Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence
Today's ice cover (2 to 4 meters thick) over the Arctic Ocean provides a shadow that prevents coccolithophorids (photosynthetic, planktonic algae) from living there. Sparse, low-diversity, but indigenous coccolith assemblages in late Pliocene to mid-Pleistocene (but not Holocene) sediments impl...
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Language: | English |
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American Association for the Advancement of Science (AAAS)
1980
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Online Access: | http://dx.doi.org/10.1126/science.210.4467.323 https://www.science.org/doi/pdf/10.1126/science.210.4467.323 |
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craaas:10.1126/science.210.4467.323 2024-06-09T07:42:54+00:00 Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence Worsley, Thomas R. Herman, Yvonne 1980 http://dx.doi.org/10.1126/science.210.4467.323 https://www.science.org/doi/pdf/10.1126/science.210.4467.323 en eng American Association for the Advancement of Science (AAAS) Science volume 210, issue 4467, page 323-325 ISSN 0036-8075 1095-9203 journal-article 1980 craaas https://doi.org/10.1126/science.210.4467.323 2024-05-16T12:55:56Z Today's ice cover (2 to 4 meters thick) over the Arctic Ocean provides a shadow that prevents coccolithophorids (photosynthetic, planktonic algae) from living there. Sparse, low-diversity, but indigenous coccolith assemblages in late Pliocene to mid-Pleistocene (but not Holocene) sediments imply deep penetrating warm currents or an ice-free Arctic Ocean, or both, as those layers were being deposited. Article in Journal/Newspaper Arctic Arctic Ocean AAAS Resource Center (American Association for the Advancement of Science) Arctic Arctic Ocean Science 210 4467 323 325 |
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Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
Today's ice cover (2 to 4 meters thick) over the Arctic Ocean provides a shadow that prevents coccolithophorids (photosynthetic, planktonic algae) from living there. Sparse, low-diversity, but indigenous coccolith assemblages in late Pliocene to mid-Pleistocene (but not Holocene) sediments imply deep penetrating warm currents or an ice-free Arctic Ocean, or both, as those layers were being deposited. |
format |
Article in Journal/Newspaper |
author |
Worsley, Thomas R. Herman, Yvonne |
spellingShingle |
Worsley, Thomas R. Herman, Yvonne Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
author_facet |
Worsley, Thomas R. Herman, Yvonne |
author_sort |
Worsley, Thomas R. |
title |
Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
title_short |
Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
title_full |
Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
title_fullStr |
Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
title_full_unstemmed |
Episodic Ice-Free Arctic Ocean in Pliocene and Pleistocene Time: Calcareous Nannofossil Evidence |
title_sort |
episodic ice-free arctic ocean in pliocene and pleistocene time: calcareous nannofossil evidence |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1980 |
url |
http://dx.doi.org/10.1126/science.210.4467.323 https://www.science.org/doi/pdf/10.1126/science.210.4467.323 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Science volume 210, issue 4467, page 323-325 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.210.4467.323 |
container_title |
Science |
container_volume |
210 |
container_issue |
4467 |
container_start_page |
323 |
op_container_end_page |
325 |
_version_ |
1801371607743070208 |