gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2017-8-3-0260gtcrust-401Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSLATE MESOZOIC GRANITOIDS OF THE WESTERN TRANSBAIKALIA (RUSSIA) AND THEIR RELATION TO FORMATION OF METAMORPHIC CORE COMPLEXESLATE MESOZOIC GRANITOIDS OF THE WESTERN TRANSBAIKALIA (RUSSIA) AND THEIR RELATION TO FORMATION OF METAMORPHIC CORE COMPLEXESDonskayaT. V.DonskayaT. V.

Irkutsk

Irkutsk

GladkochubD. P.GladkochubD. P.

Irkutsk

Irkutsk

MazukabzovA. M.MazukabzovA. M.

Irkutsk

Irkutsk

WangT.WangT.

Beijing

Beijing

Institute of the Earth’s Crust, Siberian Branch of RASРоссияInstitute of the Earth’s Crust, Siberian Branch of RASRussian FederationInstitute of Geology, Chinese Academy of Geological Sciences; Beijing SHRIMP Center, Chinese Academy of Geological SciencesКитайInstitute of Geology, Chinese Academy of Geological Sciences; Beijing SHRIMP Center, Chinese Academy of Geological SciencesChina20171110201783451453Copyright © Donskaya T.V., Gladkochub D.P., Mazukabzov A.M., Wang T., 20172017Donskaya T.V., Gladkochub D.P., Mazukabzov A.M., Wang T.Donskaya T.V., Gladkochub D.P., Mazukabzov A.M., Wang T.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/401

Early Cretaceous metamorphic core complexes (MCCs) are widespread in North-East Asia and indicate a large-scale crustal extension in this area [Wang et al., 2011, 2012]. Traditionally one of the formation mechanisms of MCCs is related to various magmatic activities including granitoid magmatism [Anderson et al., 1988, Hill et al., 1995; Lister, Baldwin, 1993]. Wang et al. [2012] have subdivided the intrusion associated with MCCs in NE Asia into pre-kinematic (~170–140 Ma), syn-kinematic (~150–125 Ma) and post-kinematic (~125–110 Ma). 40Ar/39Ar biotite and hornblende ages of 140–110 Ma are overlapping for all MCCs of NE Asia and represent the time of the final stage of the MCCs formation [Wang et al., 2012]. Here, we present overview of geochronological and geochemical data for Late Mesozoic granitoids of the Western Transbaikalia and our view on their role in formation of Transbaikalian MCCs.

Early Cretaceous metamorphic core complexes (MCCs) are widespread in North-East Asia and indicate a large-scale crustal extension in this area [Wang et al., 2011, 2012]. Traditionally one of the formation mechanisms of MCCs is related to various magmatic activities including granitoid magmatism [Anderson et al., 1988, Hill et al., 1995; Lister, Baldwin, 1993]. Wang et al. [2012] have subdivided the intrusion associated with MCCs in NE Asia into pre-kinematic (~170–140 Ma), syn-kinematic (~150–125 Ma) and post-kinematic (~125–110 Ma). 40Ar/39Ar biotite and hornblende ages of 140–110 Ma are overlapping for all MCCs of NE Asia and represent the time of the final stage of the MCCs formation [Wang et al., 2012]. Here, we present overview of geochronological and geochemical data for Late Mesozoic granitoids of the Western Transbaikalia and our view on their role in formation of Transbaikalian MCCs.

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The authors declare that there are no conflicts of interest present.