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Re–Os Age of Molybdenite from the Daheishan Mo Deposit in the Eastern Central Asian Orogenic Belt,NE China |
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| Authors: | Chunming Han Wenjiao Xiao Brian F Windley Guochun Zhao Bexun Su Songjian Ao Jien Zhang Zhiyong Zhang Bo Wan Bin Cui Wenjun Qu Andao Du |
| Institution: | 1. State Key laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, , Beijing, China;2. Department of Geology, University of Leicester, , Leicester, UK;3. Department of Earth Sciences, The University of Hong Kong, , Hong Kong, China;4. China University of Geosciences, , Beijing, China;5. National Research Center of Geoanalysis, , Beijing, China |
| Abstract: | The Daheishan Mo deposit is located in the eastern part of the Central Asian Orogenic Belt, NE China. Rhenium and osmium isotopes of molybdenites from the Daheishan deposit were used to determine the age of mineralization. Rhenium concentrations in molybdenite samples are between 17 and 30μg g?1. Analysis of seven molybdenite samples yields an isochron age of 168.0 ± 4.4 Ma (2σ). Based on the geological history and spatial‐temporal distribution of the granitoids, it is proposed that the Mo deposits in eastern China were related to the subduction of the Paleo‐Pacific plate during Jurassic time. |
| Keywords: | Daheishan Mo deposit Re– Os study the Central Asian Orogenic Belt |