Volcanism and Volcanic Rocks in Antarctica

The distribution of volcanoes in Antarctica, especially those of the later part of Cenozoic time, has considerable bearing on any interpretations of orogenic patterns or history. The volcanic rocks vary considerably in composition throughout the Marie Byrd Land and Victoria Land, forming a large alk...

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Main Author: Hajime KURASAWA
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 1977
Subjects:
Online Access:https://doi.org/10.15094/00007920
https://doaj.org/article/b04183f2d6af4e958d7c977ee621456f
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spelling ftdoajarticles:oai:doaj.org/article:b04183f2d6af4e958d7c977ee621456f 2023-05-15T13:34:26+02:00 Volcanism and Volcanic Rocks in Antarctica Hajime KURASAWA 1977-03-01T00:00:00Z https://doi.org/10.15094/00007920 https://doaj.org/article/b04183f2d6af4e958d7c977ee621456f EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00007920 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007920 0085-7289 2432-079X https://doaj.org/article/b04183f2d6af4e958d7c977ee621456f Antarctic Record, Iss 58, Pp 204-234 (1977) Geography (General) G1-922 article 1977 ftdoajarticles https://doi.org/10.15094/00007920 2022-12-31T15:26:49Z The distribution of volcanoes in Antarctica, especially those of the later part of Cenozoic time, has considerable bearing on any interpretations of orogenic patterns or history. The volcanic rocks vary considerably in composition throughout the Marie Byrd Land and Victoria Land, forming a large alkalic province. The South Shetland Islands, lying of the Antarctic Peninsula, are composed of olivine basalt and andesite, all of which are rich in soda, but their mineralogy is similar to that of high-alkali tholeiite with high-alumina content and its derivatives. Strontium isotopes and some minor elements of the Ross Island volcanics which occur on the margin of the continent are very similar to those of oceanic island as a hot spot. In this paper the origin and differentiation of the volcanic rocks from West Antarctica are discussed on the basis of chemical composition and strontium isotopes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Marie Byrd Land Ross Island South Shetland Islands Victoria Land West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula Byrd Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) Ross Island South Shetland Islands The Antarctic Victoria Land West Antarctica
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
Japanese
topic Geography (General)
G1-922
spellingShingle Geography (General)
G1-922
Hajime KURASAWA
Volcanism and Volcanic Rocks in Antarctica
topic_facet Geography (General)
G1-922
description The distribution of volcanoes in Antarctica, especially those of the later part of Cenozoic time, has considerable bearing on any interpretations of orogenic patterns or history. The volcanic rocks vary considerably in composition throughout the Marie Byrd Land and Victoria Land, forming a large alkalic province. The South Shetland Islands, lying of the Antarctic Peninsula, are composed of olivine basalt and andesite, all of which are rich in soda, but their mineralogy is similar to that of high-alkali tholeiite with high-alumina content and its derivatives. Strontium isotopes and some minor elements of the Ross Island volcanics which occur on the margin of the continent are very similar to those of oceanic island as a hot spot. In this paper the origin and differentiation of the volcanic rocks from West Antarctica are discussed on the basis of chemical composition and strontium isotopes.
format Article in Journal/Newspaper
author Hajime KURASAWA
author_facet Hajime KURASAWA
author_sort Hajime KURASAWA
title Volcanism and Volcanic Rocks in Antarctica
title_short Volcanism and Volcanic Rocks in Antarctica
title_full Volcanism and Volcanic Rocks in Antarctica
title_fullStr Volcanism and Volcanic Rocks in Antarctica
title_full_unstemmed Volcanism and Volcanic Rocks in Antarctica
title_sort volcanism and volcanic rocks in antarctica
publisher National Institute of Polar Research
publishDate 1977
url https://doi.org/10.15094/00007920
https://doaj.org/article/b04183f2d6af4e958d7c977ee621456f
long_lat ENVELOPE(-130.000,-130.000,-78.000,-78.000)
geographic Antarctic
Antarctic Peninsula
Byrd
Marie Byrd Land
Ross Island
South Shetland Islands
The Antarctic
Victoria Land
West Antarctica
geographic_facet Antarctic
Antarctic Peninsula
Byrd
Marie Byrd Land
Ross Island
South Shetland Islands
The Antarctic
Victoria Land
West Antarctica
genre Antarc*
Antarctic
Antarctic Peninsula
Antarctica
Marie Byrd Land
Ross Island
South Shetland Islands
Victoria Land
West Antarctica
genre_facet Antarc*
Antarctic
Antarctic Peninsula
Antarctica
Marie Byrd Land
Ross Island
South Shetland Islands
Victoria Land
West Antarctica
op_source Antarctic Record, Iss 58, Pp 204-234 (1977)
op_relation http://doi.org/10.15094/00007920
https://doaj.org/toc/0085-7289
https://doaj.org/toc/2432-079X
doi:10.15094/00007920
0085-7289
2432-079X
https://doaj.org/article/b04183f2d6af4e958d7c977ee621456f
op_doi https://doi.org/10.15094/00007920
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