Accumulation of organic carbon in the Laptev Sea, supplement to: Stein, Ruediger; Fahl, Kirsten (2000): Holocene accumulation of organic carbon at the Laptev Sea continental margin (Arctic Ocean): sources, pathways, and sinks. Geo-Marine Letters, 20(1), 27-36

Composition and accumulation rates of organic carbon in Holocene sediments provided data to calculate an organic carbon budget for the Laptev Sea continental margin. Mean Holocene accumulation rates in the inner Laptev Sea vary between 0.14 and 2.7 g C cm**2/ky; maximum values occur close to the Len...

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Bibliographic Details
Main Authors: Stein, Ruediger, Fahl, Kirsten
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2000
Subjects:
Box corer
Kasten corer RUS
Gravity corer Russian type
Gravity corer Kiel type
MultiCorer
Kasten corer
Giant box corer
PL-1994
ARK-VIII/2
ARK-VIII/3
ARK-IX/4
ARK-XI/1
Professor Logachev
Polarstern
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo
Quaternary Environment of the Eurasian North QUEEN
Siberian River Run-Off SIRRO
Arctic
Arctic Ocean
Laptev Sea
Rus’
laptev
lena river
Online Access:https://dx.doi.org/10.1594/pangaea.711774
https://doi.pangaea.de/10.1594/PANGAEA.711774
Description
Summary:Composition and accumulation rates of organic carbon in Holocene sediments provided data to calculate an organic carbon budget for the Laptev Sea continental margin. Mean Holocene accumulation rates in the inner Laptev Sea vary between 0.14 and 2.7 g C cm**2/ky; maximum values occur close to the Lena River delta. Seawards, the mean accumulation rates decrease from 0.43 to 0.02 g C cm**2/ky. The organic matter is predominantly of terrigenous origin. About 0.9*10**6 t/year of organic carbon are buried in the Laptev Sea, and 0.25*10**6 t/year on the continental slope. Between about 8.5 and 9 ka, major changes in supply of terrigenous and marine organic carbon occur, related to changes in coastal erosion, Siberian river discharge, and/or Atlantic water inflow along the Eurasian continental margin. : For age determination of sediment core PS2725-5 see Fahl and Stein (1999) data set: doi:10.1594/PANGAEA.85168, for susceptibility of PS2476-4 see Nuernberg et al., (1995) dataset: doi:10.1594/PANGAEA.50903. Further relevant data see Bauch et al. (1999) datasets: doi:10.1594/PANGAEA.711773

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