Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean
Paleomagnetic polarity changes have been detected in nine deep-sea sedimentary cores (from the Pacific-Antarctic Basin) in which an extinction horizon of a radiolarian assemblage was previously independently determined. The depths of the polarity change 0.7 million years ago and the faunal boundary...
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American Association for the Advancement of Science (AAAS)
1967
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Online Access: | http://dx.doi.org/10.1126/science.156.3778.1083 https://www.science.org/doi/pdf/10.1126/science.156.3778.1083 |
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craaas:10.1126/science.156.3778.1083 2024-06-09T07:38:39+00:00 Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean Watkins, N. D. Goodell, H. G. 1967 http://dx.doi.org/10.1126/science.156.3778.1083 https://www.science.org/doi/pdf/10.1126/science.156.3778.1083 en eng American Association for the Advancement of Science (AAAS) Science volume 156, issue 3778, page 1083-1087 ISSN 0036-8075 1095-9203 journal-article 1967 craaas https://doi.org/10.1126/science.156.3778.1083 2024-05-16T12:55:36Z Paleomagnetic polarity changes have been detected in nine deep-sea sedimentary cores (from the Pacific-Antarctic Basin) in which an extinction horizon of a radiolarian assemblage was previously independently determined. The depths of the polarity change 0.7 million years ago and the faunal boundary are closely correlated, confirming that the faunal extinction was locally virtually synchronous. Although the reason for the faunal extinction is unknown. the possibility of causal relationships between faunal extinction and factors directly involved with sedimentation rate, sedimentation rate variation, and sediment type appears to be excluded. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean AAAS Resource Center (American Association for the Advancement of Science) Antarctic Southern Ocean Pacific Science 156 3778 1083 1087 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Paleomagnetic polarity changes have been detected in nine deep-sea sedimentary cores (from the Pacific-Antarctic Basin) in which an extinction horizon of a radiolarian assemblage was previously independently determined. The depths of the polarity change 0.7 million years ago and the faunal boundary are closely correlated, confirming that the faunal extinction was locally virtually synchronous. Although the reason for the faunal extinction is unknown. the possibility of causal relationships between faunal extinction and factors directly involved with sedimentation rate, sedimentation rate variation, and sediment type appears to be excluded. |
format |
Article in Journal/Newspaper |
author |
Watkins, N. D. Goodell, H. G. |
spellingShingle |
Watkins, N. D. Goodell, H. G. Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
author_facet |
Watkins, N. D. Goodell, H. G. |
author_sort |
Watkins, N. D. |
title |
Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
title_short |
Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
title_full |
Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
title_fullStr |
Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
title_full_unstemmed |
Geomagnetic Polarity Change and Faunal Extinction in the Southern Ocean |
title_sort |
geomagnetic polarity change and faunal extinction in the southern ocean |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1967 |
url |
http://dx.doi.org/10.1126/science.156.3778.1083 https://www.science.org/doi/pdf/10.1126/science.156.3778.1083 |
geographic |
Antarctic Southern Ocean Pacific |
geographic_facet |
Antarctic Southern Ocean Pacific |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Science volume 156, issue 3778, page 1083-1087 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.156.3778.1083 |
container_title |
Science |
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156 |
container_issue |
3778 |
container_start_page |
1083 |
op_container_end_page |
1087 |
_version_ |
1801374393894436864 |