Sedimentary environment of Middle Permian Zhesi Formation in Solon area of Inner Mongolia |
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Authors: | ZHAO Dalin WANG Dehai LV Shicong CHEN Chunhuand ZHAO Yanwei |
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Affiliation: | 1. College of Earth Sciences,Jilin University,Changchun 130061,China; 2. Northeast Branch,Sinopec,Changchun 130062,China; 3. Xinjiang Oilfield Company,CNPC,Urumqi 830000,China |
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Abstract: | Through a sampling analysis of trace elements and REE in the section of Middle Permian Zhesi For- mation in Solon area of Inner Mongolia,it is found that the overall sandstone and mudstone samples are charac- terized by LREE-enrichment. By analysis of the discriminant index of the sedimentary environment,the tectonic setting of Zhesi Formation is determined to be a continental island arc environment. Meanwhile,according to the sedimentary structure and lithology combination,Zhesi Formation is divided into the neritic-bathyal reten- tion-reduction environment as well as the delta front and prodelta sedimentary systems. |
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Keywords: | Permian Zhesi Formation geochemistry sedimentary environment |
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