Tectonic evolution of the Qinling-Tongbai orogenic belt

作     者：WU Yuan-bao~1,ZHENG Yong-fei~2 1.State Key Laboratory of Geological Processes and Mineral Resources,Faculty of Earth Sciences,China University of Geosciences, Wuhan 430074,China 2.CAS Key Laboratory of Crust-Mantle Materials and Environments,School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,China 

会议名称：《中国矿物岩石地球化学学会第13届学术年会》

会议日期：2011年

学科分类：070904[理学-构造地质学] 0709[理学-地质学] 07[理学] 

摘      要：正The Qinling-Tongbai-Dabie-Sulu orogenic belt marks the suture between the North and South China Blocks in Central China,forming one of the most important orogens in the eastern *** are hot controversies about the location and number of sutures and the timing of arc-continent and continent-continent collisions during the convergence between the North and South China *** Dabie-Sulu orogenic belt is characterized by the occurrence of Triassic UHP eclogite-facies metamorphic rocks due to the Triassic continental deep subduction. Thus,the Triassic continent-continent collision is evident in east-central *** the other hand,there are Paleozoic events of arc-continent collision in the Qinling-Tongbai orogenic belt that were overprinted by the Triassic process of continental *** has caused much complexity on the time and location of arc-continent and continent-continent collisions between the North and South China *** present an