Sedimentation rate in Cheko Lake (Evenkia, Siberia): New evidence on the problem of the 1908 Tunguska Event
- Autores: Rogozin D.Y.1,2, Darin A.V.3, Kalugin I.A.3, Melgunov M.S.3, Meydus A.V.4, Degermendzhi A.G.1
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Afiliações:
- Institute of Biophysics, Siberian Branch
- Siberian Federal University
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Krasnoyarsk State Pedagogical University
- Edição: Volume 476, Nº 2 (2017)
- Páginas: 1226-1228
- Seção: Geochemistry
- URL: https://ogarev-online.ru/1028-334X/article/view/191225
- DOI: https://doi.org/10.1134/S1028334X17100269
- ID: 191225
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Resumo
We estimated the age and sedimentation rate of bottom sediments in Cheko Lake located in southern Evenkia, in the territory of Tunguska Nature Reserve, near the supposed epicenter of the so-called 1908 Tunguska Event. The vertical distributions of 137Cs and 210Pb activity and visually counted varves in the core of lake bottom sediments indicate that Cheko Lake is significantly older than the 1908 Tunguska Event; therefore, the lake basin cannot be a crater or a trace of the explosion as was supposed earlier by some researchers.
Sobre autores
D. Rogozin
Institute of Biophysics, Siberian Branch; Siberian Federal University
Autor responsável pela correspondência
Email: rogozin@ibp.ru
Rússia, Krasnoyarsk, 660036; Krasnoyarsk
A. Darin
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: rogozin@ibp.ru
Rússia, Novosibirsk, 630090
I. Kalugin
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: rogozin@ibp.ru
Rússia, Novosibirsk, 630090
M. Melgunov
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: rogozin@ibp.ru
Rússia, Novosibirsk, 630090
A. Meydus
Krasnoyarsk State Pedagogical University
Email: rogozin@ibp.ru
Rússia, Krasnoyarsk
A. Degermendzhi
Institute of Biophysics, Siberian Branch
Email: rogozin@ibp.ru
Rússia, Krasnoyarsk, 660036
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