Cretaceous stratigraphy of Antarctica and its global significance
The Cretaceous period is particularly well represented by a thick sequence of clastic sedimentary rocks exposed in the Antarctic Peninsula region of western Antarctica. This was an active margin throughout the Late Mesozoic and in total some 7km+ of Cretaceous sedimentary rocks accumulated in a seri...
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ftnerc:oai:nora.nerc.ac.uk:536049 2024-02-11T09:55:02+01:00 Cretaceous stratigraphy of Antarctica and its global significance Crame, J. Alistair Francis, Jane E. 2024-11-01 http://nora.nerc.ac.uk/id/eprint/536049/ https://www.lyellcollection.org/doi/10.1144/SP545-2023-153 unknown The Geological Society of London Crame, J. Alistair orcid:0000-0002-5027-9965 Francis, Jane E. 2024 Cretaceous stratigraphy of Antarctica and its global significance. Geological Society, London, Special Publications, 545. https://doi.org/10.1144/SP545-2023-153 <https://doi.org/10.1144/SP545-2023-153> Publication - Article PeerReviewed 2024 ftnerc https://doi.org/10.1144/SP545-2023-153 2024-01-12T00:03:13Z The Cretaceous period is particularly well represented by a thick sequence of clastic sedimentary rocks exposed in the Antarctic Peninsula region of western Antarctica. This was an active margin throughout the Late Mesozoic and in total some 7km+ of Cretaceous sedimentary rocks accumulated in a series of fore-, intra-, and back-arc basins. The Fossil Bluff Group of eastern Alexander Island can be traced from the Jurassic - Cretaceous boundary into the Upper Albian and represents a broad-scale shallowing-upwards sequence from deep marine to a prominent Upper Albian fluvial interval in which high density forests developed at a palaeolatitude of 75°S. The Cretaceous sequence exposed in the James Ross Island group continues right through the Upper Cretaceous to the K–Pg boundary. The Campanian - Maastrichtian succession in particular is over 2km in total thickness and richly fossiliferous. The improved Cretaceous stratigraphy of Antarctica is an invaluable terrestrial record of climatic change at a high palaeolatitude. This includes a gradual increase in temperature to the Cretaceous Thermal Maximum, and then a decline to the K–Pg boundary. There may be no simple link between these palaeotemperature changes and Cretaceous patterns of biotic radiation and extinction. Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island James Ross Island group Ross Island Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Ross Island Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Fossil Bluff ENVELOPE(-68.274,-68.274,-71.332,-71.332) Geological Society, London, Special Publications 545 1 |
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Natural Environment Research Council: NERC Open Research Archive |
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The Cretaceous period is particularly well represented by a thick sequence of clastic sedimentary rocks exposed in the Antarctic Peninsula region of western Antarctica. This was an active margin throughout the Late Mesozoic and in total some 7km+ of Cretaceous sedimentary rocks accumulated in a series of fore-, intra-, and back-arc basins. The Fossil Bluff Group of eastern Alexander Island can be traced from the Jurassic - Cretaceous boundary into the Upper Albian and represents a broad-scale shallowing-upwards sequence from deep marine to a prominent Upper Albian fluvial interval in which high density forests developed at a palaeolatitude of 75°S. The Cretaceous sequence exposed in the James Ross Island group continues right through the Upper Cretaceous to the K–Pg boundary. The Campanian - Maastrichtian succession in particular is over 2km in total thickness and richly fossiliferous. The improved Cretaceous stratigraphy of Antarctica is an invaluable terrestrial record of climatic change at a high palaeolatitude. This includes a gradual increase in temperature to the Cretaceous Thermal Maximum, and then a decline to the K–Pg boundary. There may be no simple link between these palaeotemperature changes and Cretaceous patterns of biotic radiation and extinction. |
format |
Article in Journal/Newspaper |
author |
Crame, J. Alistair Francis, Jane E. |
spellingShingle |
Crame, J. Alistair Francis, Jane E. Cretaceous stratigraphy of Antarctica and its global significance |
author_facet |
Crame, J. Alistair Francis, Jane E. |
author_sort |
Crame, J. Alistair |
title |
Cretaceous stratigraphy of Antarctica and its global significance |
title_short |
Cretaceous stratigraphy of Antarctica and its global significance |
title_full |
Cretaceous stratigraphy of Antarctica and its global significance |
title_fullStr |
Cretaceous stratigraphy of Antarctica and its global significance |
title_full_unstemmed |
Cretaceous stratigraphy of Antarctica and its global significance |
title_sort |
cretaceous stratigraphy of antarctica and its global significance |
publisher |
The Geological Society of London |
publishDate |
2024 |
url |
http://nora.nerc.ac.uk/id/eprint/536049/ https://www.lyellcollection.org/doi/10.1144/SP545-2023-153 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(-68.274,-68.274,-71.332,-71.332) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Ross Island Alexander Island Fossil Bluff |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Ross Island Alexander Island Fossil Bluff |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island James Ross Island group Ross Island |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island James Ross Island group Ross Island |
op_relation |
Crame, J. Alistair orcid:0000-0002-5027-9965 Francis, Jane E. 2024 Cretaceous stratigraphy of Antarctica and its global significance. Geological Society, London, Special Publications, 545. https://doi.org/10.1144/SP545-2023-153 <https://doi.org/10.1144/SP545-2023-153> |
op_doi |
https://doi.org/10.1144/SP545-2023-153 |
container_title |
Geological Society, London, Special Publications |
container_volume |
545 |
container_issue |
1 |
_version_ |
1790593585214652416 |