Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico
The Eocene-Oligocene transition (EOT; ca. 33-34 Ma) was a time of pronounced climatic change, marked by the establishment of continental-scale Antarctic ice sheets. The timing and extent of temperature change associated with the EOT is controversial. Here we present multiproxy EOT climate records (s...
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2012
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ftunivgent:oai:archive.ugent.be:3098187 2023-10-01T03:51:53+02:00 Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico Wade, Bridget S Houben, Alexander JP Quaijtaal, Willemijn Schouten, Stefan Rosenthal, Yair Miller, Kenneth G Katz, Miriam E Wright, James D Brinkhuis, Henk 2012 application/pdf https://biblio.ugent.be/publication/3098187 http://hdl.handle.net/1854/LU-3098187 https://doi.org/10.1130/G32577.1 https://biblio.ugent.be/publication/3098187/file/3106134 eng eng https://biblio.ugent.be/publication/3098187 http://hdl.handle.net/1854/LU-3098187 http://dx.doi.org/10.1130/G32577.1 https://biblio.ugent.be/publication/3098187/file/3106134 No license (in copyright) info:eu-repo/semantics/restrictedAccess GEOLOGY ISSN: 0091-7613 Earth and Environmental Sciences CLIMATE TRANSITION ISOPRENOID TETRAETHER LIPIDS TEMPERATURE ICE BOUNDARY FORAMINIFERA GLACIATION ISOTOPES ALABAMA NORTH journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunivgent https://doi.org/10.1130/G32577.1 2023-09-06T22:32:44Z The Eocene-Oligocene transition (EOT; ca. 33-34 Ma) was a time of pronounced climatic change, marked by the establishment of continental-scale Antarctic ice sheets. The timing and extent of temperature change associated with the EOT is controversial. Here we present multiproxy EOT climate records (similar to 15-34 k.y. resolution) from St. Stephens Quarry, Alabama, USA, derived from foraminiferal Mg/Ca, delta O-18, and TEX86. We constrain sea-surface temperatures (SSTs) in the latest Eocene and early Oligocene and address the issue of climatic cooling during the EOT. Paleotemperatures derived from planktic foraminifera Mg/Ca and TEX86 are remarkably consistent and indicate late Eocene subtropical SSTs of >28 degrees C. There was substantial and accelerated cooling of SSTs (3-4 degrees C) through the latest Eocene "precursor" delta O-18 shift (EOT-1), prior to Oligocene Isotope-1 (Oi-1). Our multispecies planktic foraminiferal delta O-18 records diverge at the E/O boundary (33.7 Ma), signifying enhanced seasonality in the earliest Oligocene in the Gulf of Mexico. Article in Journal/Newspaper Antarc* Antarctic Ghent University Academic Bibliography Antarctic Alabama Geology 40 2 159 162 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences CLIMATE TRANSITION ISOPRENOID TETRAETHER LIPIDS TEMPERATURE ICE BOUNDARY FORAMINIFERA GLACIATION ISOTOPES ALABAMA NORTH |
spellingShingle |
Earth and Environmental Sciences CLIMATE TRANSITION ISOPRENOID TETRAETHER LIPIDS TEMPERATURE ICE BOUNDARY FORAMINIFERA GLACIATION ISOTOPES ALABAMA NORTH Wade, Bridget S Houben, Alexander JP Quaijtaal, Willemijn Schouten, Stefan Rosenthal, Yair Miller, Kenneth G Katz, Miriam E Wright, James D Brinkhuis, Henk Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
topic_facet |
Earth and Environmental Sciences CLIMATE TRANSITION ISOPRENOID TETRAETHER LIPIDS TEMPERATURE ICE BOUNDARY FORAMINIFERA GLACIATION ISOTOPES ALABAMA NORTH |
description |
The Eocene-Oligocene transition (EOT; ca. 33-34 Ma) was a time of pronounced climatic change, marked by the establishment of continental-scale Antarctic ice sheets. The timing and extent of temperature change associated with the EOT is controversial. Here we present multiproxy EOT climate records (similar to 15-34 k.y. resolution) from St. Stephens Quarry, Alabama, USA, derived from foraminiferal Mg/Ca, delta O-18, and TEX86. We constrain sea-surface temperatures (SSTs) in the latest Eocene and early Oligocene and address the issue of climatic cooling during the EOT. Paleotemperatures derived from planktic foraminifera Mg/Ca and TEX86 are remarkably consistent and indicate late Eocene subtropical SSTs of >28 degrees C. There was substantial and accelerated cooling of SSTs (3-4 degrees C) through the latest Eocene "precursor" delta O-18 shift (EOT-1), prior to Oligocene Isotope-1 (Oi-1). Our multispecies planktic foraminiferal delta O-18 records diverge at the E/O boundary (33.7 Ma), signifying enhanced seasonality in the earliest Oligocene in the Gulf of Mexico. |
format |
Article in Journal/Newspaper |
author |
Wade, Bridget S Houben, Alexander JP Quaijtaal, Willemijn Schouten, Stefan Rosenthal, Yair Miller, Kenneth G Katz, Miriam E Wright, James D Brinkhuis, Henk |
author_facet |
Wade, Bridget S Houben, Alexander JP Quaijtaal, Willemijn Schouten, Stefan Rosenthal, Yair Miller, Kenneth G Katz, Miriam E Wright, James D Brinkhuis, Henk |
author_sort |
Wade, Bridget S |
title |
Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
title_short |
Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
title_full |
Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
title_fullStr |
Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
title_full_unstemmed |
Multiproxy record of abrupt sea-surface cooling across the Eocene-Oligocene transition in the Gulf of Mexico |
title_sort |
multiproxy record of abrupt sea-surface cooling across the eocene-oligocene transition in the gulf of mexico |
publishDate |
2012 |
url |
https://biblio.ugent.be/publication/3098187 http://hdl.handle.net/1854/LU-3098187 https://doi.org/10.1130/G32577.1 https://biblio.ugent.be/publication/3098187/file/3106134 |
geographic |
Antarctic Alabama |
geographic_facet |
Antarctic Alabama |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
GEOLOGY ISSN: 0091-7613 |
op_relation |
https://biblio.ugent.be/publication/3098187 http://hdl.handle.net/1854/LU-3098187 http://dx.doi.org/10.1130/G32577.1 https://biblio.ugent.be/publication/3098187/file/3106134 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1130/G32577.1 |
container_title |
Geology |
container_volume |
40 |
container_issue |
2 |
container_start_page |
159 |
op_container_end_page |
162 |
_version_ |
1778517235773472768 |