Age of the «cross-laminated sandy» stratum from the reference section Yar Sredny (Central Kamchatka) according to the paired 230Th /238U and 14C dating of peat

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Abstract


For the first time, numerical radioisotope age were obtained for the “cross-laminated sandy” stratum, which is widespread in Neopeopleistocene reference sections of loose sediments from Central Kamchatka. Two peat layers, incorporated in the “cross-laminated sandy” stratum of the Yar Sredny, were studied. The results of their paired 230Th/238U and 14C dating are in good agreement with each other. According to the dating results, it was determined that the “cross-laminated sandy” stratum was deposited, apparently, in the range of about 50-40 thousand years ago, i.e. in the Late Pleistocene (MIS-3), and not in the Middle Pleistocene, about 400-300 thousand years ago, as previously thought.


About the authors

F. E. Maksimov

Saint-Petersburg State University

Author for correspondence.
Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

M. M. Pevzner

Geological Institute of the Russian Academy of Sciences

Email: maksimov-fedor@yandex.ru

Russian Federation, 7, Pyzhevsky lane, Moscow, 119017

A. Yu. Petrov

Saint-Petersburg State University

Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

S. B. Levchenko

Saint-Petersburg State University

Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

V. A. Grigoriev

Saint-Petersburg State University

Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

N. G. Baranova

Saint-Petersburg State University

Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

V. Yu. Kuznetsov

Saint-Petersburg State University

Email: maksimov-fedor@yandex.ru

Russian Federation, 7/9, Universitetskaya embankment, Saint-Petersburg, 199034

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