The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula
This paper addresses the Jurassic–Cretaceous stratigraphic evolution of fore-arc deposits exposed along the west coast of the northern Antarctic Peninsula. In the South Shetland Islands, Upper Jurassic deep-marine sediments are uncomformably overlain by a Lower Cretaceous volcaniclastic sequence tha...
Published in: | International Geology Review |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://archive-ouverte.unige.ch/unige:122764 |
id |
ftunivgeneve:oai:unige.ch:aou:unige:122764 |
---|---|
record_format |
openpolar |
spelling |
ftunivgeneve:oai:unige.ch:aou:unige:122764 2023-10-01T03:51:53+02:00 The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula Bastias Silva, Miguel Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Alan Pankhurst, Robert Castillo, Paula Fanning, Mark Ugalde, Raúl 2019 https://archive-ouverte.unige.ch/unige:122764 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1080/00206814.2019.1655669 https://archive-ouverte.unige.ch/unige:122764 unige:122764 info:eu-repo/semantics/restrictedAccess ISSN: 0020-6814 International Geology Review, (2019) p. 1-18 info:eu-repo/classification/ddc/550 Tectono-stratigraphical evolution Weddell Sea South Shetland Islands Antarctic Peninsula Jurassic Cretaceous Basin evolution info:eu-repo/semantics/article Text Article scientifique info:eu-repo/semantics/publishedVersion 2019 ftunivgeneve https://doi.org/10.1080/00206814.2019.1655669 2023-09-07T07:52:02Z This paper addresses the Jurassic–Cretaceous stratigraphic evolution of fore-arc deposits exposed along the west coast of the northern Antarctic Peninsula. In the South Shetland Islands, Upper Jurassic deep-marine sediments are uncomformably overlain by a Lower Cretaceous volcaniclastic sequence that crops out on Livingston, Snow and Low islands. U-Pb zircon ages are presented for the upper Anchorage Formation (153.1 ± 1.7 Ma) and the Cape Wallace granodiorite of Low Island (137.1 ± 1.7 Ma) as well as 40Ar/39Ar ages of 136–139 Ma for Low Island andesites. Data are also presented for a U-Pb age of 109.0 ± 1.4 Ma for the upper volcanic succession of Snow Island. In combination with published stratigraphy, these data provide a refined chrono- and litho-stratigraphic framework for the deposits herein referred to as the Byers Basin. Tentative correlation is explored with previously described deposits on Adelaide and Alexander islands, which could suggest further continuation of the Byers Basin towards the south. We also discuss possible correlation of the Byers Basin with the Larsen Basin, a sequence that shows the evolution of foreland to back-arc deposits more or less contemporaneously with the fore-arc to intra-arc evolution of the Byers Basin. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Low Island Snow Island South Shetland Islands Weddell Sea Université de Genève: Archive ouverte UNIGE Antarctic Antarctic Peninsula Weddell Sea South Shetland Islands Anchorage Weddell Byers ENVELOPE(-60.283,-60.283,-63.900,-63.900) Larsen Basin ENVELOPE(-60.000,-60.000,-68.000,-68.000) Snow Island ENVELOPE(-61.383,-61.383,-62.776,-62.776) Alexander Islands ENVELOPE(-129.308,-129.308,52.956,52.956) Cape Wallace ENVELOPE(-62.250,-62.250,-63.217,-63.217) International Geology Review 62 11 1467 1484 |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Tectono-stratigraphical evolution Weddell Sea South Shetland Islands Antarctic Peninsula Jurassic Cretaceous Basin evolution |
spellingShingle |
info:eu-repo/classification/ddc/550 Tectono-stratigraphical evolution Weddell Sea South Shetland Islands Antarctic Peninsula Jurassic Cretaceous Basin evolution Bastias Silva, Miguel Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Alan Pankhurst, Robert Castillo, Paula Fanning, Mark Ugalde, Raúl The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
topic_facet |
info:eu-repo/classification/ddc/550 Tectono-stratigraphical evolution Weddell Sea South Shetland Islands Antarctic Peninsula Jurassic Cretaceous Basin evolution |
description |
This paper addresses the Jurassic–Cretaceous stratigraphic evolution of fore-arc deposits exposed along the west coast of the northern Antarctic Peninsula. In the South Shetland Islands, Upper Jurassic deep-marine sediments are uncomformably overlain by a Lower Cretaceous volcaniclastic sequence that crops out on Livingston, Snow and Low islands. U-Pb zircon ages are presented for the upper Anchorage Formation (153.1 ± 1.7 Ma) and the Cape Wallace granodiorite of Low Island (137.1 ± 1.7 Ma) as well as 40Ar/39Ar ages of 136–139 Ma for Low Island andesites. Data are also presented for a U-Pb age of 109.0 ± 1.4 Ma for the upper volcanic succession of Snow Island. In combination with published stratigraphy, these data provide a refined chrono- and litho-stratigraphic framework for the deposits herein referred to as the Byers Basin. Tentative correlation is explored with previously described deposits on Adelaide and Alexander islands, which could suggest further continuation of the Byers Basin towards the south. We also discuss possible correlation of the Byers Basin with the Larsen Basin, a sequence that shows the evolution of foreland to back-arc deposits more or less contemporaneously with the fore-arc to intra-arc evolution of the Byers Basin. |
format |
Article in Journal/Newspaper |
author |
Bastias Silva, Miguel Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Alan Pankhurst, Robert Castillo, Paula Fanning, Mark Ugalde, Raúl |
author_facet |
Bastias Silva, Miguel Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Alan Pankhurst, Robert Castillo, Paula Fanning, Mark Ugalde, Raúl |
author_sort |
Bastias Silva, Miguel Joaquin |
title |
The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
title_short |
The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
title_full |
The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
title_fullStr |
The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
title_full_unstemmed |
The Byers Basin: Jurassic-Cretaceous tectonic and depositional evolution of the forearc deposits of the South Shetland Islands and its implications for the northern Antarctic Peninsula |
title_sort |
byers basin: jurassic-cretaceous tectonic and depositional evolution of the forearc deposits of the south shetland islands and its implications for the northern antarctic peninsula |
publishDate |
2019 |
url |
https://archive-ouverte.unige.ch/unige:122764 |
long_lat |
ENVELOPE(-60.283,-60.283,-63.900,-63.900) ENVELOPE(-60.000,-60.000,-68.000,-68.000) ENVELOPE(-61.383,-61.383,-62.776,-62.776) ENVELOPE(-129.308,-129.308,52.956,52.956) ENVELOPE(-62.250,-62.250,-63.217,-63.217) |
geographic |
Antarctic Antarctic Peninsula Weddell Sea South Shetland Islands Anchorage Weddell Byers Larsen Basin Snow Island Alexander Islands Cape Wallace |
geographic_facet |
Antarctic Antarctic Peninsula Weddell Sea South Shetland Islands Anchorage Weddell Byers Larsen Basin Snow Island Alexander Islands Cape Wallace |
genre |
Antarc* Antarctic Antarctic Peninsula Low Island Snow Island South Shetland Islands Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Low Island Snow Island South Shetland Islands Weddell Sea |
op_source |
ISSN: 0020-6814 International Geology Review, (2019) p. 1-18 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1080/00206814.2019.1655669 https://archive-ouverte.unige.ch/unige:122764 unige:122764 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/00206814.2019.1655669 |
container_title |
International Geology Review |
container_volume |
62 |
container_issue |
11 |
container_start_page |
1467 |
op_container_end_page |
1484 |
_version_ |
1778517214362599424 |