MAGNETO-MINERALOGICAL ANOMALIES AT THE PLEISTOCENE-HOLOCENE BOUNDARY IN LAKE SEDIMENTS OF NORTHEASTERN RUSSIA
- Authors: Minyuk P.S.1, Pozhidaeva D.K.1, Sotskaya O.T.1, Akinin V.V.1, Morozova M.A.1
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Affiliations:
- N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
- Issue: Vol 510, No 2 (2023)
- Pages: 194-200
- Section: LITHOLOGY
- Submitted: 30.01.2025
- Published: 01.06.2023
- URL: https://edgccjournal.org/2686-7397/article/view/649651
- DOI: https://doi.org/10.31857/S2686739723600182
- EDN: https://elibrary.ru/UKKFMJ
- ID: 649651
Cite item
Abstract
The results of the study of lake sediments in the North-East of Russia are presented. The reasons for the abnormally high values of magnetic susceptibility in the transition layers from the Late Pleistocene to the Holocene are considered. The magnetic fraction of Lake Grand sediments is represented by detrital titanomagnetites and magnetites. In the sediments of the Gryazevoye, Sosednee, Vodorazdelnoye, and Sapog lakes, high values of magnetic susceptibility are due to autigenic iron sulfides, mainly greigite. The data obtained do not confirm the well-known assumption about the presence of an impact event at the boundary of the Pleistocene and Holocene.
About the authors
P. S. Minyuk
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
Author for correspondence.
Email: minyuk@neisri.ru
Russian Federation, Magadan
D. K. Pozhidaeva
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
Email: minyuk@neisri.ru
Russian Federation, Magadan
O. T. Sotskaya
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
Email: minyuk@neisri.ru
Russian Federation, Magadan
V. V. Akinin
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
Email: minyuk@neisri.ru
Russian Federation, Magadan
M. A. Morozova
N.A. Shilo North-East Interdisciplinary Scientific Research Institute, Far-Eastern Branch of the Russian Academy of Sciences
Email: minyuk@neisri.ru
Russian Federation, Magadan
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