Abstract

1245 The Bureya–Jiamusi Superterrane is located in the eastern segment of the Central Asian fold belt repre senting one of its main structural elements (Fig. 1). In the north and south, the superterrane is surrounded by folded structures of the Mongol–Okhotsk belt and Solonker zone, respectively; in the west, it borders epi Paleozoic structures of southern Mongolia and the Argun Terrane. The eastern margin of the Bureya–Jia musi Superterrane facing the Pacific Ocean is overlain by Upper Cenozoic sedimentary–volcanogenic sequences. The least studied aspect of this terrane is metasedimentary and metavolcanic rocks of the Amur and Gonzha groups, which are considered as consti tuting its basement.

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