Clay minerals as indicators of late Quaternary sedimentation constraints in the Mendeleev Rise, Amerasian Basin, Arctic Ocean.

Krylov, A. A., Stein, Rüdiger and Ermakova, L. A. (2014) Clay minerals as indicators of late Quaternary sedimentation constraints in the Mendeleev Rise, Amerasian Basin, Arctic Ocean. Lithology and Mineral Resources, 49 (1). pp. 103-116. DOI 10.1134/S0024490213060059.

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Abstract

The results of study of six cores taken from different morphostructural zones in the Mendeleev Ridge area are discussed. Average contents of minerals of the illite group, chlorite, kaolinite, and smectite are about 60, 21, 12, and 5%, respectively. It was found that fluctuations of minerals along the section correlate with variations in sedimentation constraints in the Late Quaternary. Peaks of kaolinite usually coincide with increased contents of the sand fraction, probably, due to its delivery by icebergs. In contrast, illite shows good correlation with the pelite fraction, testifying to its transport mainly by ices and currents. Minerals of the chlorite and smectite groups in the studied cores are less informative.

Document Type: Article
Keywords: Late Quaternary; Minerals fluctuation; Marine sediments; Mendeleev Rise, Amerasian Basin, Arctic Ocean
Research affiliation: AWI
Refereed: Yes
DOI etc.: 10.1134/S0024490213060059
ISSN: 0024-4902
Projects: Laptev Sea System, Transdrift, Otto Schmidt Laboratory
Date Deposited: 13 Mar 2015 10:46
Last Modified: 24 Jul 2015 12:38
URI: http://oceanrep.geomar.de/id/eprint/28022

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