Bhaumik, Ajoy K.; Gupta, Anil K.; Raj, M. Sundar; Mohan, K.; De, Soma; Sarkar, Sudipta (2007): Paleoceanographic evolution of the northeastern Indian Ocean during the Miocene; evidence from deep-sea benthic Foraminifera (DSDP Hole 216A). Council of Scientific & Industrial Research, New Delhi, India, In: Nigam, Rajiv (editor), Saraswat, R. (editor), Marine micropaleontological studies from the northern Indian Ocean, 36 (4), 332-341, georefid:2008-118143

Abstract:
Statistical analyses (factor and cluster) were performed on 30 highest ranked deep-sea benthic foraminifer species from >149 mu m size fraction from Deep Sea Drilling Project Hole 216A to understand Miocene ( approximately 20.5 to approximately 7 Ma) paleoceanographic evolution of the northeastern Indian Ocean. Factor and cluster analyses enabled us to identify five biofacies defining five clusters. Known ecological preferences of benthic foraminifera were used for environmental interpretations. The faunal data documents a shift in deep-sea ventilation and productivity at 15-14 Ma, coinciding with the abrupt cooling in the middle Miocene. This coincides with the beginning of permanent ice sheets in Antarctica during the middle Miocene.
Coverage:
West: 90.1228 East: 90.1229 North: 1.2744 South: 1.2743
Relations:
Expedition: 22
Site: 22-216
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2008-118143 (c.f. for more detailed metadata)
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