山西朔州金海洋矿区含煤岩系沉积环境研究  

Study on Sedimentary Environment of Coal Measures in Shanxi Shuozhou Jinhaiyang Mining Area

作　　者：张海涛[1] 朱炎铭[1] 王义海[1] 蔡图[1] 王怀勐[1] 张建胜[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《煤炭科学技术》2013年第2期104-107,共4页Coal Science and Technology

摘　　要：为掌握金海洋矿区煤层多、厚度变化大的煤层展布规律,通过对矿区276个钻孔测井、岩心资料分析并进行粒度统计和元素测试,结果表明:该矿区主要发育障壁海岸、浅水三角洲和河流湖泊3种沉积体系,障壁岛、泻湖、潮坪、沼泽、三角洲、河流、湖泊7种沉积相类型,相带南北分异、东西展布;成煤期间多次海侵,受此影响,9号、11号煤发育连续,煤层测井高峰窄频峰值较多,夹矸数一般大于4,其他煤层发育不稳定,尖灭缺失;11号煤西厚东薄、北厚南薄,均厚3.69 m,9号煤西薄东厚,东部分叉,均厚6.78 m;太原组煤中V、Mn、U、P、Fe、S等元素含量均比山西组高,与沉积相展布相适应。In order to analyze the seam distribution law with multi seams and thickness variation in Jinhaiyang Mining Area, there were 276 horehole loggings and core information of the mining area analyzed and the particle statistics and the element measurement were conducted. The results showed that there were three sedimentary systems mainly including the developed barrier coast, shallow water delta, river and lakes in the mining area.There were seven sedimental7 facies types of the barrier islands, lagoon, tidal flat, marsh, delta, river and lakes.The facies belt was different in north and south and was expanded and distributed in east and west. During the coal formation period, several transgressions were occurred.Due to the influences, No. 9 and No. 11 seams were developed continuously and high peaks and narrow fi＇e- queney peaks were occurred many times in the seam loggings.There were over 4 partings generally occurred in the seams.Other seams were developed unstable and pinched out or lost.As for No. 11 seam, the west part would be thick and the east part would be thin, the north part would be thick and the south part would be thin, and the average thickness would be 3.69 re.As for No. 9 seam, the west part would be thin and the east part would be thick,the east seam would be forked and the average thickness of No. 9 seam would be 6.78 man the Taiyuan Formation,V,Mn,U,P,Fe,S and other elements content of the coal would be higher than Shanxi Formation and would be similar to the sedimentary facies in expansion and distribution.

关 键 词：含煤岩系 沉积相 沉积环境 测井曲线 

分 类 号：P618.11[天文地球—矿床学]