Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation
New exposures of fossiliferous sedimentary rocks at Cape Framnes, Jason Peninsula (65°57′S, 60°33′W) are assigned to the Middle–Late Jurassic Latady Formation of the south-eastern Antarctic Peninsula region. A sequence of fine to coarse-grained sandstones of unknown thickness has yielded a molluscan...
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Cambridge University Press
1997
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Online Access: | http://nora.nerc.ac.uk/id/eprint/514688/ https://doi.org/10.1017/S0954102097000564 |
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ftnerc:oai:nora.nerc.ac.uk:514688 2023-05-15T13:49:33+02:00 Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation Riley, T.R. Crame, J.A. Thomson, M.R.A. Cantrill, D.J. 1997-12 http://nora.nerc.ac.uk/id/eprint/514688/ https://doi.org/10.1017/S0954102097000564 unknown Cambridge University Press Riley, T.R. orcid:0000-0002-3333-5021 Crame, J.A. orcid:0000-0002-5027-9965 Thomson, M.R.A.; Cantrill, D.J. 1997 Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation. Antarctic Science, 9 (4). 434-442. https://doi.org/10.1017/S0954102097000564 <https://doi.org/10.1017/S0954102097000564> Publication - Article PeerReviewed 1997 ftnerc https://doi.org/10.1017/S0954102097000564 2023-02-04T19:43:37Z New exposures of fossiliferous sedimentary rocks at Cape Framnes, Jason Peninsula (65°57′S, 60°33′W) are assigned to the Middle–Late Jurassic Latady Formation of the south-eastern Antarctic Peninsula region. A sequence of fine to coarse-grained sandstones of unknown thickness has yielded a molluscan and plant macrofossil assemblage rich in the following elements: perisphinctid ammonites, belemnopseid belemnites, oxytomid, trigoniid and astartid bivalves, and bennettitalean fronds and fructifications. The overwhelming age affinities are with the Kimmeridgian–early Tithonian part of the Latady Formation, as exposed on the Orville and Lassiter coasts. The Cape Framnes sedimentary rocks help to constrain the age of a major sequence of acid volcanic rocks on Jason Peninsula, and show that the Latady Basin was geographically much more extensive than recognized previously. It was the principal depositional centre of Middle–Late Jurassic sedimentation in the Antarctic Peninsula back-arc region and in areal extent may have rivalled the essentially Cretaceous Larsen Basin. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Graham Land Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Graham Land ENVELOPE(-63.500,-63.500,-66.000,-66.000) Orville ENVELOPE(-63.000,-63.000,-75.167,-75.167) Framnes ENVELOPE(-60.750,-60.750,-65.983,-65.983) Latady ENVELOPE(-65.833,-65.833,-75.500,-75.500) Lassiter ENVELOPE(-62.000,-62.000,-73.750,-73.750) Larsen Basin ENVELOPE(-60.000,-60.000,-68.000,-68.000) Jason Peninsula ENVELOPE(-61.667,-61.667,-66.250,-66.250) Cape Framnes ENVELOPE(-60.583,-60.583,-65.967,-65.967) Antarctic Science 9 4 434 442 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
New exposures of fossiliferous sedimentary rocks at Cape Framnes, Jason Peninsula (65°57′S, 60°33′W) are assigned to the Middle–Late Jurassic Latady Formation of the south-eastern Antarctic Peninsula region. A sequence of fine to coarse-grained sandstones of unknown thickness has yielded a molluscan and plant macrofossil assemblage rich in the following elements: perisphinctid ammonites, belemnopseid belemnites, oxytomid, trigoniid and astartid bivalves, and bennettitalean fronds and fructifications. The overwhelming age affinities are with the Kimmeridgian–early Tithonian part of the Latady Formation, as exposed on the Orville and Lassiter coasts. The Cape Framnes sedimentary rocks help to constrain the age of a major sequence of acid volcanic rocks on Jason Peninsula, and show that the Latady Basin was geographically much more extensive than recognized previously. It was the principal depositional centre of Middle–Late Jurassic sedimentation in the Antarctic Peninsula back-arc region and in areal extent may have rivalled the essentially Cretaceous Larsen Basin. |
format |
Article in Journal/Newspaper |
author |
Riley, T.R. Crame, J.A. Thomson, M.R.A. Cantrill, D.J. |
spellingShingle |
Riley, T.R. Crame, J.A. Thomson, M.R.A. Cantrill, D.J. Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
author_facet |
Riley, T.R. Crame, J.A. Thomson, M.R.A. Cantrill, D.J. |
author_sort |
Riley, T.R. |
title |
Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
title_short |
Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
title_full |
Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
title_fullStr |
Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
title_full_unstemmed |
Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation |
title_sort |
late jurassic (kimmeridgian-tithonian) macrofossil assemblage from jason peninsula, graham land: evidence for a significant northward extension of the latady formation |
publisher |
Cambridge University Press |
publishDate |
1997 |
url |
http://nora.nerc.ac.uk/id/eprint/514688/ https://doi.org/10.1017/S0954102097000564 |
long_lat |
ENVELOPE(-63.500,-63.500,-66.000,-66.000) ENVELOPE(-63.000,-63.000,-75.167,-75.167) ENVELOPE(-60.750,-60.750,-65.983,-65.983) ENVELOPE(-65.833,-65.833,-75.500,-75.500) ENVELOPE(-62.000,-62.000,-73.750,-73.750) ENVELOPE(-60.000,-60.000,-68.000,-68.000) ENVELOPE(-61.667,-61.667,-66.250,-66.250) ENVELOPE(-60.583,-60.583,-65.967,-65.967) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Graham Land Orville Framnes Latady Lassiter Larsen Basin Jason Peninsula Cape Framnes |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Graham Land Orville Framnes Latady Lassiter Larsen Basin Jason Peninsula Cape Framnes |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Graham Land |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Graham Land |
op_relation |
Riley, T.R. orcid:0000-0002-3333-5021 Crame, J.A. orcid:0000-0002-5027-9965 Thomson, M.R.A.; Cantrill, D.J. 1997 Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation. Antarctic Science, 9 (4). 434-442. https://doi.org/10.1017/S0954102097000564 <https://doi.org/10.1017/S0954102097000564> |
op_doi |
https://doi.org/10.1017/S0954102097000564 |
container_title |
Antarctic Science |
container_volume |
9 |
container_issue |
4 |
container_start_page |
434 |
op_container_end_page |
442 |
_version_ |
1766251560073953280 |