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GEOLOGIC CHARACTERISTICS AND EMPLACEMENT MECHANISM OF THE LYUSHAN GRANITE IN LIAONING PROVINCE |
WANG Xuan |
Liaoning Institute of Geological Survey, Shenyang 110031, China |
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Abstract The Lyushan intrusive bodies are located in the east part of Tianshan-Xingan-Mongolia orogenic belt on the northern margin of the North China plate, generally trending in NNE direction. The interaction between North China plate and Jiamusi-Mongolia plate in early stage probably provides heat and space for the formation of the rock bodies. The later interaction between the North China plate and the Pacific plate makes the final emplacement of magma. In the early compression stage, the orogeny makes thickened crust. Then, the stretching process, with delamination performed by mantle heat, makes the crust thinning, forming the Lyushan metamorphic core complex and the fault basins in the east and west sides.
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Received: 21 November 2012
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[1] |
CHEN Hui-jun, CUI Tian-ri, QIAN Cheng, LI Lin-chuan, CHEN Jing-sheng, LI Wei, WU Xin-wei, JIANG Bin, SI Qiu-liang, QIN Tao, TANG Zhen, ZHANG Yu-jin, GUO Wei. ZIRCON U-Pb GEOCHRONOLOGY OF BASHENGHE PLUTON IN NORTHERN DAXINGANLING MOUNTAINS: Geological Implications[J]. GEOLOGY AND RESOURCES, 2019, 28(5): 405-412. |
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