |
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1766011124327645184 |