Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238
This study quantitatively analyzes Pliocene-Pleistocene benthic f'oraminifcra from DSDP Site 238 in the central Indian Ocean. A Q-mode factor analysis of 28 most abundant species defines three significant faunal assemblages reflecting different environmental characteristics. The Cibicida; witel...
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ftindianacasci:oai:repository.ias.ac.in:89865 2023-05-15T13:59:04+02:00 Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh 2007-02 http://repository.ias.ac.in/89865/ unknown Springer Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh (2007) Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 Journal of the Geological Society of India, 69 . pp. 222-232. ISSN 0016-7622 QE Geology Article PeerReviewed 2007 ftindianacasci 2013-01-20T13:36:25Z This study quantitatively analyzes Pliocene-Pleistocene benthic f'oraminifcra from DSDP Site 238 in the central Indian Ocean. A Q-mode factor analysis of 28 most abundant species defines three significant faunal assemblages reflecting different environmental characteristics. The Cibicida; witelterstorfi-Oridorsalix umbonatm assemblage (Factor I) represents well oxygenated bottom waters with active currents and intermediate to low supply of organic matter. The Uvigerina proboscidea assemblage (Factor 2) indicates a continuously high flux of organic matters to the sea floor in response to increased surface water productivity. The NititaUides umbonifera assemblage (Factor 3) is associated with Antarctic Bottom Water (AABW) and reflects cold, oligotrophy, increased carbonate corrosiveness and high oxygen concentration. Article in Journal/Newspaper Antarc* Antarctic Indian Academy of Sciences: Publication of Fellows Antarctic Indian |
institution |
Open Polar |
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Indian Academy of Sciences: Publication of Fellows |
op_collection_id |
ftindianacasci |
language |
unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
topic_facet |
QE Geology |
description |
This study quantitatively analyzes Pliocene-Pleistocene benthic f'oraminifcra from DSDP Site 238 in the central Indian Ocean. A Q-mode factor analysis of 28 most abundant species defines three significant faunal assemblages reflecting different environmental characteristics. The Cibicida; witelterstorfi-Oridorsalix umbonatm assemblage (Factor I) represents well oxygenated bottom waters with active currents and intermediate to low supply of organic matter. The Uvigerina proboscidea assemblage (Factor 2) indicates a continuously high flux of organic matters to the sea floor in response to increased surface water productivity. The NititaUides umbonifera assemblage (Factor 3) is associated with Antarctic Bottom Water (AABW) and reflects cold, oligotrophy, increased carbonate corrosiveness and high oxygen concentration. |
format |
Article in Journal/Newspaper |
author |
Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh |
author_facet |
Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh |
author_sort |
Rai, Ajai Kumar |
title |
Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
title_short |
Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
title_full |
Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
title_fullStr |
Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
title_full_unstemmed |
Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 |
title_sort |
influence of antarctic bottom water (aabw) and monsoonal activity in the central indian ocean over past 5 million years: benthic foraminiferal record at dsdp site 238 |
publisher |
Springer |
publishDate |
2007 |
url |
http://repository.ias.ac.in/89865/ |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Rai, Ajai Kumar Srinivasan, M. S. Maurya, Abhayanand Singh (2007) Influence of Antarctic Bottom Water (AABW) and monsoonal activity in the Central Indian Ocean over past 5 million years: benthic foraminiferal record at DSDP Site 238 Journal of the Geological Society of India, 69 . pp. 222-232. ISSN 0016-7622 |
_version_ |
1766267434306633728 |