Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena
We report paleomagnetic results from the Miers Bluff Formation and Tertiary dykes and andesites in Livingston Island (South Shetland Islands, Antarctic Peninsula). Most of the samples carry stable magnetization, residing in a low coercivity phase, most likely (Ti)magnetite. Progressive untilting of...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Universitat de Barcelona
1999
|
Subjects: | |
Online Access: | http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079 |
id |
ftubarceojs:oai:revistes.ub.edu:article/5079 |
---|---|
record_format |
openpolar |
spelling |
ftubarceojs:oai:revistes.ub.edu:article/5079 2023-05-15T13:32:26+02:00 Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena PARÉS, J.M. DINARÈS-TURELL, J. 1999-01-13 text/html application/pdf http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079 eng eng Universitat de Barcelona http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079/6786 http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079/6787 http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079 Acta Geologica Hispanica; Vol.:34 Núm.: 4; 339-351 2173-6537 0567-7505 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1999 ftubarceojs 2022-12-26T13:40:08Z We report paleomagnetic results from the Miers Bluff Formation and Tertiary dykes and andesites in Livingston Island (South Shetland Islands, Antarctic Peninsula). Most of the samples carry stable magnetization, residing in a low coercivity phase, most likely (Ti)magnetite. Progressive untilting of the Characteristic Remanent Magnetization directions reveals that the magnetization of the turbidites (Miers Bluff Fm.) is post-folding. Miers Bluff and the dyke mean directions do not show any significant difference, suggesting the same magnetization age. Thus, a local Cenozoic remagnetization is proposed. Also, the paleomagnetic poles suggest a tectonic tilting that would explain the observed discrepancies between the produced paleopoles and the APWP for the Antarctic Peninsula. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antártica Livingston Island South Shetland Islands Revistes Científiques de la Universitat de Barcelona Antarctic The Antarctic Antarctic Peninsula South Shetland Islands Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Miers Bluff ENVELOPE(-60.438,-60.438,-62.720,-62.720) |
institution |
Open Polar |
collection |
Revistes Científiques de la Universitat de Barcelona |
op_collection_id |
ftubarceojs |
language |
English |
description |
We report paleomagnetic results from the Miers Bluff Formation and Tertiary dykes and andesites in Livingston Island (South Shetland Islands, Antarctic Peninsula). Most of the samples carry stable magnetization, residing in a low coercivity phase, most likely (Ti)magnetite. Progressive untilting of the Characteristic Remanent Magnetization directions reveals that the magnetization of the turbidites (Miers Bluff Fm.) is post-folding. Miers Bluff and the dyke mean directions do not show any significant difference, suggesting the same magnetization age. Thus, a local Cenozoic remagnetization is proposed. Also, the paleomagnetic poles suggest a tectonic tilting that would explain the observed discrepancies between the produced paleopoles and the APWP for the Antarctic Peninsula. |
format |
Article in Journal/Newspaper |
author |
PARÉS, J.M. DINARÈS-TURELL, J. |
spellingShingle |
PARÉS, J.M. DINARÈS-TURELL, J. Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
author_facet |
PARÉS, J.M. DINARÈS-TURELL, J. |
author_sort |
PARÉS, J.M. |
title |
Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
title_short |
Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
title_full |
Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
title_fullStr |
Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
title_full_unstemmed |
Datos paleomagnéticos del sustrato rocoso de la isla de Livingston (Península Antártica): implicaciones tectónicas en la evolución neógena |
title_sort |
datos paleomagnéticos del sustrato rocoso de la isla de livingston (península antártica): implicaciones tectónicas en la evolución neógena |
publisher |
Universitat de Barcelona |
publishDate |
1999 |
url |
http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(-54.065,-54.065,49.700,49.700) ENVELOPE(-60.438,-60.438,-62.720,-62.720) |
geographic |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands Livingston Island Miers Tilting Miers Bluff |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands Livingston Island Miers Tilting Miers Bluff |
genre |
Antarc* Antarctic Antarctic Peninsula Antártica Livingston Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antártica Livingston Island South Shetland Islands |
op_source |
Acta Geologica Hispanica; Vol.:34 Núm.: 4; 339-351 2173-6537 0567-7505 |
op_relation |
http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079/6786 http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079/6787 http://revistes.ub.edu/index.php/ActaGeologica/article/view/5079 |
_version_ |
1766026996203126784 |