Инд. авторы: | Rogozin D.Y., Darin A.V., Kalugin I.A., Melgunov M.S., Meydus A.V., Degermendzhi A.G. |
Заглавие: | Sedimentation rate in Cheko Lake (Evenkia, Siberia): New evidence on the problem of the 1908 Tunguska Event |
Библ. ссылка: | Rogozin D.Y., Darin A.V., Kalugin I.A., Melgunov M.S., Meydus A.V., Degermendzhi A.G. Sedimentation rate in Cheko Lake (Evenkia, Siberia): New evidence on the problem of the 1908 Tunguska Event // Doklady Earth Sciences. - 2017. - Vol.476. - Iss. 2. - P.1226-1228. - ISSN 1028-334X. - EISSN 1531-8354. |
Внешние системы: | DOI: 10.1134/S1028334X17100269; РИНЦ: 31066955; SCOPUS: 2-s2.0-85032946615; WoS: 000414357900026; |
Реферат: | eng: 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. © 2017, Pleiades Publishing, Ltd.
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Ключевые слова: | SIBERIA; Tunguska; Vertical distributions; Lakes; cesium isotope; geochronology; impact structure; lacustrine deposit; lead isotope; nature reserve; sedimentation rate; varve; vertical distribution; Tunguska; Russian Federation; Lake Cheko; Krasnoyarsk [Russian Federation]; Nature reserves; Lake bottom sediments; Lake basins; Bottom sediments; Earth sciences; Sedimentation rates; |
Издано: | 2017 |
Физ. характеристика: | с.1226-1228 |