袁家矿区南段沉积环境与聚煤规律

根据钻孔资料,从岩性、层理、生物化石、煤层等特征分析袁家矿区南段含煤地层沉积环境和聚煤规律。结论为:含煤岩系地层是二叠系上统龙潭组;沉积环境为海陆过渡相;聚煤规律为早期滨湖-泻湖海湾环境、中期泻湖-湖沼环境和晚期滨湖三角洲环境等3个时期成煤。

Sedimentary Environment and Coal Accumulation Law of Southern Section of Yuanjia Mining Area

According to the drilling data,from the charactoristics of rock,bedding,fossils, coal seam est.features,analyzes the sedimentary environment and the coal accumulation law of the southern section of Yuanjia coal mining area.The conclusion is that the coal-bearing rock formation is the Permian Longtan group,the sedimentary environment is the sealand facres,the law of coal accumalation is the early lake-lagoon Gulf environment,the mid-lagoon-lake environment and late lake Delta environment est.three periods as coal formation.