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    Traces of the Tunguska Event (1908) in Sediments of Zapovednoe Lake Based on SR–XRF Data / A. V. Darin, D. Y. Rogozin, A. V. Meydus [et al.] // Dokl. Earth Sci. - 2020. - Vol. 492, Is. 2. - P442-445, DOI 10.1134/S1028334X20060045 . - ISSN 1028-334X
Кл.слова (ненормированные):
lake sediments -- microelements -- synchrotron radiation (SR) -- Tunguska event 1908 -- X-ray fluorescent analysis (XRF) -- Catchments -- Chemical elements -- Fluorescence spectroscopy -- Lakes -- Synchrotron radiation -- Bottom sediments -- Extraterrestrial origin -- Micro-particles -- Sediment core -- Synchrotron radiation X-ray fluorescence -- Tunguska -- Water catchment -- Sediments -- chemical element -- explosion -- lacustrine deposit -- radionuclide -- sediment core -- terrigenous deposit -- wildfire -- Russian Federation -- Tunguska
Аннотация: Abstract: An anomalous layer enriched with chemical elements indicating the presence of terrigenous matter was discovered in the sediment core of Zapovednoe Lake located 60 km from the epicenter of the Tunguska event (1908) using synchrotron radiation X-ray fluorescence spectroscopy (SR–XRF). Radioisotope measurements indicate that the age of the layer is consistent with the date of the catastrophe. Apparently, the anomalous layer was formed as a result of an intense terrigenous matter inflow from the water catchment area due to massive forest falls and subsequent wildfires caused by the Tunguska event. Thus, it is established that targeted searches for microparticles of extraterrestrial origin can be carried out in the discovered and dated anomalous bottom sediment layer. © 2020, Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Tungusskii State Nature Reserve, Krasnoyarsk, 648490, Russian Federation
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
Kurchatov Institute National Research Center, Moscow, 123182, Russian Federation

Доп.точки доступа:
Darin, A. V.; Rogozin, D. Y.; Meydus, A. V.; Babich, V. V.; Kalugin, I. A.; Markovich, T. I.; Rakshun, Y. V.; Darin, F. A.; Sorokoletov, D. S.; Gogin, A. A.; Senin, R. A.; Degermendzhi, A. G.

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