Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes
Two distinct phases of island-are evolution are recognized in late Mesozoic sedimentary rocks of the northern Antarctic Peninsula. During late Jurassic (Kimmeridgian-Tithonian) times, alternating radiolaria-rich mudstones and ash-fall tuffs were deposited under shallow marine euxinic conditions in a...
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Geological Society of London
1982
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Online Access: | http://nora.nerc.ac.uk/id/eprint/524361/ https://doi.org/10.1144/gsjgs.139.6.0721 |
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ftnerc:oai:nora.nerc.ac.uk:524361 2023-05-15T13:41:43+02:00 Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes Farquharson, G.W. 1982 http://nora.nerc.ac.uk/id/eprint/524361/ https://doi.org/10.1144/gsjgs.139.6.0721 unknown Geological Society of London Farquharson, G.W. 1982 Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes. Journal of the Geological Society, 139 (6). 721-727. https://doi.org/10.1144/gsjgs.139.6.0721 <https://doi.org/10.1144/gsjgs.139.6.0721> Earth Sciences Publication - Article PeerReviewed 1982 ftnerc https://doi.org/10.1144/gsjgs.139.6.0721 2023-02-04T19:48:50Z Two distinct phases of island-are evolution are recognized in late Mesozoic sedimentary rocks of the northern Antarctic Peninsula. During late Jurassic (Kimmeridgian-Tithonian) times, alternating radiolaria-rich mudstones and ash-fall tuffs were deposited under shallow marine euxinic conditions in association with restricted volcanic centres. The name Nordenskjöld Formation is proposed for this lithostratigraphic unit. Subsequently, during the early Cretaceous, a major episode of volcanism and uplift led to the construction of an emergent are-terrane. Simultaneous development of a retro-arc basin resulted in the accumulation of coarse volcaniclastic detritus along the eastern side of the arc. Retro-are sedimentation and intermittent volcanism continued into the late Cretaceous and early Tertiary. Although the pattern of sedimentation in the northern Antarctic Peninsula is broadly comparable to that of the southern Andes, an active marginal basin has not been recognized in the former area. Interbedded mudstones and tuffs, identical to those of the Nordenskjöld Formation, were deposited in the southern Andes and South Georgia during the late Jurassic - early Cretaceous. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Nordenskjöld ENVELOPE(-60.583,-60.583,-64.667,-64.667) Journal of the Geological Society 139 6 721 727 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Farquharson, G.W. Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
topic_facet |
Earth Sciences |
description |
Two distinct phases of island-are evolution are recognized in late Mesozoic sedimentary rocks of the northern Antarctic Peninsula. During late Jurassic (Kimmeridgian-Tithonian) times, alternating radiolaria-rich mudstones and ash-fall tuffs were deposited under shallow marine euxinic conditions in association with restricted volcanic centres. The name Nordenskjöld Formation is proposed for this lithostratigraphic unit. Subsequently, during the early Cretaceous, a major episode of volcanism and uplift led to the construction of an emergent are-terrane. Simultaneous development of a retro-arc basin resulted in the accumulation of coarse volcaniclastic detritus along the eastern side of the arc. Retro-are sedimentation and intermittent volcanism continued into the late Cretaceous and early Tertiary. Although the pattern of sedimentation in the northern Antarctic Peninsula is broadly comparable to that of the southern Andes, an active marginal basin has not been recognized in the former area. Interbedded mudstones and tuffs, identical to those of the Nordenskjöld Formation, were deposited in the southern Andes and South Georgia during the late Jurassic - early Cretaceous. |
format |
Article in Journal/Newspaper |
author |
Farquharson, G.W. |
author_facet |
Farquharson, G.W. |
author_sort |
Farquharson, G.W. |
title |
Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
title_short |
Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
title_full |
Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
title_fullStr |
Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
title_full_unstemmed |
Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes |
title_sort |
late mesozoic sedimentation in the northern antarctic peninsula and its relationship to the southern andes |
publisher |
Geological Society of London |
publishDate |
1982 |
url |
http://nora.nerc.ac.uk/id/eprint/524361/ https://doi.org/10.1144/gsjgs.139.6.0721 |
long_lat |
ENVELOPE(-60.583,-60.583,-64.667,-64.667) |
geographic |
Antarctic Antarctic Peninsula Nordenskjöld |
geographic_facet |
Antarctic Antarctic Peninsula Nordenskjöld |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
Farquharson, G.W. 1982 Late Mesozoic sedimentation in the northern Antarctic Peninsula and its relationship to the southern Andes. Journal of the Geological Society, 139 (6). 721-727. https://doi.org/10.1144/gsjgs.139.6.0721 <https://doi.org/10.1144/gsjgs.139.6.0721> |
op_doi |
https://doi.org/10.1144/gsjgs.139.6.0721 |
container_title |
Journal of the Geological Society |
container_volume |
139 |
container_issue |
6 |
container_start_page |
721 |
op_container_end_page |
727 |
_version_ |
1766155473388568576 |