A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica
Late Cretaceous–early Tertiary subduction-related fore-arc volcanic rocks are exposed in a north–south linear belt along the length of Alexander Island. The age and tectonic setting of these rocks is well understood; they are not considered to represent “normal” arc magmas but were generated in the...
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Cambridge University Press (CUP)
1997
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Online Access: | http://dx.doi.org/10.1017/s0954102097000266 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102097000266 |
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crcambridgeupr:10.1017/s0954102097000266 2024-03-03T08:36:27+00:00 A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica McCarron, Joe J. 1997 http://dx.doi.org/10.1017/s0954102097000266 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102097000266 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 9, issue 2, page 209-220 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1997 crcambridgeupr https://doi.org/10.1017/s0954102097000266 2024-02-08T08:36:23Z Late Cretaceous–early Tertiary subduction-related fore-arc volcanic rocks are exposed in a north–south linear belt along the length of Alexander Island. The age and tectonic setting of these rocks is well understood; they are not considered to represent “normal” arc magmas but were generated in the fore-arc as a result of ridge subduction. Due to their distinct composition and mode of formation, they are no longer considered to be genetically related to the Antarctic Peninsula magmatic arc. They are therefore removed from the Antarctic Peninsula Volcanic Group and placed in a newly defined Alexander Island Volcanic Group. The group is made up of the Monteverdi, Staccato, Walton, Colbert, Elgar and Finlandia formations, which vary widely in lithology, facies and age. The Colbert and Elgar formations are subdivided into nine and three members respectively. Type localities, representative lithologies and age of each of the formations are discussed. The Staccato and Colbert Magmatic complexes are defined to include volcanic and plutonic rocks that are considered to be coeval. The Rouen Intrusive complex combines the plutonic rocks from the Rouen Mountains and Rothschild Island on the basis of age and chemistry. Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Rothschild Island Cambridge University Press Antarctic The Antarctic Antarctic Peninsula Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Rouen ENVELOPE(-70.883,-70.883,-69.167,-69.167) Colbert ENVELOPE(-70.183,-70.183,-70.650,-70.650) Rothschild ENVELOPE(-72.500,-72.500,-69.417,-69.417) Rouen Mountains ENVELOPE(-70.883,-70.883,-69.166,-69.166) Rothschild Island ENVELOPE(-72.554,-72.554,-69.429,-69.429) Antarctic Science 9 2 209 220 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography McCarron, Joe J. A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Late Cretaceous–early Tertiary subduction-related fore-arc volcanic rocks are exposed in a north–south linear belt along the length of Alexander Island. The age and tectonic setting of these rocks is well understood; they are not considered to represent “normal” arc magmas but were generated in the fore-arc as a result of ridge subduction. Due to their distinct composition and mode of formation, they are no longer considered to be genetically related to the Antarctic Peninsula magmatic arc. They are therefore removed from the Antarctic Peninsula Volcanic Group and placed in a newly defined Alexander Island Volcanic Group. The group is made up of the Monteverdi, Staccato, Walton, Colbert, Elgar and Finlandia formations, which vary widely in lithology, facies and age. The Colbert and Elgar formations are subdivided into nine and three members respectively. Type localities, representative lithologies and age of each of the formations are discussed. The Staccato and Colbert Magmatic complexes are defined to include volcanic and plutonic rocks that are considered to be coeval. The Rouen Intrusive complex combines the plutonic rocks from the Rouen Mountains and Rothschild Island on the basis of age and chemistry. |
format |
Article in Journal/Newspaper |
author |
McCarron, Joe J. |
author_facet |
McCarron, Joe J. |
author_sort |
McCarron, Joe J. |
title |
A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
title_short |
A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
title_full |
A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
title_fullStr |
A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
title_full_unstemmed |
A unifying lithostratigraphy of late Cretaceous–early Tertiary fore-arc volcanic sequences on Alexander Island, Antarctica |
title_sort |
unifying lithostratigraphy of late cretaceous–early tertiary fore-arc volcanic sequences on alexander island, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1997 |
url |
http://dx.doi.org/10.1017/s0954102097000266 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102097000266 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(-70.883,-70.883,-69.167,-69.167) ENVELOPE(-70.183,-70.183,-70.650,-70.650) ENVELOPE(-72.500,-72.500,-69.417,-69.417) ENVELOPE(-70.883,-70.883,-69.166,-69.166) ENVELOPE(-72.554,-72.554,-69.429,-69.429) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Alexander Island Rouen Colbert Rothschild Rouen Mountains Rothschild Island |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Alexander Island Rouen Colbert Rothschild Rouen Mountains Rothschild Island |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Rothschild Island |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Rothschild Island |
op_source |
Antarctic Science volume 9, issue 2, page 209-220 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102097000266 |
container_title |
Antarctic Science |
container_volume |
9 |
container_issue |
2 |
container_start_page |
209 |
op_container_end_page |
220 |
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1792506915747528704 |