New data on continental crust age in the western part of the Aldan Shield: Results of Sm–Nd isotopic study of the Cenozoic sand deposits in the Chara and Tokkin Basins


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Abstract

It has been demonstrated on basis of Sm–Nd isotopic analyses of the Cenozoic sands from the Chara and Tokkin Basins in the eastern flank of the Baikal rift zone that the Chara–Olekma Geoblock of the Aldan Shield is an area of intense crust growing processes occurred not only in the Paleoarchaean but in the Mesoarchaean as well.

About the authors

D. V. Lopatin

Institute of Earth Sciences of St. Petersburg State University

Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

E. V. Sklyarov

Institute of the Earth’s Crust, Siberian Branch; Far Eastern Federal University

Email: abkotov-spb@mail.ru
Russian Federation, Irkutsk; Vladivostok

E. V. Tolmacheva

Institute of Precambrian Geology and Geochronology

Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

O. V. Bobrovskaya

Institute of Earth Sciences of St. Petersburg State University

Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

A. B. Kotov

Institute of Precambrian Geology and Geochronology

Author for correspondence.
Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

T. M. Skovitina

Institute of the Earth’s Crust, Siberian Branch

Email: abkotov-spb@mail.ru
Russian Federation, Irkutsk

V. P. Kovach

Institute of Precambrian Geology and Geochronology

Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

S. D. Velikoslavinsky

Institute of Precambrian Geology and Geochronology

Email: abkotov-spb@mail.ru
Russian Federation, St. Petersburg

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