依兰矿区老第三纪达连河组聚煤环境及聚煤规律  

Coal-Forming Environmental Analysis of Dalianhe Formation,Paleogene in Yilan Mining Area

作　　者：舒正文[1] 

机构地区：[1]黑龙江省佳木斯市国土资源局,黑龙江佳木斯154002

出　　处：《中国煤田地质》2006年第3期20-22,共3页Coal Geology of China

摘　　要：通过对依兰矿区地质背景和老第三纪含煤地层沉积特征的综合分析,认为该区含煤段古地理类型主要为冲积扇—扇三角洲平原—滨浅湖环境。在初期填平补齐作用后,形成了具有工业价值的达连河组下含煤段的上、中、下三个煤层群。Through an integrated analysis of geological setting and Paleogene coal-bearing strata sedimentary characteristics, the author considered that the coal-bearing section＇s paleogeographic type in the area is mainly alluvial fan - fan-shaped delta plain - littoral shallow lake environment. After initial stage filling up and leveling, swamping had happened in vast low and flat flood plains, provided with favorable sites for peat accumulation. In this way formed upper, middle and lower three mineable coal seam groups in the lower Dalianhe Formation.

关 键 词：老第三纪 聚煤环境 聚煤模式 依兰煤田 

分 类 号：P618.110.2[天文地球—矿床学] P542.3[天文地球—地质学]