Reconstruction of the conditions of Late Holocene sedimentation by integrated analysis of a core of the bottom sediments from the Chukchi Sea
- Authors: Vologina E.G.1, Sturm M.2, Kalugin I.A.3, Darin A.V.3, Astakhov A.S.4, Chernyaeva G.P.1, Kolesnik A.N.4, Bosin A.A.4
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Affiliations:
- Institute of the Earth’s Crust, Siberian Branch
- Swiss Federal Institute of Aquatic Science and Technology
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Il’ichev Pacific Oceanological Institute, Far East Branch
- Issue: Vol 469, No 2 (2016)
- Pages: 841-845
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/188747
- DOI: https://doi.org/10.1134/S1028334X16080183
- ID: 188747
Cite item
Abstract
Integrated studies were performed on bottom sediments collected in the Chukchi Sea in the northern part of the Gerald Canyon 150 km northeast from Wrangel Island. The recent sedimentation rate amounted to 0.9 mm/year by 210Pb at the sampling site. The concentrations of biogenic components (SiO2bio, Сorg, Ntot, and Br) were minimum at the lower part of the core, where an increase of Thalassiosira antarctica antarctica, probably results from low biological productivity during the Maunder Minimum. The increased concentrations of biogenic components, as well as the decreased values of magnetic susceptibility and X-ray density, in the upper part of the core (1–2 cm) correspond to the last decade of recent of global warming.
About the authors
E. G. Vologina
Institute of the Earth’s Crust, Siberian Branch
Author for correspondence.
Email: vologina@crust.irk.ru
Russian Federation, ul. Lermontova 128, Irkutsk, 664033
M. Sturm
Swiss Federal Institute of Aquatic Science and Technology
Email: vologina@crust.irk.ru
Switzerland, Dübendorf
I. A. Kalugin
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: vologina@crust.irk.ru
Russian Federation, pr. Akad. Koptyuga 3, Novosibirsk, 119037
A. V. Darin
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: vologina@crust.irk.ru
Russian Federation, pr. Akad. Koptyuga 3, Novosibirsk, 119037
A. S. Astakhov
Il’ichev Pacific Oceanological Institute, Far East Branch
Email: vologina@crust.irk.ru
Russian Federation, ul. Baltiiskaya 43, Vladivostok, 690041
G. P. Chernyaeva
Institute of the Earth’s Crust, Siberian Branch
Email: vologina@crust.irk.ru
Russian Federation, ul. Lermontova 128, Irkutsk, 664033
A. N. Kolesnik
Il’ichev Pacific Oceanological Institute, Far East Branch
Email: vologina@crust.irk.ru
Russian Federation, ul. Baltiiskaya 43, Vladivostok, 690041
A. A. Bosin
Il’ichev Pacific Oceanological Institute, Far East Branch
Email: vologina@crust.irk.ru
Russian Federation, ul. Baltiiskaya 43, Vladivostok, 690041