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Pliocene agglutinated benthic foraminifera from Site U1341 in the Bering Sea (IODP Expedition 323)

Kaminski, Michael A.; Kender, Sev; Ciurej, Agnieszka; Balc, Ramona; Setoyama, Eiichi. 2013 Pliocene agglutinated benthic foraminifera from Site U1341 in the Bering Sea (IODP Expedition 323). Geological Quarterly, 57 (2). 335-342. 10.7306/gq.1087

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Abstract/Summary

We present the first record of benthic foraminiferal assemblages from 92 samples collected at approximately 3 m resolution in the bottom part of Hole U1341B drilled in the southern Bering Sea during Integrated Ocean Drilling Program (IODP) Expedition 323. Pliocene agglutinated foraminifera are generally rare within highly diatomaceous claystones occurring from base of the hole at 601.87 metres below sea floor (mbsf) to ~320 mbfs. The agglutinated foraminiferal assemblages are strongly dominated by the infaunal genera Eggerella, Karreriella, Martinotiella, and Spirosigmoilina. The calcareouscemented Eggerella and Martinottiella are canaliculated with pores that are open to the test surface. Tubular agglutinated foraminifera are rare and are only found in isolated samples. The ecological information gained from this assemblage supports other proxy information indicating high levels of organic productivity and severely hypoxic conditions in the Bering Sea deep water during the Pliocene.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.7306/gq.1087
Additional Information. Not used in RCUK Gateway to Research.: This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge
NORA Subject Terms: Earth Sciences
Date made live: 02 Aug 2013 13:57 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/502744

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