准噶尔盆地南缘下一中侏罗统沉积环境及聚煤规律  

Sedimentary Environment and Coal-accumulation Pattern of the Lower and Middle Jurassic Formation from Southern Margin of Junggar Basin,Sinkiang

作　　者：安庆 马飞宙[2] 

机构地区：[1]新疆煤田地质局161勘探队,新疆乌鲁木齐830009 [2]中国地质调查局,北京100037

出　　处：《新疆地质》2013年第F12期169-175,共7页Xinjiang Geology

摘　　要：在大量野外露头、钻孔资料、测井资料及古生物化石资料基础上，对准噶尔盆地南缘下一中侏罗统含煤地层进行沉积环境分析，认为发育有冲积扇、辫状河、曲流河、三角洲及湖泊沉积体系。聚煤规律分析表明，最优聚煤环境为湖滨及三角洲，对指导本区下一步煤炭勘探具重要意义。Based on the analyses of data about outrops,drills,loggings and palaeophytes,this paper studied the sedimenta- ry environment of the lower and middle jurassic formation.Research indicates that there were alluvial fan-braided-stream- meandering stream-delta-lacustrine depositional system,and finally analyzed the coal accumulation.It is found that the la- custrine and delta are the optimum place for coal accumulation.These results will certainly provide some guidance for the further coal exploration.

关 键 词：准噶尔盆地南缘 下一中侏罗统 沉积环境 聚煤规律 

分 类 号：P534.52[天文地球—古生物学与地层学]