Application of sedimentary pyrite in paleo-environment:a case study of Meihe Formation |
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| Authors: | LIU Hang ZHU Jianwei CHEN Jingwu |
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| Institution: | 1. College of Earth Sciences, Jilin University, Changchun 130061, China;2. College of Earth Sciences, Jilin University, Changchun 130061, China;Key Laboratory of Oilshale and Coexistent Energy Minerals of Jilin Province, Jilin University, Changchun 130061, China |
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| Abstract: | The indices related to sedimentary pyrite are widely used in paleo-environmental studies;however its application principles and flaws have not been presented in detail so far , therefore it is necessary to review the controlling factors of them .In this study the authors described the application principles in detail , including py-rite morphology, C/S ratio, DOP, size distribution, sulfur isotope, and further discussed the C-S-Fe system in oil shale in Meihe Formation which indicates oxic or suboxic conditions during oil shale deposition .The concen-tration of TOC and S in the oil shale in Meihe Formation is more than that in background mudstone , and the py-rite formation is limited by sulfate .Therefore studying the indices related to pyrite proves to be of great impor-tance. |
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| Keywords: | sedimentary pyrite paleo-environment indices Meihe Formation |
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