Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur)
The geophysical study of superficial deposits (mainly gravels) in ice-free areas near the seashore in the South Shetland Islands (Antarctica) allows establishing the possible existence of permafrost and buried ice bodies. In this work we have investigated the internal structure of Quaternary sedimen...
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Sociedad Geológica de España
1999
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ftunivhuelva:oai:rabida.uhu.es:10272/9929 2023-05-15T13:46:26+02:00 Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) Geoelectrical characterization of superficial deposits in Western Antarctica (Livingston Island, South Shetland Islands) Muñoz Martín, Alfonso Giner Robles, J. L. González Casado, J. M. López Martínez, Jerónimo Durán Valsero, Juan José Gumiel Martínez, Pablo Serrano, E. 1999 http://hdl.handle.net/10272/9929 spa spa Sociedad Geológica de España http://hdl.handle.net/10272/9929 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess CC-BY-NC-ND Geophysical prospecting Resistivity Quaternary deposits Permafrost Western Antarctica info:eu-repo/semantics/article 1999 ftunivhuelva 2021-08-11T19:41:17Z The geophysical study of superficial deposits (mainly gravels) in ice-free areas near the seashore in the South Shetland Islands (Antarctica) allows establishing the possible existence of permafrost and buried ice bodies. In this work we have investigated the internal structure of Quaternary sediments using the resistivity method (vertical electric sounding, V.E.S.), with the purpose of establishing the resistivity values of the different materials and their geometry. We present here the results obtained from 1 7 vertical electric soundings carried out in Caleta Española, (north coast of Hurd Peninsula), and in the surroundings of Caleta del Glaciar Rocoso (south coast of Hurd Peninsula), both in Livingston Island. Vertical electric soundings interpretation has allowed us to characterise different units from the resistivity values (active layer, permafrost, buried ice, Quaternary deposits and their basement), and to establish the inter-phase between sea water and continental water. Moreover, with the resistivity method we have deduced the spatial distribution of some of these beds. In this way the permafrost (with resistivity values ranging between 13000 and 35000 Q*m), and the associated active layer, is restrained to shallow depths (< 2 m) and located in the surveyed areas faraway from the seaside (i.e. mainly in the upper raised beaches). Buried ice under coarse Quaternary deposits have resistivity values of one major order magnitude than the permafrost (> 60000 Q*m) and has been only found in the studied rock glacier Article in Journal/Newspaper Antarc* Antarctica Antártida Ice Livingston Island permafrost South Shetland Islands Universidad de Huelva: Arias Montano Caleta del Glaciar Rocoso ENVELOPE(-59.800,-59.800,-62.517,-62.517) Caleta Española ENVELOPE(-60.383,-60.383,-62.660,-62.660) Española ENVELOPE(-60.383,-60.383,-62.660,-62.660) Faraway ENVELOPE(-28.763,-28.763,-79.200,-79.200) Glaciar Rocoso ENVELOPE(-60.406,-60.406,-62.714,-62.714) Hurd ENVELOPE(-60.366,-60.366,-62.682,-62.682) Hurd peninsula ENVELOPE(-60.366,-60.366,-62.676,-62.676) isla Livingston ENVELOPE(-60.500,-60.500,-62.600,-62.600) islas Shetland del Sur ENVELOPE(-58.000,-58.000,-62.000,-62.000) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Shetland del Sur ENVELOPE(-58.000,-58.000,-62.000,-62.000) South Shetland Islands |
institution |
Open Polar |
collection |
Universidad de Huelva: Arias Montano |
op_collection_id |
ftunivhuelva |
language |
Spanish |
topic |
Geophysical prospecting Resistivity Quaternary deposits Permafrost Western Antarctica |
spellingShingle |
Geophysical prospecting Resistivity Quaternary deposits Permafrost Western Antarctica Muñoz Martín, Alfonso Giner Robles, J. L. González Casado, J. M. López Martínez, Jerónimo Durán Valsero, Juan José Gumiel Martínez, Pablo Serrano, E. Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
