Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years
We report changes of deep-sea ostracod fauna during the last 370,000 yr from the Ocean Drilling Program (ODP) Hole 704A in the South Atlantic sector of the Southern Ocean. The results show that faunal changes are coincident with glacial/interglacial-scale deep-water circulation changes, even though...
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:2367 2023-05-15T17:13:54+02:00 Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years Yasuhara, Moriaki Cronin, Thomas M. Hunt, Gene Hodell, David A. 2011-10 application/pdf http://eprints.esc.cam.ac.uk/2367/ http://eprints.esc.cam.ac.uk/2367/1/Geology-2011-Romero-G32454.1.pdf http://jpaleontol.geoscienceworld.org/content/83/6/914.abstract https://doi.org/10.1130/G32454.1 en eng http://eprints.esc.cam.ac.uk/2367/1/Geology-2011-Romero-G32454.1.pdf Yasuhara, Moriaki and Cronin, Thomas M. and Hunt, Gene and Hodell, David A. (2011) Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years. Journal of Paleontology, 83 (6). 914 -930. DOI https://doi.org/10.1130/G32454.1 <https://doi.org/10.1130/G32454.1> 01 - Climate Change and Earth-Ocean Atmosphere Systems Article PeerReviewed 2011 ftucambridgeesc https://doi.org/10.1130/G32454.1 2020-08-27T18:09:16Z We report changes of deep-sea ostracod fauna during the last 370,000 yr from the Ocean Drilling Program (ODP) Hole 704A in the South Atlantic sector of the Southern Ocean. The results show that faunal changes are coincident with glacial/interglacial-scale deep-water circulation changes, even though our dataset is relatively small and the waters are barren of ostracods until mid-MIS (Marine Isotope Stage) 5. Krithe and Poseidonamicus were dominant during the Holocene interglacial period and the latter part of MIS 5, when this site was under the influence of North Atlantic Deep Water (NADW). Conversely, Henryhowella and Legitimocythere were dominant during glacial periods, when this site was in the path of Circumpolar Deep Water (CPDW). Three new species (Aversovalva brandaoae, Poseidonamicus hisayoae, and Krithe mazziniae) are described herein. This is the first report of Quaternary glacial/interglacial scale deep-sea ostracod faunal changes in the Southern and South Atlantic Oceans, a key region for understanding Quaternary climate and deep-water circulation, although the paucity of Quaternary ostracods in this region necessitates further research. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Southern Ocean University of Cambridge, Department of Earth Sciences: ESC Publications Southern Ocean Geology 39 11 1015 1018 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
spellingShingle |
01 - Climate Change and Earth-Ocean Atmosphere Systems Yasuhara, Moriaki Cronin, Thomas M. Hunt, Gene Hodell, David A. Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
topic_facet |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
description |
We report changes of deep-sea ostracod fauna during the last 370,000 yr from the Ocean Drilling Program (ODP) Hole 704A in the South Atlantic sector of the Southern Ocean. The results show that faunal changes are coincident with glacial/interglacial-scale deep-water circulation changes, even though our dataset is relatively small and the waters are barren of ostracods until mid-MIS (Marine Isotope Stage) 5. Krithe and Poseidonamicus were dominant during the Holocene interglacial period and the latter part of MIS 5, when this site was under the influence of North Atlantic Deep Water (NADW). Conversely, Henryhowella and Legitimocythere were dominant during glacial periods, when this site was in the path of Circumpolar Deep Water (CPDW). Three new species (Aversovalva brandaoae, Poseidonamicus hisayoae, and Krithe mazziniae) are described herein. This is the first report of Quaternary glacial/interglacial scale deep-sea ostracod faunal changes in the Southern and South Atlantic Oceans, a key region for understanding Quaternary climate and deep-water circulation, although the paucity of Quaternary ostracods in this region necessitates further research. |
format |
Article in Journal/Newspaper |
author |
Yasuhara, Moriaki Cronin, Thomas M. Hunt, Gene Hodell, David A. |
author_facet |
Yasuhara, Moriaki Cronin, Thomas M. Hunt, Gene Hodell, David A. |
author_sort |
Yasuhara, Moriaki |
title |
Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
title_short |
Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
title_full |
Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
title_fullStr |
Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
title_full_unstemmed |
Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years |
title_sort |
deep-sea ostracods from the south atlantic sector of the southern ocean during the last 370,000 years |
publishDate |
2011 |
url |
http://eprints.esc.cam.ac.uk/2367/ http://eprints.esc.cam.ac.uk/2367/1/Geology-2011-Romero-G32454.1.pdf http://jpaleontol.geoscienceworld.org/content/83/6/914.abstract https://doi.org/10.1130/G32454.1 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
NADW North Atlantic Deep Water North Atlantic Southern Ocean |
genre_facet |
NADW North Atlantic Deep Water North Atlantic Southern Ocean |
op_relation |
http://eprints.esc.cam.ac.uk/2367/1/Geology-2011-Romero-G32454.1.pdf Yasuhara, Moriaki and Cronin, Thomas M. and Hunt, Gene and Hodell, David A. (2011) Deep-Sea Ostracods from the South Atlantic Sector of the Southern Ocean During the Last 370,000 Years. Journal of Paleontology, 83 (6). 914 -930. DOI https://doi.org/10.1130/G32454.1 <https://doi.org/10.1130/G32454.1> |
op_doi |
https://doi.org/10.1130/G32454.1 |
container_title |
Geology |
container_volume |
39 |
container_issue |
11 |
container_start_page |
1015 |
op_container_end_page |
1018 |
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1766071087620161536 |