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Khusid, Tatyana A; Basov, Ivan A; Gorbarenko, Sergey A; Chekhovskaya, Maria P (2006): Ages of sediments recovered by Core GC-11 in the southern Bering Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.745203

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Abstract:
Composition and distribution of benthic foraminifers together with isotopic data on Upper Pleistocene and Holocene sediments from the southern Bering Sea demonstrate variations in bottom water properties during the last 54 ka. Their abundance increased to some extent during a short periods corresponding to warm Dansgaard-Oeshger interstadials 14, 12, 8, and 2 of marine isotopic stages (MIS) 3 and 2. The first and second deglaciation phases separated by the Younger Dryas cooling episode are marked by significant abundance peaks of benthic foraminifers (an order magnitude higher than in the glacial period), although their share in community of benthic and planktonic foraminifers taken together decreases. Species typical of stable high-productivity areas gain a dominant position. A significant proportion of agglutinated species in Holocene sediments is indicative of Ca ions deficiency that accelerated dissolution of carbonate tests up to their disappearance approximately 2.5-3 ka ago.
Related to:
Khusid, Tatyana A; Basov, Ivan A; Gorbarenko, Sergey A; Chekhovskaya, Maria P (2006): Benthic foraminifers in Upper Quaternary sediments of the Southern Bering Sea: Distribution and paleoceanographic interpretations. Stratigraphy and Geological Correlation, 14(5), 538-548, https://doi.org/10.1134/S0869593806050066
Project(s):
Coverage:
Latitude: 53.516667 * Longitude: 178.850000
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 6.60 m
Event(s):
GC-11 * Latitude: 53.516667 * Longitude: 178.850000 * Elevation: -3060.0 m * Location: Bering Sea * Device: Gravity corer (GC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2Age, datedAge datedkaKhusid, Tatyana AAge, radiocarbon
3Age modelAge modelkaKhusid, Tatyana AAge model in radiocarbon 14C ages
Size:
133 data points

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