Active subglacial volcanism in West Antarctica
A combination of aerogeophysics, seismic observations and direct observation from ice cores and subglacial sampling has revealed at least 21 sites under the West Antarctic Ice sheet consistent with active volcanism (where active is defined as volcanism that has interacted with the current manifestat...
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Geological Society of London
2020
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ftdatacite:10.6084/m9.figshare.c.5226102.v1 2023-05-15T13:24:02+02:00 Active subglacial volcanism in West Antarctica E. Quartini D.D. Blankenship D.A. Young 2020 https://dx.doi.org/10.6084/m9.figshare.c.5226102.v1 https://geolsoc.figshare.com/collections/Active_subglacial_volcanism_in_West_Antarctica/5226102/1 unknown Geological Society of London https://dx.doi.org/10.1144/m55-2019-3 https://dx.doi.org/10.6084/m9.figshare.c.5226102 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Geology FOS Earth and related environmental sciences Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.5226102.v1 https://doi.org/10.1144/m55-2019-3 https://doi.org/10.6084/m9.figshare.c.5226102 2021-11-05T12:55:41Z A combination of aerogeophysics, seismic observations and direct observation from ice cores and subglacial sampling has revealed at least 21 sites under the West Antarctic Ice sheet consistent with active volcanism (where active is defined as volcanism that has interacted with the current manifestation of the West Antarctic Ice Sheet). Coverage of these datasets is heterogenous, potentially biasing the apparent distribution of these features. Also, the products of volcanic activity under thinner ice characterized by relatively fast flow are more prone to erosion and removal by the ice sheet, and therefore potentially underrepresented. Unsurprisingly, the sites of active subglacial volcanism we have identified often overlap with areas of relatively thick ice and slow ice surface flow, both of which are critical conditions for the preservation of volcanic records. Overall, we find the majority of active subglacial volcanic sites in West Antarctica concentrate strongly along the crustal thickness gradients bounding the central West Antarctic Rift System, complemented by intra-rift sites associated with the Amundsen Sea to Siple Coast lithospheric transition. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Coast ENVELOPE(-155.000,-155.000,-82.000,-82.000) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Geology FOS Earth and related environmental sciences |
spellingShingle |
Geology FOS Earth and related environmental sciences E. Quartini D.D. Blankenship D.A. Young Active subglacial volcanism in West Antarctica |
topic_facet |
Geology FOS Earth and related environmental sciences |
description |
A combination of aerogeophysics, seismic observations and direct observation from ice cores and subglacial sampling has revealed at least 21 sites under the West Antarctic Ice sheet consistent with active volcanism (where active is defined as volcanism that has interacted with the current manifestation of the West Antarctic Ice Sheet). Coverage of these datasets is heterogenous, potentially biasing the apparent distribution of these features. Also, the products of volcanic activity under thinner ice characterized by relatively fast flow are more prone to erosion and removal by the ice sheet, and therefore potentially underrepresented. Unsurprisingly, the sites of active subglacial volcanism we have identified often overlap with areas of relatively thick ice and slow ice surface flow, both of which are critical conditions for the preservation of volcanic records. Overall, we find the majority of active subglacial volcanic sites in West Antarctica concentrate strongly along the crustal thickness gradients bounding the central West Antarctic Rift System, complemented by intra-rift sites associated with the Amundsen Sea to Siple Coast lithospheric transition. |
format |
Article in Journal/Newspaper |
author |
E. Quartini D.D. Blankenship D.A. Young |
author_facet |
E. Quartini D.D. Blankenship D.A. Young |
author_sort |
E. Quartini |
title |
Active subglacial volcanism in West Antarctica |
title_short |
Active subglacial volcanism in West Antarctica |
title_full |
Active subglacial volcanism in West Antarctica |
title_fullStr |
Active subglacial volcanism in West Antarctica |
title_full_unstemmed |
Active subglacial volcanism in West Antarctica |
title_sort |
active subglacial volcanism in west antarctica |
publisher |
Geological Society of London |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5226102.v1 https://geolsoc.figshare.com/collections/Active_subglacial_volcanism_in_West_Antarctica/5226102/1 |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-155.000,-155.000,-82.000,-82.000) |
geographic |
Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Siple Siple Coast |
geographic_facet |
Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Siple Siple Coast |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_relation |
https://dx.doi.org/10.1144/m55-2019-3 https://dx.doi.org/10.6084/m9.figshare.c.5226102 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5226102.v1 https://doi.org/10.1144/m55-2019-3 https://doi.org/10.6084/m9.figshare.c.5226102 |
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