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 deepmarine sediments are uncomformably overlain by a Lower Cretaceous volcaniclastic sequence that...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/210575 2024-01-14T10:02:27+01:00 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, Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Pankhurst, Robert J Castillo Gonzalez, Paula Fanning, Christopher Mark Ugalde, Raúl application/pdf http://hdl.handle.net/1885/210575 https://doi.org/10.1080/00206814.2019.1655669 https://openresearch-repository.anu.edu.au/bitstream/1885/210575/3/01_Bastias_The_Byers_Basin%253A_2019.pdf.jpg en_AU eng V.H. Winston & Sons 0020-6814 http://hdl.handle.net/1885/210575 doi:10.1080/00206814.2019.1655669 https://openresearch-repository.anu.edu.au/bitstream/1885/210575/3/01_Bastias_The_Byers_Basin%253A_2019.pdf.jpg © 2019 Informa UK Limited, trading as Taylor & Francis Group International Geology Review Journal article ftanucanberra https://doi.org/10.1080/00206814.2019.1655669 2023-12-15T09:34:58Z 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 deepmarine 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 Australian National University: ANU Digital Collections Antarctic Antarctic Peninsula South Shetland Islands Anchorage 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 |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
English |
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 deepmarine 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, Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Pankhurst, Robert J Castillo Gonzalez, Paula Fanning, Christopher Mark Ugalde, Raúl |
spellingShingle |
Bastias, Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Pankhurst, Robert J Castillo Gonzalez, Paula Fanning, Christopher 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 |
author_facet |
Bastias, Joaquin Calderón, Mauricio Israel, Lea Hervé, Francisco Spikings, Richard Pankhurst, Robert J Castillo Gonzalez, Paula Fanning, Christopher Mark Ugalde, Raúl |
author_sort |
Bastias, 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 |
publisher |
V.H. Winston & Sons |
url |
http://hdl.handle.net/1885/210575 https://doi.org/10.1080/00206814.2019.1655669 https://openresearch-repository.anu.edu.au/bitstream/1885/210575/3/01_Bastias_The_Byers_Basin%253A_2019.pdf.jpg |
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 South Shetland Islands Anchorage Byers Larsen Basin Snow Island Alexander Islands Cape Wallace |
geographic_facet |
Antarctic Antarctic Peninsula South Shetland Islands Anchorage Byers Larsen Basin Snow Island Alexander Islands Cape Wallace |
genre |
Antarc* Antarctic Antarctic Peninsula Low Island Snow Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Low Island Snow Island South Shetland Islands |
op_source |
International Geology Review |
op_relation |
0020-6814 http://hdl.handle.net/1885/210575 doi:10.1080/00206814.2019.1655669 https://openresearch-repository.anu.edu.au/bitstream/1885/210575/3/01_Bastias_The_Byers_Basin%253A_2019.pdf.jpg |
op_rights |
© 2019 Informa UK Limited, trading as Taylor & Francis Group |
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_ |
1788057476809097216 |