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

Kotov A B<sup>*</sup>; Skovitina T M; Kovach V P; Velikoslavinsky S D; Lopatin D V; Sklyarov E V; Tolmacheva E V; Bobrovskaya O V

doi:10.1134/S1028334X17070224

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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

作者：Kotov A B^*; Skovitina T M; Kovach V P; Velikoslavinsky S D; Lopatin D V; Sklyarov E V; Tolmacheva E V; Bobrovskaya O V

来源：Doklady Earth Sciences, 2017, 475(1): 758-761.

DOI：10.1134/S1028334X17070224

摘要

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.