Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280
Coupled radiocarbon and thorium-230 dates from benthic coral species reveal that the ventilation rate of the North Atlantic upper deep water varied greatly during the last deglaciation. Radiocarbon ages in several corals of the same age, 15.41 6 0.17 thousand years, and nearly the same depth, 1800 m...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.489.6167 2023-05-15T16:29:03+02:00 Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 Jess F. Adkins Hai Cheng Edward A. Boyle Ellen R. M. Druffel R. Lawrence Edwards The Pennsylvania State University CiteSeerX Archives 1998 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.489.6167 http://www.gps.caltech.edu/~jess/DSCScience1997.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.489.6167 http://www.gps.caltech.edu/~jess/DSCScience1997.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.gps.caltech.edu/~jess/DSCScience1997.pdf text 1998 ftciteseerx 2016-01-08T08:23:25Z Coupled radiocarbon and thorium-230 dates from benthic coral species reveal that the ventilation rate of the North Atlantic upper deep water varied greatly during the last deglaciation. Radiocarbon ages in several corals of the same age, 15.41 6 0.17 thousand years, and nearly the same depth, 1800 meters, in the western North Atlantic Ocean increased by as much as 670 years during the 30- to 160-year life spans of the samples. Cadmium/calcium ratios in one coral imply that the nutrient content of these deep waters also increased. Our data show that the deep ocean changed on decadal-centennial time scales during rapid changes in the surface ocean and the atmosphere. Records from Greenland ice cores have revealed that the glacial polar climate shift-ed extremely rapidly several times. From 18,000 to 40,000 years ago (ka), glacial climates were periodically punctuated by rapid returns to milder conditions, called interstadials, that lasted for hundreds of Text Greenland Greenland ice cores North Atlantic Unknown Greenland |
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English |
description |
Coupled radiocarbon and thorium-230 dates from benthic coral species reveal that the ventilation rate of the North Atlantic upper deep water varied greatly during the last deglaciation. Radiocarbon ages in several corals of the same age, 15.41 6 0.17 thousand years, and nearly the same depth, 1800 meters, in the western North Atlantic Ocean increased by as much as 670 years during the 30- to 160-year life spans of the samples. Cadmium/calcium ratios in one coral imply that the nutrient content of these deep waters also increased. Our data show that the deep ocean changed on decadal-centennial time scales during rapid changes in the surface ocean and the atmosphere. Records from Greenland ice cores have revealed that the glacial polar climate shift-ed extremely rapidly several times. From 18,000 to 40,000 years ago (ka), glacial climates were periodically punctuated by rapid returns to milder conditions, called interstadials, that lasted for hundreds of |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jess F. Adkins Hai Cheng Edward A. Boyle Ellen R. M. Druffel R. Lawrence Edwards |
spellingShingle |
Jess F. Adkins Hai Cheng Edward A. Boyle Ellen R. M. Druffel R. Lawrence Edwards Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
author_facet |
Jess F. Adkins Hai Cheng Edward A. Boyle Ellen R. M. Druffel R. Lawrence Edwards |
author_sort |
Jess F. Adkins |
title |
Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
title_short |
Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
title_full |
Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
title_fullStr |
Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
title_full_unstemmed |
Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 14,400 years ago, Science 280 |
title_sort |
deep-sea coral evidence for rapid change in ventilation of the deep north atlantic 14,400 years ago, science 280 |
publishDate |
1998 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.489.6167 http://www.gps.caltech.edu/~jess/DSCScience1997.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice cores North Atlantic |
genre_facet |
Greenland Greenland ice cores North Atlantic |
op_source |
http://www.gps.caltech.edu/~jess/DSCScience1997.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.489.6167 http://www.gps.caltech.edu/~jess/DSCScience1997.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766018744229822464 |