Abundances and isotopic compositions of rhenium and osmium in pyrite samples from the Huaibei coalfield,Anhui, China |
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| Authors: | Guijian Liu Chen-Lin Chou Zicheng Peng Gang Yang |
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| Institution: | (1) CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, People’s Republic of China;(2) State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi’an, 710075, Shaanxi, People’s Republic of China;(3) Illinois State Geological Survey (Emeritus), Champaign, IL, USA;(4) School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, People’s Republic of China |
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| Abstract: | Two pyrite samples from the Shihezi Formation (Lower Permian), Huaibei coalfield, Anhui, China, have been analyzed for abundances
and isotopic compositions of rhenium and osmium using negative thermal ion mass spectrometry. The Re–Os ages of the pyrites
are 64.4 and 226 Ma, which are younger than the formation age of the coal seam. The pyrite samples may consist of pyrite formed
at various stages during the history of coal formation. The γOs values of the two pyrite samples are + 17 and + 18, respectively. Such high γOs values are reported for the first time for recycles crustal materials from a sedimentary basin. |
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| Keywords: | Isotopic Composition Rhenium and Osmium Pyrite Huaibei coalfield |
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