Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean
A detailed paleoceanographic history of the Subantarctic region for the last million years was determined using paleomagnetic stratigraphy, radiolarian and planktonic foraminiferal biostratigraphy, and the oxygen isotope record from stages 1 to 13 (0.5 MY) in a deep-sea core (E45-74) from the southe...
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Language: | English |
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Cambridge University Press (CUP)
1978
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Online Access: | http://dx.doi.org/10.1016/0033-5894(78)90083-2 http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400028908 |
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crcambridgeupr:10.1016/0033-5894(78)90083-2 2024-06-09T07:40:51+00:00 Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean Williams, Douglas F. Keany, John 1978 http://dx.doi.org/10.1016/0033-5894(78)90083-2 http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400028908 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 9, issue 1, page 71-86 ISSN 0033-5894 1096-0287 journal-article 1978 crcambridgeupr https://doi.org/10.1016/0033-5894(78)90083-2 2024-05-15T13:14:51Z A detailed paleoceanographic history of the Subantarctic region for the last million years was determined using paleomagnetic stratigraphy, radiolarian and planktonic foraminiferal biostratigraphy, and the oxygen isotope record from stages 1 to 13 (0.5 MY) in a deep-sea core (E45-74) from the southern Indian Ocean. Changes in the abundances of Antarctissa strelkovi and Neogloboquadrina pachyderma record 12 glacial/interglacial cycles. The paleoceanographic events based on the combined results of these siliceous and calcareous indexes agree with changes in the global ice-volume record. Calcium carbonate dissolution selectively alters the planktonic foraminiferal fauna and causes test fragmentation and increased numbers of benthic foraminifera and radiolarians. Intense periods of calcium carbonate dissolution are associated principally with glacial episodes and are probably related to increased Antarctic bottom-water activity as well as changes in surface-water mass positions. Article in Journal/Newspaper Antarc* Antarctic Neogloboquadrina pachyderma Cambridge University Press Antarctic Indian Quaternary Research 9 1 71 86 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
A detailed paleoceanographic history of the Subantarctic region for the last million years was determined using paleomagnetic stratigraphy, radiolarian and planktonic foraminiferal biostratigraphy, and the oxygen isotope record from stages 1 to 13 (0.5 MY) in a deep-sea core (E45-74) from the southern Indian Ocean. Changes in the abundances of Antarctissa strelkovi and Neogloboquadrina pachyderma record 12 glacial/interglacial cycles. The paleoceanographic events based on the combined results of these siliceous and calcareous indexes agree with changes in the global ice-volume record. Calcium carbonate dissolution selectively alters the planktonic foraminiferal fauna and causes test fragmentation and increased numbers of benthic foraminifera and radiolarians. Intense periods of calcium carbonate dissolution are associated principally with glacial episodes and are probably related to increased Antarctic bottom-water activity as well as changes in surface-water mass positions. |
format |
Article in Journal/Newspaper |
author |
Williams, Douglas F. Keany, John |
spellingShingle |
Williams, Douglas F. Keany, John Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
author_facet |
Williams, Douglas F. Keany, John |
author_sort |
Williams, Douglas F. |
title |
Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
title_short |
Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
title_full |
Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
title_fullStr |
Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
title_full_unstemmed |
Comparison of Radiolarian/Planktonic Foraminiferal Paleoceanography of the Subantarctic Indian Ocean |
title_sort |
comparison of radiolarian/planktonic foraminiferal paleoceanography of the subantarctic indian ocean |
publisher |
Cambridge University Press (CUP) |
publishDate |
1978 |
url |
http://dx.doi.org/10.1016/0033-5894(78)90083-2 http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589478900832?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400028908 |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic Neogloboquadrina pachyderma |
genre_facet |
Antarc* Antarctic Neogloboquadrina pachyderma |
op_source |
Quaternary Research volume 9, issue 1, page 71-86 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(78)90083-2 |
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Quaternary Research |
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9 |
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1 |
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71 |
op_container_end_page |
86 |
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1801369254454362112 |