Traces of the Tunguska Event (1908) in Sediments of Zapovednoe Lake Based on SR–XRF Data

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S1028334X20060045

Ключевые слова: lake sediments, microelements, synchrotron radiation (sr), tunguska event 1908, x-ray fluorescent analysis (xrf)

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.

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Издание

Журнал: Doklady Earth Sciences

Выпуск журнала: Vol. 492, Is. 2

Номера страниц: 442-445

ISSN журнала: 1028334X

Персоны

Darin A.V (Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia)
Rogozin D.Yu (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
Meydus A.V (Tungusskii State Nat Reserve, Krasnoyarsk 648490, Russia)
Babich V.V. (Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia)
Kalugin I.A. (Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia)
Markovich T.I (Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia)
Rakshun Ya (Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia)
Darin F.A. (Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia)
Sorokoletov D.S. (Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia)
Gogin A.A. (Kurchatov Inst Natl Res Ctr, Moscow 123182, Russia)
Senin R.A. (Kurchatov Inst Natl Res Ctr, Moscow 123182, Russia)
Degermendzhi A.G. (Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia)

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