摘要
青海鱼卡矿区三井田煤层结构复杂,鱼卡矿区三井田含煤地层主要发育冲积扇、辫状河以及曲流河三类沉积相。大煤沟组一段沉积期主要以冲积扇相发育为主,大煤沟组二段沉积期主要发育辫状河相,石门沟组一段沉积期主要发育曲流河相,通过对典型钻孔ZK38-2沉积相划分及走向上钻孔之间的沉积相对比研究,对井田内煤层对比研究具有实际意义。
The coal seam structure of the third mine field in Yuqia mining area is complex.Alluvial fan,braided river and meandering river facies mainly develo in the coal-bearing strata of No.3 mine field.The sedimentary period of the first member of Dameigou Formation is dominated by alluvial fan facies,the second member of Dameigou Formation mainly develops braided river facies,and meandering river facies prevails during the sedimentary period of the first member of Shimengou Formation.Through the study of sedimentary facies division of typical borehole ZK38-2 and the comparison of sedimentary facies between boreholes,it has practical signi ficance for the comparative study of coal seams in the mine field.
作者
赵宇星
Zhao Yu-xing(Ningxia Coal Geological Survey Institute,Ningxia Yinchuan 750011)
出处
《山东煤炭科技》
2020年第1期157-159,共3页
Shandong Coal Science and Technology
关键词
大煤沟组含煤段
石门沟组含煤段
沉积相类型
含煤地层
coal-bearing section of Dameigou Formation
coal-bearing section of Shimengou Formation
types of sedimentary facies
coal-bearing stratum
