Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific
Abstract The distributions of the radiolarian assemblages in the Northeastern Pacific Ocean were determined and correlated with the average summer temperature of the near surface waters of this region. These assemblages were compared with those in three sediment cores taken beneath the Transition Zo...
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Language: | English |
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Cambridge University Press (CUP)
1973
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Online Access: | http://dx.doi.org/10.1016/0033-5894(73)90056-2 http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400035808 |
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crcambridgeupr:10.1016/0033-5894(73)90056-2 2024-09-09T19:41:43+00:00 Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific Moore, Ted C. 1973 http://dx.doi.org/10.1016/0033-5894(73)90056-2 http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400035808 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 3, issue 1, page 99-109 ISSN 0033-5894 1096-0287 journal-article 1973 crcambridgeupr https://doi.org/10.1016/0033-5894(73)90056-2 2024-07-24T04:02:31Z Abstract The distributions of the radiolarian assemblages in the Northeastern Pacific Ocean were determined and correlated with the average summer temperature of the near surface waters of this region. These assemblages were compared with those in three sediment cores taken beneath the Transition Zone waters. This comparison indicates that the assemblage off Oregon at the last maximum cold interval (24,000 yr B.P.) was like that now found off southern Alaska. The correlation of the radiolarian assemblages with temperature gives an estimate of 11°C for the average summer temperature at that time. This is approximately 4°C cooler than present day conditions in the area. Superimposed on the general warming trend that began 24,000 y.a., there are minor oscillations in the assemblages which correspond to estimates of temperature change of about 2°C in the Pleistocene and about 1°C in the Holocene. In the Holocene, these minor warm intervals appear to be approximately synchronous with advances in mountain glaciers. Article in Journal/Newspaper glaciers Alaska Cambridge University Press Pacific Quaternary Research 3 1 99 109 |
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Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The distributions of the radiolarian assemblages in the Northeastern Pacific Ocean were determined and correlated with the average summer temperature of the near surface waters of this region. These assemblages were compared with those in three sediment cores taken beneath the Transition Zone waters. This comparison indicates that the assemblage off Oregon at the last maximum cold interval (24,000 yr B.P.) was like that now found off southern Alaska. The correlation of the radiolarian assemblages with temperature gives an estimate of 11°C for the average summer temperature at that time. This is approximately 4°C cooler than present day conditions in the area. Superimposed on the general warming trend that began 24,000 y.a., there are minor oscillations in the assemblages which correspond to estimates of temperature change of about 2°C in the Pleistocene and about 1°C in the Holocene. In the Holocene, these minor warm intervals appear to be approximately synchronous with advances in mountain glaciers. |
format |
Article in Journal/Newspaper |
author |
Moore, Ted C. |
spellingShingle |
Moore, Ted C. Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
author_facet |
Moore, Ted C. |
author_sort |
Moore, Ted C. |
title |
Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
title_short |
Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
title_full |
Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
title_fullStr |
Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
title_full_unstemmed |
Late Pleistocene-Holocene Oceanographic Changes in the Northeastern Pacific |
title_sort |
late pleistocene-holocene oceanographic changes in the northeastern pacific |
publisher |
Cambridge University Press (CUP) |
publishDate |
1973 |
url |
http://dx.doi.org/10.1016/0033-5894(73)90056-2 http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589473900562?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400035808 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
glaciers Alaska |
genre_facet |
glaciers Alaska |
op_source |
Quaternary Research volume 3, issue 1, page 99-109 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(73)90056-2 |
container_title |
Quaternary Research |
container_volume |
3 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
109 |
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1809911035325317120 |