topic_facet |
Geophysical prospecting Resistivity Quaternary deposits Permafrost Western Antarctica |
description |
The geophysical study of superficial deposits (mainly gravels) in ice-free areas near the seashore in the South Shetland Islands (Antarctica) allows establishing the possible existence of permafrost and buried ice bodies. In this work we have investigated the internal structure of Quaternary sediments using the resistivity method (vertical electric sounding, V.E.S.), with the purpose of establishing the resistivity values of the different materials and their geometry. We present here the results obtained from 1 7 vertical electric soundings carried out in Caleta Española, (north coast of Hurd Peninsula), and in the surroundings of Caleta del Glaciar Rocoso (south coast of Hurd Peninsula), both in Livingston Island. Vertical electric soundings interpretation has allowed us to characterise different units from the resistivity values (active layer, permafrost, buried ice, Quaternary deposits and their basement), and to establish the inter-phase between sea water and continental water. Moreover, with the resistivity method we have deduced the spatial distribution of some of these beds. In this way the permafrost (with resistivity values ranging between 13000 and 35000 Q*m), and the associated active layer, is restrained to shallow depths (< 2 m) and located in the surveyed areas faraway from the seaside (i.e. mainly in the upper raised beaches). Buried ice under coarse Quaternary deposits have resistivity values of one major order magnitude than the permafrost (> 60000 Q*m) and has been only found in the studied rock glacier |
format |
Article in Journal/Newspaper |
author |
Muñoz Martín, Alfonso Giner Robles, J. L. González Casado, J. M. López Martínez, Jerónimo Durán Valsero, Juan José Gumiel Martínez, Pablo Serrano, E. |
author_facet |
Muñoz Martín, Alfonso Giner Robles, J. L. González Casado, J. M. López Martínez, Jerónimo Durán Valsero, Juan José Gumiel Martínez, Pablo Serrano, E. |
author_sort |
Muñoz Martín, Alfonso |
title |
Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
title_short |
Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
title_full |
Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
title_fullStr |
Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
title_full_unstemmed |
Caracterización geoeléctrica de depósitos superficiales en la Antártida Occidental (Isla Livingston, Islas Shetland del Sur) |
title_sort |
caracterización geoeléctrica de depósitos superficiales en la antártida occidental (isla livingston, islas shetland del sur) |
publisher |
Sociedad Geológica de España |
publishDate |
1999 |
url |
http://hdl.handle.net/10272/9929 |
long_lat |
ENVELOPE(-59.800,-59.800,-62.517,-62.517) ENVELOPE(-60.383,-60.383,-62.660,-62.660) ENVELOPE(-60.383,-60.383,-62.660,-62.660) ENVELOPE(-28.763,-28.763,-79.200,-79.200) ENVELOPE(-60.406,-60.406,-62.714,-62.714) ENVELOPE(-60.366,-60.366,-62.682,-62.682) ENVELOPE(-60.366,-60.366,-62.676,-62.676) ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-58.000,-58.000,-62.000,-62.000) ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-58.000,-58.000,-62.000,-62.000) |
geographic |
Caleta del Glaciar Rocoso Caleta Española Española Faraway Glaciar Rocoso Hurd Hurd peninsula isla Livingston islas Shetland del Sur Livingston Island Shetland del Sur South Shetland Islands |
geographic_facet |
Caleta del Glaciar Rocoso Caleta Española Española Faraway Glaciar Rocoso Hurd Hurd peninsula isla Livingston islas Shetland del Sur Livingston Island Shetland del Sur South Shetland Islands |
genre |
Antarc* Antarctica Antártida Ice Livingston Island permafrost South Shetland Islands |
genre_facet |
Antarc* Antarctica Antártida Ice Livingston Island permafrost South Shetland Islands |
op_relation |
http://hdl.handle.net/10272/9929 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766242494006165504 |