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SEQUENCE OF PRIMARY SEDIMENTARY STRUCTURES AND SEDIMENTARY ENVIRONMENT FOR THE PERMIAN COAL MEASURES IN THE LULING MINE OF THE HUAIBEI COAL FIELD

LI Yun shan, WEI Er lin(Exploration Engineering Department of Huaibei Mining(Group) Co., Ltd,Huaibei 235000, China)  
Based on observation and research of the primary sedimentary structures closely related to hydrodynamic conditions preserved in sediments, this paper concludes that the Permian coal measures in the Luling Mine of the Huaibei Coal Field formed in fluviation-dominated constructive delta sedimentary environment. It also introduces elementary approaches to the interpretation of sedimentary environment from the sequence of primary sedimentary structures.
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