Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault?
Deception Island (South Shetlands, Antarctica) is one of the most active volcanoes in Antarctica, having erupted recently in 1967, 1969 and 1970, damaging scientific stations on the island. It is also seismically very active. The island has attracted the attention of many researchers as it constitut...
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Online Access: | http://dx.doi.org/10.1017/s0954102005002841 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102005002841 |
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crcambridgeupr:10.1017/s0954102005002841 2024-03-03T08:37:21+00:00 Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? FERNÁNDEZ-IBÁÑEZ, FERMÍN PÉREZ-LÓPEZ, RAUL MARTÍNEZ-DÍAZ, JOSÉ J. PAREDES, CARLOS GINER-ROBLES, JORGE L. CASELLI, ALBERTO T. IBÁÑEZ, JESÚS M. 2005 http://dx.doi.org/10.1017/s0954102005002841 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102005002841 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 17, issue 3, page 418-426 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2005 crcambridgeupr https://doi.org/10.1017/s0954102005002841 2024-02-08T08:36:23Z Deception Island (South Shetlands, Antarctica) is one of the most active volcanoes in Antarctica, having erupted recently in 1967, 1969 and 1970, damaging scientific stations on the island. It is also seismically very active. The island has attracted the attention of many researchers as it constitutes an undisturbed natural laboratory to study seismo-volcanic events and how they affect landscape modelling and evolution. One of the most remarkable geological and geomorphological features on Deception Island is the linearity of its easternmost coastal landform, the origin of which remains unknown. Some answers, based on presence of strike-slip fault or on the ice cap and beach geomorphological dynamics, have been reported in the literature. Our new work provides several indications of the existence of a dip-slip submarine fault, parallel to the coast (NNW–SSE), which suggests a tectonic origin for this morphological feature. Uplifted marine terraces, incision of a fluvial network over the ice cap, normal faulting parallel to the coast in the north and south rock heads bounding the beach and sharp shelf-break with rather constant slope, constitute some of this evidence. Terrace uplift and fluvial channel incision decreasing southward from Macaroni Point, indicates possible tilt movement across this inferred fault plane. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Deception Island Ice cap West Antarctica Cambridge University Press West Antarctica Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Recta ENVELOPE(-60.515,-60.515,-62.932,-62.932) Macaroni Point ENVELOPE(-60.532,-60.532,-62.899,-62.899) Costa Recta ENVELOPE(-60.515,-60.515,-62.932,-62.932) Antarctic Science 17 3 418 426 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography FERNÁNDEZ-IBÁÑEZ, FERMÍN PÉREZ-LÓPEZ, RAUL MARTÍNEZ-DÍAZ, JOSÉ J. PAREDES, CARLOS GINER-ROBLES, JORGE L. CASELLI, ALBERTO T. IBÁÑEZ, JESÚS M. Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Deception Island (South Shetlands, Antarctica) is one of the most active volcanoes in Antarctica, having erupted recently in 1967, 1969 and 1970, damaging scientific stations on the island. It is also seismically very active. The island has attracted the attention of many researchers as it constitutes an undisturbed natural laboratory to study seismo-volcanic events and how they affect landscape modelling and evolution. One of the most remarkable geological and geomorphological features on Deception Island is the linearity of its easternmost coastal landform, the origin of which remains unknown. Some answers, based on presence of strike-slip fault or on the ice cap and beach geomorphological dynamics, have been reported in the literature. Our new work provides several indications of the existence of a dip-slip submarine fault, parallel to the coast (NNW–SSE), which suggests a tectonic origin for this morphological feature. Uplifted marine terraces, incision of a fluvial network over the ice cap, normal faulting parallel to the coast in the north and south rock heads bounding the beach and sharp shelf-break with rather constant slope, constitute some of this evidence. Terrace uplift and fluvial channel incision decreasing southward from Macaroni Point, indicates possible tilt movement across this inferred fault plane. |
format |
Article in Journal/Newspaper |
author |
FERNÁNDEZ-IBÁÑEZ, FERMÍN PÉREZ-LÓPEZ, RAUL MARTÍNEZ-DÍAZ, JOSÉ J. PAREDES, CARLOS GINER-ROBLES, JORGE L. CASELLI, ALBERTO T. IBÁÑEZ, JESÚS M. |
author_facet |
FERNÁNDEZ-IBÁÑEZ, FERMÍN PÉREZ-LÓPEZ, RAUL MARTÍNEZ-DÍAZ, JOSÉ J. PAREDES, CARLOS GINER-ROBLES, JORGE L. CASELLI, ALBERTO T. IBÁÑEZ, JESÚS M. |
author_sort |
FERNÁNDEZ-IBÁÑEZ, FERMÍN |
title |
Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
title_short |
Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
title_full |
Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
title_fullStr |
Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
title_full_unstemmed |
Costa Recta beach, Deception Island, West Antarctica: a retreated scarp of a submarine fault? |
title_sort |
costa recta beach, deception island, west antarctica: a retreated scarp of a submarine fault? |
publisher |
Cambridge University Press (CUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1017/s0954102005002841 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102005002841 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.515,-60.515,-62.932,-62.932) ENVELOPE(-60.532,-60.532,-62.899,-62.899) ENVELOPE(-60.515,-60.515,-62.932,-62.932) |
geographic |
West Antarctica Deception Island Recta Macaroni Point Costa Recta |
geographic_facet |
West Antarctica Deception Island Recta Macaroni Point Costa Recta |
genre |
Antarc* Antarctic Science Antarctica Deception Island Ice cap West Antarctica |
genre_facet |
Antarc* Antarctic Science Antarctica Deception Island Ice cap West Antarctica |
op_source |
Antarctic Science volume 17, issue 3, page 418-426 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102005002841 |
container_title |
Antarctic Science |
container_volume |
17 |
container_issue |
3 |
container_start_page |
418 |
op_container_end_page |
426 |
_version_ |
1792498321713004544 |