Particle size composition of Holocene–Pleistocene deposits of the Laptev Sea (Buor-Khaya Bay)
- Authors: Ulyantsev A.S.1, Bratskaya S.Y.2, Romankevich E.A.1,3, Semiletov I.P.3,4, Avramenko V.A.2
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Affiliations:
- Shirshov Institute of Oceanology
- Institute of Chemistry, Far East Branch
- National Research Tomsk Polytechnic University
- Pacific Oceonological Institute, Far East Branch
- Issue: Vol 467, No 1 (2016)
- Pages: 241-245
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/188138
- DOI: https://doi.org/10.1134/S1028334X16030168
- ID: 188138
Cite item
Abstract
New data on the particle size composition of the Laptev Sea shelf deposits were obtained on the basis of results of low-angle laser light-scattering of core samples from the columns studied. It was revealed that the sand fraction dominates. The results of comparative analysis of the particle size composition of deposits show that the Laptev Sea shelf zone was characterized by highly variable spatial–temporal conditions and settings of sedimentation in the Quaternary, a polygenic character of deposits, and a pulsating influence of fluvial and slope processes on the conditions of sedimentation. A tendency of coarsening in the vertical sequence that contributes to thawing of the permafrost was revealed in the Ivashkina lagoon.
About the authors
A. S. Ulyantsev
Shirshov Institute of Oceanology
Author for correspondence.
Email: uleg85@gmail.com
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218
S. Yu. Bratskaya
Institute of Chemistry, Far East Branch
Email: uleg85@gmail.com
Russian Federation, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022
E. A. Romankevich
Shirshov Institute of Oceanology; National Research Tomsk Polytechnic University
Email: uleg85@gmail.com
Russian Federation, Nakhimovskii pr. 36, Moscow, 117218; ul. Lenina 30, Tomsk, 634050
I. P. Semiletov
National Research Tomsk Polytechnic University; Pacific Oceonological Institute, Far East Branch
Email: uleg85@gmail.com
Russian Federation, ul. Lenina 30, Tomsk, 634050; Baltiiskaya ul. 43, Vladivostok, 690041
V. A. Avramenko
Institute of Chemistry, Far East Branch
Email: uleg85@gmail.com
Russian Federation, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022