Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage
Abstract Geochemical characteristics of marine sediment from the southern Drake Passage were analyzed to reconstruct variations in sediment provenance and transport paths during the late Quaternary. The 5.95 m gravity core used in this study records paleoenvironmental changes during the last approxi...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/j.yqres.2012.03.010 2024-09-09T19:05:41+00:00 Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage Lee, Jae Il Yoon, Ho Il Yoo, Kyu-Cheul Lim, Hyoun Soo Lee, Yong Il Kim, Donghyun Bak, Young-Suk Itaki, Takuya 2012 http://dx.doi.org/10.1016/j.yqres.2012.03.010 http://api.elsevier.com/content/article/PII:S0033589412000361?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000361?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008449 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 78, issue 1, page 119-129 ISSN 0033-5894 1096-0287 journal-article 2012 crcambridgeupr https://doi.org/10.1016/j.yqres.2012.03.010 2024-06-19T04:04:35Z Abstract Geochemical characteristics of marine sediment from the southern Drake Passage were analyzed to reconstruct variations in sediment provenance and transport paths during the late Quaternary. The 5.95 m gravity core used in this study records paleoenvironmental changes during the last approximately 600 ka. Down-core variations in trace element, rare earth element, and Nd and Sr isotopic compositions reveal that sediment provenance varied according to glacial cycles. During glacial periods, detrital sediments in the southern Drake Passage were mostly derived from the nearby South Shetland Islands and shelf sediments. In contrast, interglacial sediments are composed of mixed sediments, derived from both West Antarctica and East Antarctica. The East Antarctic provenance of the interglacial sediments was inferred to be the Weddell Sea region. Sediment input from the Weddell Sea was reduced during glacial periods by extensive ice sheets and weakened current from the Weddell Sea. Sediment supply from the Weddell Sea increased during interglacial periods, especially those with higher warmth such as MIS 5, 9, and 11. This suggests that the influence of deep water from the Weddell Sea increases during interglacial periods and decreases during glacial periods, with the degree of influence increasing as interglacial intensity increases. Article in Journal/Newspaper Antarc* Antarctic Antarctica Drake Passage East Antarctica South Shetland Islands Weddell Sea West Antarctica Cambridge University Press Antarctic Weddell Sea East Antarctica West Antarctica Drake Passage South Shetland Islands Weddell Quaternary Research 78 1 119 129 |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Abstract Geochemical characteristics of marine sediment from the southern Drake Passage were analyzed to reconstruct variations in sediment provenance and transport paths during the late Quaternary. The 5.95 m gravity core used in this study records paleoenvironmental changes during the last approximately 600 ka. Down-core variations in trace element, rare earth element, and Nd and Sr isotopic compositions reveal that sediment provenance varied according to glacial cycles. During glacial periods, detrital sediments in the southern Drake Passage were mostly derived from the nearby South Shetland Islands and shelf sediments. In contrast, interglacial sediments are composed of mixed sediments, derived from both West Antarctica and East Antarctica. The East Antarctic provenance of the interglacial sediments was inferred to be the Weddell Sea region. Sediment input from the Weddell Sea was reduced during glacial periods by extensive ice sheets and weakened current from the Weddell Sea. Sediment supply from the Weddell Sea increased during interglacial periods, especially those with higher warmth such as MIS 5, 9, and 11. This suggests that the influence of deep water from the Weddell Sea increases during interglacial periods and decreases during glacial periods, with the degree of influence increasing as interglacial intensity increases. |
format |
Article in Journal/Newspaper |
author |
Lee, Jae Il Yoon, Ho Il Yoo, Kyu-Cheul Lim, Hyoun Soo Lee, Yong Il Kim, Donghyun Bak, Young-Suk Itaki, Takuya |
spellingShingle |
Lee, Jae Il Yoon, Ho Il Yoo, Kyu-Cheul Lim, Hyoun Soo Lee, Yong Il Kim, Donghyun Bak, Young-Suk Itaki, Takuya Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
author_facet |
Lee, Jae Il Yoon, Ho Il Yoo, Kyu-Cheul Lim, Hyoun Soo Lee, Yong Il Kim, Donghyun Bak, Young-Suk Itaki, Takuya |
author_sort |
Lee, Jae Il |
title |
Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
title_short |
Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
title_full |
Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
title_fullStr |
Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
title_full_unstemmed |
Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage |
title_sort |
late quaternary glacial–interglacial variations in sediment supply in the southern drake passage |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1016/j.yqres.2012.03.010 http://api.elsevier.com/content/article/PII:S0033589412000361?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589412000361?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400008449 |
geographic |
Antarctic Weddell Sea East Antarctica West Antarctica Drake Passage South Shetland Islands Weddell |
geographic_facet |
Antarctic Weddell Sea East Antarctica West Antarctica Drake Passage South Shetland Islands Weddell |
genre |
Antarc* Antarctic Antarctica Drake Passage East Antarctica South Shetland Islands Weddell Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Drake Passage East Antarctica South Shetland Islands Weddell Sea West Antarctica |
op_source |
Quaternary Research volume 78, issue 1, page 119-129 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2012.03.010 |
container_title |
Quaternary Research |
container_volume |
78 |
container_issue |
1 |
container_start_page |
119 |
op_container_end_page |
129 |
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1809819692259344384 |