Pliocene climate and seasonality in North Atlantic shelf seas
This paper reviews North Atlantic shelf seas palaeoclimate during the interval 4-3 Ma, prior to and incorporating the ‘mid Pliocene warm period’ (ca 3.29-2.97 Ma). Fossil assemblages and stable isotope data demonstrate northwards extension of subtropical faunas along the coast of the Carolinas-Virgi...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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Online Access: | http://rsta.royalsocietypublishing.org/content/367/1886/85 http://hdl.handle.net/2381/8082 https://doi.org/10.1098/rsta.2008.0224 |
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ftleicester:oai:lra.le.ac.uk:2381/8082 2023-05-15T17:28:43+02:00 Pliocene climate and seasonality in North Atlantic shelf seas Williams, Mark Haywood, Alan M. Harper, Elizabeth M. Johnson, Andrew L.A. Knowles, Tanya Leng, Melanie J. Lunt, Daniel J. Okamura, Beth Taylor, Paul D. Zalasiewicz, Jan 2010-06-21T13:54:33Z http://rsta.royalsocietypublishing.org/content/367/1886/85 http://hdl.handle.net/2381/8082 https://doi.org/10.1098/rsta.2008.0224 en eng The Royal Society Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009, 367 (1886), pp. 85-108 1364-503X http://rsta.royalsocietypublishing.org/content/367/1886/85 http://hdl.handle.net/2381/8082 doi:10.1098/rsta.2008.0224 This is the author’s final draft of the paper published as Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009, 367 (1886), pp. 85-108. The final published version is available at http://rsta.royalsocietypublishing.org/content/367/1886/85, Doi:10.1098/rsta.2008.0224. Pliocene shelf seas bryozoans bivalves seasonality Article 2010 ftleicester https://doi.org/10.1098/rsta.2008.0224 2019-03-22T20:13:16Z This paper reviews North Atlantic shelf seas palaeoclimate during the interval 4-3 Ma, prior to and incorporating the ‘mid Pliocene warm period’ (ca 3.29-2.97 Ma). Fossil assemblages and stable isotope data demonstrate northwards extension of subtropical faunas along the coast of the Carolinas-Virginia (Yorktown and Duplin formations) relative to the present day, suggesting a more vigorous Florida Current, with reduced seasonality and warm water extending north of Cape Hatteras(reconstructed annual range for Virginia 12-30°C). This interpretation supports conceptual models of increased meridional heat transport for the Pliocene. Sea temperatures for Florida (Lower Pinecrest Beds) were similar to or slightly cooler (summers 25-27°C) than today, and were probably influenced by seasonal upwelling of cold deep water. Reduced seasonality is also apparent in the Coralline Crag Formation of the southern North Sea, with ostracods suggesting winter sea temperatures of 10°C (modern 4°C). However, estimates from Pliocene bivalves (3.6- 16.6°C) are similar to or cooler than the present day. This ‘mixed’ signal is problematic given warmer seas in the Carolinas-Virginia, and climate model and oceanographic data that show warmer seas in the ‘mid Pliocene’ eastern North Atlantic. This may be because the Coralline Crag Formation was deposited prior to peak ‘mid Pliocene’ warmth. Article in Journal/Newspaper North Atlantic University of Leicester: Leicester Research Archive (LRA) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 367 1886 85 108 |
institution |
Open Polar |
collection |
University of Leicester: Leicester Research Archive (LRA) |
op_collection_id |
ftleicester |
language |
English |
topic |
Pliocene shelf seas bryozoans bivalves seasonality |
spellingShingle |
Pliocene shelf seas bryozoans bivalves seasonality Williams, Mark Haywood, Alan M. Harper, Elizabeth M. Johnson, Andrew L.A. Knowles, Tanya Leng, Melanie J. Lunt, Daniel J. Okamura, Beth Taylor, Paul D. Zalasiewicz, Jan Pliocene climate and seasonality in North Atlantic shelf seas |
topic_facet |
Pliocene shelf seas bryozoans bivalves seasonality |
description |
This paper reviews North Atlantic shelf seas palaeoclimate during the interval 4-3 Ma, prior to and incorporating the ‘mid Pliocene warm period’ (ca 3.29-2.97 Ma). Fossil assemblages and stable isotope data demonstrate northwards extension of subtropical faunas along the coast of the Carolinas-Virginia (Yorktown and Duplin formations) relative to the present day, suggesting a more vigorous Florida Current, with reduced seasonality and warm water extending north of Cape Hatteras(reconstructed annual range for Virginia 12-30°C). This interpretation supports conceptual models of increased meridional heat transport for the Pliocene. Sea temperatures for Florida (Lower Pinecrest Beds) were similar to or slightly cooler (summers 25-27°C) than today, and were probably influenced by seasonal upwelling of cold deep water. Reduced seasonality is also apparent in the Coralline Crag Formation of the southern North Sea, with ostracods suggesting winter sea temperatures of 10°C (modern 4°C). However, estimates from Pliocene bivalves (3.6- 16.6°C) are similar to or cooler than the present day. This ‘mixed’ signal is problematic given warmer seas in the Carolinas-Virginia, and climate model and oceanographic data that show warmer seas in the ‘mid Pliocene’ eastern North Atlantic. This may be because the Coralline Crag Formation was deposited prior to peak ‘mid Pliocene’ warmth. |
format |
Article in Journal/Newspaper |
author |
Williams, Mark Haywood, Alan M. Harper, Elizabeth M. Johnson, Andrew L.A. Knowles, Tanya Leng, Melanie J. Lunt, Daniel J. Okamura, Beth Taylor, Paul D. Zalasiewicz, Jan |
author_facet |
Williams, Mark Haywood, Alan M. Harper, Elizabeth M. Johnson, Andrew L.A. Knowles, Tanya Leng, Melanie J. Lunt, Daniel J. Okamura, Beth Taylor, Paul D. Zalasiewicz, Jan |
author_sort |
Williams, Mark |
title |
Pliocene climate and seasonality in North Atlantic shelf seas |
title_short |
Pliocene climate and seasonality in North Atlantic shelf seas |
title_full |
Pliocene climate and seasonality in North Atlantic shelf seas |
title_fullStr |
Pliocene climate and seasonality in North Atlantic shelf seas |
title_full_unstemmed |
Pliocene climate and seasonality in North Atlantic shelf seas |
title_sort |
pliocene climate and seasonality in north atlantic shelf seas |
publisher |
The Royal Society |
publishDate |
2010 |
url |
http://rsta.royalsocietypublishing.org/content/367/1886/85 http://hdl.handle.net/2381/8082 https://doi.org/10.1098/rsta.2008.0224 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009, 367 (1886), pp. 85-108 1364-503X http://rsta.royalsocietypublishing.org/content/367/1886/85 http://hdl.handle.net/2381/8082 doi:10.1098/rsta.2008.0224 |
op_rights |
This is the author’s final draft of the paper published as Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009, 367 (1886), pp. 85-108. The final published version is available at http://rsta.royalsocietypublishing.org/content/367/1886/85, Doi:10.1098/rsta.2008.0224. |
op_doi |
https://doi.org/10.1098/rsta.2008.0224 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
367 |
container_issue |
1886 |
container_start_page |
85 |
op_container_end_page |
108 |
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1766121572857282560 |