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Geochemical Features of Annual Layers of Bottom Sediments of Freshwater Lakes, Studied via Synchrotron Radiation–Induced XRF Microanalysis / A. V. Darin [et al.] // Bull. Russ. Acad. Sci. Phys. - 2019. - Vol. 83, Is. 11. - P1437-1440, DOI 10.3103/S106287381911008X
. - ISSN 1062-8738
Кл.слова (ненормированные):
Catchments -- Geochemistry -- Lakes -- Lithology -- Microanalysis -- Synchrotron radiation -- Synchrotrons -- Bottom sediments -- Extraterrestrial origin -- Fresh water lakes -- Geochemical features -- Geochemical indicators -- Lake sediments -- Layer boundaries -- Micro-particles -- Sediments
Аннотация: Abstract: The possibility of distinguishing layer boundaries through lithological and geochemical indicators (Rb/Sr ratio) is shown by a case study of bottom sediments from Lake Kucherlinskoe (Altai). Based on the data from scanning synchrotron radiation–induced XRF microanalysis and isotope studies, a record of the Tunguska event of 1908 is found in the bottom sediments of Lake Zapovednoye, forty kilometers from the explosion’s epicenter. An anomalous layer in the sediments is associated with an increase in the terrigenous drift in the catchment area due to massive forest outfall and subsequent fires. The possibility of a targeted search for microparticles of extraterrestrial origin in lake sediments is demonstrated. © 2019, Allerton Press, Inc.
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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch, of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Tungusky State Nature Reserve, Vanavara, 648490, Russian Federation
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Science, Novosibirsk, 630090, Russian Federation
Доп.точки доступа:
Darin, A. V.; Babich, V. V.; Kalugin, I. A.; Markovich, T. I.; Rogozin, D. Y.; Meidus, A. V.; Darin, F. A.; Rakshun, Y. V.; Sorokoletov, D. S.
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