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New evidence II for MDD model of thermal evolution history of Gangdese batholith
Authors:Wenji Chen  Qi Li  Jie Hao  Xinhua Zhou  Min Sun
Institution:(1) Institute of Geology, China Seismological Bureau, 100029 Beijing, China;(2) Institute of Geology, Chinese Academy of Sciences, 100029 Beijing, China;(3) Department of Earth Sciences, Hong Kong University, Hong Kong, China
Abstract:The cooling curves are obtained using specific40Ar/39Ar stage heating procedure and MDD modeling. In addition to the results of dating hornblende (K-Ar) and apatite (FT), the widespread existence of rapid cooling events has further been confirmed. A new knowledge of the starting time of Gangdese overthrust faulting in the east of Zedang, which was earlier in south and later in north is acquired.
Keywords:Tibet  thermal history  multiple diffusion domain model
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