Characteristic of quaternary sedimentation on a shelf of the Laptev Sea according to the molecular composition of n-alkanes


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Abstract

The molecular composition and distribution of the concentration of n-alkanes are considered for sediments of boreholes drilled in the shallow part of the Laptev Sea, in the area of Buor Khaya Gulf. The diverse molecular composition of n-alkanes is dominated by long-chain odd homologs, which indicate terrigenous organic matter (OM). Heterogeneous distribution and burial of OM are shown under conditions of pulsating contribution of river and thermoabrasive material and multiple changes in them up to hiatuses in sedimentation.

About the authors

A. S. Ulyantsev

Shirshov Institute of Oceanology

Author for correspondence.
Email: uleg85@gmail.com
Russian Federation, Nakhimovsky pr. 36, Moscow, 117997

E. A. Romankevich

Shirshov Institute of Oceanology; National Research Tomsk Polytechnical University

Email: uleg85@gmail.com
Russian Federation, Nakhimovsky pr. 36, Moscow, 117997; Tomsk, 634050

S. Yu. Bratskaya

Institute of Chemistry, Far East Branch

Email: uleg85@gmail.com
Russian Federation, pr. 100-letiya Vladivostoka, Vladivostok, 690022

N. A. Prokuda

Institute of Chemistry, Far East Branch

Email: uleg85@gmail.com
Russian Federation, pr. 100-letiya Vladivostoka, Vladivostok, 690022

S. V. Sukhoverkhov

Institute of Chemistry, Far East Branch

Email: uleg85@gmail.com
Russian Federation, pr. 100-letiya Vladivostoka, Vladivostok, 690022

I. P. Semiletov

National Research Tomsk Polytechnical University; Il’ichev Pacific Oceanological Institute, Far East Branch

Email: uleg85@gmail.com
Russian Federation, Tomsk, 634050; ul. Baltiiskaya 43, Vladivostok, 690041

V. I. Sergienko

Institute of Chemistry, Far East Branch

Email: uleg85@gmail.com
Russian Federation, pr. 100-letiya Vladivostoka, Vladivostok, 690022

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