Tectonic forcings of Maastrichtian ocean-climate evolution
A global compilation of deep-sea isotopic records suggests that Maastrichtian ocean-climate evolution tvas tectonically driven. During the early Maastrichtian the Atlantic intermediate-deep ocean was isolated from the Pacific, Indian, and Southern Oceans; deep water formed in the high-latitude North...
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American Geophysical Union
1999
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:142964 2023-05-15T17:33:11+02:00 Tectonic forcings of Maastrichtian ocean-climate evolution Frank, T. D. Arthur, M. A. M. L. Delaney 1999-01-01 https://espace.library.uq.edu.au/view/UQ:142964 eng eng American Geophysical Union doi:10.1029/1998PA900017 issn:0883-8305 Geosciences Multidisciplinary Oceanography Paleontology Paleocene Magnetic Stratigraphy Cretaceous-tertiary Boundary Southern High-latitudes Project Leg 74 Planktonic-foraminifera Isotopic Evidence Atlantic Ocean Sea-water Circulation Paleotemperature 260104 Sedimentology C1 780104 Earth sciences Journal Article 1999 ftunivqespace https://doi.org/10.1029/1998PA900017 2020-11-09T23:32:25Z A global compilation of deep-sea isotopic records suggests that Maastrichtian ocean-climate evolution tvas tectonically driven. During the early Maastrichtian the Atlantic intermediate-deep ocean was isolated from the Pacific, Indian, and Southern Oceans; deep water formed in the high-latitude North Atlantic and North Pacific. At the early/late Maastrichtian boundary a major reorganization of oceanic circulation patterns occurred, resulting in the development of a thermohaline circulation system similar to that of the modem oceans. A combination of isotopic and plate kinematic data suggests that this event was triggered by the final breaching of tectonic sills in the South Atlantic and the initiation of north-south flow of intermediate and deep water in the Atlantic. The onset of Laramide tectonism during the mid Maastrichtian led to the concurrent draining of major epicontinental seaways. Together, these events caused cooling, increased latitudinal temperature gradients, increased ventilation of the deep ocean, and affected a range of marine biota. Article in Journal/Newspaper North Atlantic Planktonic foraminifera The University of Queensland: UQ eSpace Indian Pacific Paleoceanography 14 2 103 117 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Geosciences Multidisciplinary Oceanography Paleontology Paleocene Magnetic Stratigraphy Cretaceous-tertiary Boundary Southern High-latitudes Project Leg 74 Planktonic-foraminifera Isotopic Evidence Atlantic Ocean Sea-water Circulation Paleotemperature 260104 Sedimentology C1 780104 Earth sciences |
spellingShingle |
Geosciences Multidisciplinary Oceanography Paleontology Paleocene Magnetic Stratigraphy Cretaceous-tertiary Boundary Southern High-latitudes Project Leg 74 Planktonic-foraminifera Isotopic Evidence Atlantic Ocean Sea-water Circulation Paleotemperature 260104 Sedimentology C1 780104 Earth sciences Frank, T. D. Arthur, M. A. Tectonic forcings of Maastrichtian ocean-climate evolution |
topic_facet |
Geosciences Multidisciplinary Oceanography Paleontology Paleocene Magnetic Stratigraphy Cretaceous-tertiary Boundary Southern High-latitudes Project Leg 74 Planktonic-foraminifera Isotopic Evidence Atlantic Ocean Sea-water Circulation Paleotemperature 260104 Sedimentology C1 780104 Earth sciences |
description |
A global compilation of deep-sea isotopic records suggests that Maastrichtian ocean-climate evolution tvas tectonically driven. During the early Maastrichtian the Atlantic intermediate-deep ocean was isolated from the Pacific, Indian, and Southern Oceans; deep water formed in the high-latitude North Atlantic and North Pacific. At the early/late Maastrichtian boundary a major reorganization of oceanic circulation patterns occurred, resulting in the development of a thermohaline circulation system similar to that of the modem oceans. A combination of isotopic and plate kinematic data suggests that this event was triggered by the final breaching of tectonic sills in the South Atlantic and the initiation of north-south flow of intermediate and deep water in the Atlantic. The onset of Laramide tectonism during the mid Maastrichtian led to the concurrent draining of major epicontinental seaways. Together, these events caused cooling, increased latitudinal temperature gradients, increased ventilation of the deep ocean, and affected a range of marine biota. |
author2 |
M. L. Delaney |
format |
Article in Journal/Newspaper |
author |
Frank, T. D. Arthur, M. A. |
author_facet |
Frank, T. D. Arthur, M. A. |
author_sort |
Frank, T. D. |
title |
Tectonic forcings of Maastrichtian ocean-climate evolution |
title_short |
Tectonic forcings of Maastrichtian ocean-climate evolution |
title_full |
Tectonic forcings of Maastrichtian ocean-climate evolution |
title_fullStr |
Tectonic forcings of Maastrichtian ocean-climate evolution |
title_full_unstemmed |
Tectonic forcings of Maastrichtian ocean-climate evolution |
title_sort |
tectonic forcings of maastrichtian ocean-climate evolution |
publisher |
American Geophysical Union |
publishDate |
1999 |
url |
https://espace.library.uq.edu.au/view/UQ:142964 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_relation |
doi:10.1029/1998PA900017 issn:0883-8305 |
op_doi |
https://doi.org/10.1029/1998PA900017 |
container_title |
Paleoceanography |
container_volume |
14 |
container_issue |
2 |
container_start_page |
103 |
op_container_end_page |
117 |
_version_ |
1766131605163737088 |