Stable isotopes, core logging data, relative paleointensity, dry bulk density, biogenic opal, CN-data (TC, TOC, CaCO3, TN), element concentrations, and coarse fraction of three sediment cores from the western Bering Sea ...

We used piston cores recovered in the western Bering Sea to reconstruct millennial-scale changes in marine productivity and terrigenous matter supply over the past ~180 kyr. Based on a geochemical multi-proxy approach, our results indicate closely interacting processes controlling marine productivit...

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Bibliographic Details
Main Authors: Riethdorf, Jan-Rainer, Nürnberg, Dirk, Max, Lars, Tiedemann, Ralf, Gorbarenko, Sergey A, Malakhov, Mikhail I
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2013
Subjects:
Kurile-Kamchatka and Aleutean Marginal Sea-Island Arc Systems Geodynamic and Climate Interaction in Space and Time KALMAR
Bering Sea
Kamchatka
okhotsk sea
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.786307
https://doi.pangaea.de/10.1594/PANGAEA.786307
Description
Summary:We used piston cores recovered in the western Bering Sea to reconstruct millennial-scale changes in marine productivity and terrigenous matter supply over the past ~180 kyr. Based on a geochemical multi-proxy approach, our results indicate closely interacting processes controlling marine productivity and terrigenous matter supply comparable to the situation in the Okhotsk Sea. Overall, terrigenous inputs were high, whereas export production was low. Minor increases in marine productivity occurred during intervals of Marine Isotope Stage 5 and interstadials, but pronounced maxima were recorded during interglacials and Termination I. The terrigenous material is suggested to be derived from continental sources on the eastern Bering Sea shelf and to be subsequently transported via sea ice, which is likely to drive changes in surface productivity, terrigenous inputs, and upper-ocean stratification. From our results we propose glacial, deglacial, and interglacial scenarios for environmental change in the Bering ... : Supplement to: Riethdorf, Jan-Rainer; Nürnberg, Dirk; Max, Lars; Tiedemann, Ralf; Gorbarenko, Sergey A; Malakhov, Mikhail I (2013): Millennial-scale variability of marine productivity and terrigenous matter supply in the western Bering Sea over the past 180 kyr. Climate of the Past, 9(3), 1345-1373 ...

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