Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe
Paleotemperature reconstructions of the end-Cretaceous interval document local and global climate trends, some driven by greenhouse gas emissions from Deccan Traps volcanism and associated feedbacks. Here, we present a new clumped-isotope-based paleotemperature record derived from fossil bivalves fr...
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2022
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fttriple:oai:gotriple.eu:oai:doaj.org/article:034e5c704e7941e4996472a3d9b09de6 2023-05-15T15:05:45+02:00 Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe H. E. O'Hora S. V. Petersen J. Vellekoop M. M. Jones S. R. Scholz 2022-09-01 https://doi.org/10.5194/cp-18-1963-2022 https://cp.copernicus.org/articles/18/1963/2022/cp-18-1963-2022.pdf https://doaj.org/article/034e5c704e7941e4996472a3d9b09de6 en eng Copernicus Publications doi:10.5194/cp-18-1963-2022 1814-9324 1814-9332 https://cp.copernicus.org/articles/18/1963/2022/cp-18-1963-2022.pdf https://doaj.org/article/034e5c704e7941e4996472a3d9b09de6 undefined Climate of the Past, Vol 18, Pp 1963-1982 (2022) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.5194/cp-18-1963-2022 2023-01-22T19:12:08Z Paleotemperature reconstructions of the end-Cretaceous interval document local and global climate trends, some driven by greenhouse gas emissions from Deccan Traps volcanism and associated feedbacks. Here, we present a new clumped-isotope-based paleotemperature record derived from fossil bivalves from the Maastrichtian type region in southeastern Netherlands and northeastern Belgium. Clumped isotope data document a mean temperature of 20.4±3.8 ∘C, consistent with other Maastrichtian temperature estimates, and an average seawater δ18O value of 0.2±0.8 ‰ VSMOW for the region during the latest Cretaceous (67.1–66.0 Ma). A notable temperature increase at ∼66.4 Ma is interpreted to be a regional manifestation of the globally defined Late Maastrichtian Warming Event, linking Deccan Traps volcanic CO2 emissions to climate change in the Maastricht region. Fluctuating seawater δ18O values coinciding with temperature changes suggest alternating influences of warm, salty southern-sourced waters and cooler, fresher northern-sourced waters from the Arctic Ocean. This new paleotemperature record contributes to the understanding of regional and global climate response to large-scale volcanism and ocean circulation changes leading up to a catastrophic mass extinction. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Unknown Arctic Arctic Ocean Climate of the Past 18 9 1963 1982 |
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English |
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geo envir H. E. O'Hora S. V. Petersen J. Vellekoop M. M. Jones S. R. Scholz Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
topic_facet |
geo envir |
description |
Paleotemperature reconstructions of the end-Cretaceous interval document local and global climate trends, some driven by greenhouse gas emissions from Deccan Traps volcanism and associated feedbacks. Here, we present a new clumped-isotope-based paleotemperature record derived from fossil bivalves from the Maastrichtian type region in southeastern Netherlands and northeastern Belgium. Clumped isotope data document a mean temperature of 20.4±3.8 ∘C, consistent with other Maastrichtian temperature estimates, and an average seawater δ18O value of 0.2±0.8 ‰ VSMOW for the region during the latest Cretaceous (67.1–66.0 Ma). A notable temperature increase at ∼66.4 Ma is interpreted to be a regional manifestation of the globally defined Late Maastrichtian Warming Event, linking Deccan Traps volcanic CO2 emissions to climate change in the Maastricht region. Fluctuating seawater δ18O values coinciding with temperature changes suggest alternating influences of warm, salty southern-sourced waters and cooler, fresher northern-sourced waters from the Arctic Ocean. This new paleotemperature record contributes to the understanding of regional and global climate response to large-scale volcanism and ocean circulation changes leading up to a catastrophic mass extinction. |
format |
Article in Journal/Newspaper |
author |
H. E. O'Hora S. V. Petersen J. Vellekoop M. M. Jones S. R. Scholz |
author_facet |
H. E. O'Hora S. V. Petersen J. Vellekoop M. M. Jones S. R. Scholz |
author_sort |
H. E. O'Hora |
title |
Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
title_short |
Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
title_full |
Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
title_fullStr |
Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
title_full_unstemmed |
Clumped-isotope-derived climate trends leading up to the end-Cretaceous mass extinction in northwestern Europe |
title_sort |
clumped-isotope-derived climate trends leading up to the end-cretaceous mass extinction in northwestern europe |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/cp-18-1963-2022 https://cp.copernicus.org/articles/18/1963/2022/cp-18-1963-2022.pdf https://doaj.org/article/034e5c704e7941e4996472a3d9b09de6 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change |
genre_facet |
Arctic Arctic Ocean Climate change |
op_source |
Climate of the Past, Vol 18, Pp 1963-1982 (2022) |
op_relation |
doi:10.5194/cp-18-1963-2022 1814-9324 1814-9332 https://cp.copernicus.org/articles/18/1963/2022/cp-18-1963-2022.pdf https://doaj.org/article/034e5c704e7941e4996472a3d9b09de6 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-18-1963-2022 |
container_title |
Climate of the Past |
container_volume |
18 |
container_issue |
9 |
container_start_page |
1963 |
op_container_end_page |
1982 |
_version_ |
1766337396802060288 |