Accumulation of particulate organic carbon at the Eurasian continental margin during late Quaternary times ...

Data on the amount and composition of organic carbon were determined in sediment cores from the Kara and Laptev Sea continental margin, representing oxygen isotope stages 1-6. The characterization of organic matter is based on hydrogen index (HI) values, n-alkanes and maceral composition, indicating...

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Bibliographic Details
Main Authors: Stein, Ruediger, Boucsein, Bettina, Fahl, Kirsten, Garcia de Oteyza, T, Knies, Jochen, Niessen, Frank
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2001
Subjects:
Gravity corer Russian type
Giant box corer
Gravity corer Kiel type
Kasten corer
MultiCorer
PL-1994
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
East Siberian Sea
laptev
Laptev Sea
Lomonosov Ridge
Online Access:https://dx.doi.org/10.1594/pangaea.728243
https://doi.pangaea.de/10.1594/PANGAEA.728243
Description
Summary:Data on the amount and composition of organic carbon were determined in sediment cores from the Kara and Laptev Sea continental margin, representing oxygen isotope stages 1-6. The characterization of organic matter is based on hydrogen index (HI) values, n-alkanes and maceral composition, indicating the predominance of terrigenous organic matter through space and time. The variations in the amount and composition of organic carbon are mainly influenced by changes in fluvial sediment supply, Atlantic water inflow, and continental ice sheets. During oxygen isotope stage (OIS) 6, high organic carbon contents in sediments from the Laptev Sea and western East Siberian Sea continental margin were probably caused by the increased glacial erosion and further transport in the eastward-flowing boundary current along the continental margin. During OIS 5 and early OIS 3, some increased amounts of marine organic matter were preserved in sediments east of the Lomonosov Ridge, suggesting an influence of nutrient-rich ... : Supplement to: Stein, Ruediger; Boucsein, Bettina; Fahl, Kirsten; Garcia de Oteyza, T; Knies, Jochen; Niessen, Frank (2001): Accumulation of particulate organic carbon at the Eurasian continental margin during late Quaternary times: Controlling mechanisms and paleoenvironmental significance. Global and Planetary Change, 31(1-4), 87-104 ...

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