青海木里煤田构造分带性特点及赋煤规律  

Structural Zonality and Coal Hosting Pattern in Muri Coalfield,Qinghai

作　　者：孙军飞[1] 孙红波[1] 张发德 曹代勇[1] 

机构地区：[1]煤炭资源与安全开采国家重点实验室(中国矿业大学北京),北京100083 [2]青海煤炭地质勘查院,青海西宁81001

出　　处：《中国煤炭地质》2009年第8期9-11,63,共4页Coal Geology of China

基　　金：煤炭资源与安全开采国家重点实验室自主研究课题(SKLCRSM08B01);青海省煤炭资源潜力评价课题(青潜评-1)

摘　　要：运用煤田构造及构造控煤分析方法,在系统分析木里煤田构造格局的基础上,提出该区煤田构造具有分带分段的特征,自南向北划分为南、中、北三个构造带,自西向东分为西、中、东三个段,并分别讨论了它们的煤系赋存与地质构造之间的关系。研究认为:木里煤田为一对冲型盆地,在大通山和托莱山的山前地带,逆冲断裂发育强烈,煤层被抬升,埋藏变浅,利于开采,但破坏较为严重;在中部地带,由于受地应力影响较小,含煤向斜保存较为完整,但煤层埋藏较深。Based on systematically analyzed the structural configuration and coal controlling structures in the Muri coalfield, and become conscious of the zonality of the coalfield. Thus south, middle and north three structural belts, west, middle and east three sectors are divided and discussed their relations between coal measures hosting and structures. The study reckoned： the coalfield is a ramp basin, in forelands of the Datong Mountains and Tulai Mountains, thrusting is very strong, coal seams uplifted, buffed depth becomes shallower, in favor to mining, but they are seriously destructed; while in middle part, because of less crustal stress, coalbearing syncline rather be well preserved, but coal seam buried depth is deeper.

关 键 词：木里煤田 煤田构造 赋煤规律 

分 类 号：P618.110.2[天文地球—矿床学]