RUSSIAN JOURNAL OF EARTH SCIENCES VOL. 8, ES2001, doi:10.2205/2006ES000192, 2006

Hercynian structural features in the West Transbaikalia region

¹Geological Institute, Russian Academy of Sciences, Moscow, Russia
²Geological Institute, Siberian Division of the Russian Academy of Sciences, Ulan-Ude, Russia
³"Buryat Geologiya" Geological Survey, Ulan-Ude, Russia

Abstract

[1]  This paper presents new data for the structure and age of the Paleozoic rocks in the Ikat-Bagdarin zone of the West Transbaikalia region. Reported for the first time is the wide development of various Devonian and Carboniferous rocks. A model is proposed for the tectonic evolution of this structural zone, based on the view that the Tocher rift basin began to form during the Late Devonian in the Caledonian basement and was completed during the Late Carboniferous-Early Permian in connection with the formation of the nappe-fold structure of the region and with the intrusion of the Angara-Vitim batholith granites.

Received 15 June 2005; revised 10 August 2005; accepted 15 January 2006; published 25 April 2006.

Keywords: Tectonics, continental crust, accretion, Transbaikalia.

Index Terms: 3040 Marine Geology and Geophysics: Plate tectonics; 3099 Marine Geology and Geophysics: General or miscellaneous; 8038 Structural Geology: Regional crustal structure; 8108 Tectonophysics: Continental tectonics: compressional; 9320 Geographic Location: Asia.

Citation: Ruzhentsev, S. V., O. R. Minina, V. A. Aristov, and Yu. P. Katyukha (2006), Hercynian structural features in the West Transbaikalia region, Russ. J. Earth Sci., 8, ES2001, doi:10.2205/2006ES000192.