Planktonic foraminifers in the southern Bering Sea: Changes in composition and productivity during the Late Pleistocene-Holocene |
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| Authors: | M P Chekhovskaya I A Basov A G Matul T A Khusid S A Gorbarenko |
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| Institution: | (1) P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimovskii pr. 36, Moscow, 117218, Russia;(2) Geological Institute, Russian Academy of Sciences, Pyzhevskii per. 7, Moscow, 119017, Russia;(3) V.I. Il’ichev Pacific Institute of Oceanology, Far East Division, Russian Academy of Sciences, ul. Baltiiskaya 43, Vladivostok, 690041, Russia |
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| Abstract: | Taxonomic composition and distribution of planktonic foraminifers are studied in section of Core GC-11 that penetrated through Upper Quaternary sediments of the Bowers Ridge western slope, the southern Bering Sea. As is shown, structure of foraminiferal assemblage and productivity have varied substantially during the last 32000 calendar years in response to changes in surface water temperatures and water mass circulation in the northern part of the Pacific, the Bering Sea included. The productivity was maximal during deglaciation epoch, being notably lower in the Holocene and minimal at the glaciation time. |
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| Keywords: | productivity planktonic foraminifers Late Pleistocene Holocene deglaciation Younger Dryas Bering Sea |
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