The boundary of Larsen Basin on Tabarin Peninsula, Antarctica
The Larsen Basin is the depositional area including all the upper Mesozoic-lower Cenozoic sedimentary rocks on the continental shelf of the northern Antarctic Peninsula. The western boundary between the basin fill and the rocks forming its technical basement, is not exposed, and was defined on the b...
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ftunibueairesbd:paperaa:paper_00044822_v59_n1_p38_delValle 2023-05-15T13:42:25+02:00 The boundary of Larsen Basin on Tabarin Peninsula, Antarctica del Valle, R.A. Scasso, R.A. 2004 application/pdf https://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p38_delValle eng eng http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p38_delValle info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar CC-BY Rev. Asoc. Geol. Argent. 2004;59(1):38-44 Early Cretaceous Larsen Basin Northern Antarctic Peninsula Provenance Stratigraphy Tabarin Peninsula basin fill Cretaceous depositional environment regression sequence stratigraphy Antarctic Peninsula Antarctica Arctic and Antarctic West Antarctica World info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion 2004 ftunibueairesbd https://doi.org/20.500.12110/paper_00044822_v59_n1_p38_delValle 2023-02-16T01:52:19Z The Larsen Basin is the depositional area including all the upper Mesozoic-lower Cenozoic sedimentary rocks on the continental shelf of the northern Antarctic Peninsula. The western boundary between the basin fill and the rocks forming its technical basement, is not exposed, and was defined on the basis of aeromagnetic data. On petrological grounds, the Mesozoic marine sedimentary rocks exposed on western Tabarin Peninsula, at the north-eastern extremity of the Antarctic Peninsula, are assigned to the lower part of the Aptian-Eocene regressive megasequence that forms the basin filling. These rocks are faulted against sediments of the Antarctic Peninsula magmatic arc, suggesting that post- depositional tectonic movements probably occurred. This compressional deformation is assigned to mid-Cretaceous times, when the Coniacian partial basin inversion was accompanied by westward-verging deformation at the western basin margin. Although the original extent of the basin cannot be discerned from these data, the lithostratigraphical evidence and geographical position of the basin sediments, together with terrestrial magnetic data, confirm that the Larsen Basin extends onto the southern part of Tabarin Peninsula, and indicate that the western limit of the basin is located northward of the previously proposed limit. © 2004 Asociación Geológica Argentina. Fil:del Valle, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scasso, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Arctic West Antarctica Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) Antarctic Antarctic Peninsula Arctic Argentina Larsen Basin ENVELOPE(-60.000,-60.000,-68.000,-68.000) Tabarin peninsula ENVELOPE(-57.000,-57.000,-63.533,-63.533) The Antarctic West Antarctica Western Basin |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
English |
topic |
Early Cretaceous Larsen Basin Northern Antarctic Peninsula Provenance Stratigraphy Tabarin Peninsula basin fill Cretaceous depositional environment regression sequence stratigraphy Antarctic Peninsula Antarctica Arctic and Antarctic West Antarctica World |
spellingShingle |
Early Cretaceous Larsen Basin Northern Antarctic Peninsula Provenance Stratigraphy Tabarin Peninsula basin fill Cretaceous depositional environment regression sequence stratigraphy Antarctic Peninsula Antarctica Arctic and Antarctic West Antarctica World del Valle, R.A. Scasso, R.A. The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
topic_facet |
Early Cretaceous Larsen Basin Northern Antarctic Peninsula Provenance Stratigraphy Tabarin Peninsula basin fill Cretaceous depositional environment regression sequence stratigraphy Antarctic Peninsula Antarctica Arctic and Antarctic West Antarctica World |
description |
The Larsen Basin is the depositional area including all the upper Mesozoic-lower Cenozoic sedimentary rocks on the continental shelf of the northern Antarctic Peninsula. The western boundary between the basin fill and the rocks forming its technical basement, is not exposed, and was defined on the basis of aeromagnetic data. On petrological grounds, the Mesozoic marine sedimentary rocks exposed on western Tabarin Peninsula, at the north-eastern extremity of the Antarctic Peninsula, are assigned to the lower part of the Aptian-Eocene regressive megasequence that forms the basin filling. These rocks are faulted against sediments of the Antarctic Peninsula magmatic arc, suggesting that post- depositional tectonic movements probably occurred. This compressional deformation is assigned to mid-Cretaceous times, when the Coniacian partial basin inversion was accompanied by westward-verging deformation at the western basin margin. Although the original extent of the basin cannot be discerned from these data, the lithostratigraphical evidence and geographical position of the basin sediments, together with terrestrial magnetic data, confirm that the Larsen Basin extends onto the southern part of Tabarin Peninsula, and indicate that the western limit of the basin is located northward of the previously proposed limit. © 2004 Asociación Geológica Argentina. Fil:del Valle, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scasso, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
format |
Article in Journal/Newspaper |
author |
del Valle, R.A. Scasso, R.A. |
author_facet |
del Valle, R.A. Scasso, R.A. |
author_sort |
del Valle, R.A. |
title |
The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
title_short |
The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
title_full |
The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
title_fullStr |
The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
title_full_unstemmed |
The boundary of Larsen Basin on Tabarin Peninsula, Antarctica |
title_sort |
boundary of larsen basin on tabarin peninsula, antarctica |
publishDate |
2004 |
url |
https://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p38_delValle |
long_lat |
ENVELOPE(-60.000,-60.000,-68.000,-68.000) ENVELOPE(-57.000,-57.000,-63.533,-63.533) |
geographic |
Antarctic Antarctic Peninsula Arctic Argentina Larsen Basin Tabarin peninsula The Antarctic West Antarctica Western Basin |
geographic_facet |
Antarctic Antarctic Peninsula Arctic Argentina Larsen Basin Tabarin peninsula The Antarctic West Antarctica Western Basin |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic West Antarctica |
op_source |
Rev. Asoc. Geol. Argent. 2004;59(1):38-44 |
op_relation |
http://hdl.handle.net/20.500.12110/paper_00044822_v59_n1_p38_delValle |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.12110/paper_00044822_v59_n1_p38_delValle |
_version_ |
1766167614081466368 |