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...
Main Author: | |
---|---|
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 |
id |
ftdoajarticles:oai:doaj.org/article:b04183f2d6af4e958d7c977ee621456f |
---|---|
record_format |
openpolar |
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 |
_version_ |
1766052668325756928 |