青海东北部木里煤田江仓矿区构造特征及其对煤系地层、煤层的控制  

The Structure Characteristics of Jiangcang District in Muli Coal Field of Qinghai and There Control on Coal System and Coal Seam

作　　者：宋维刚[1] 宋生春[1] 董琳[1] 魏小林[1] 贾成财[1] 崔明[1] 

机构地区：[1]青海省地质调查院,青海西宁810012

出　　处：《西北地质》2008年第3期79-85,共7页Northwestern Geology

基　　金：青海省国土资源厅重点勘查项目"青海省木里煤田江仓矿区补充详查"(1212010330116)

摘　　要：江仓矿区位于青海省东北部,是木里煤田中最大的矿区,通过多年地质工作,在矿区构造特征和构造对煤系地层的控制研究方面积累了丰富的资料。笔者通过对江仓矿区构造特征的研究,试图对整个木里煤田及其他矿区相似构造环境下的地质勘探工作提供一些可借鉴的思路。江仓矿区煤系地层构造形态为北陡南缓的不对称向斜构造,该构造控制了煤系地层及煤层的延深。矿区内发育近东西向、北西-南东向及北东向三组断裂构造。其中,近东西向断裂是控制煤系地层的主要构造,江仓向斜南北两翼的浅部均被该方向压扭性或压性断层切割,大部分地段成为矿区南部和北部的自然边界。矿区构造控煤特征明显。Jiangcang district is located in the northeast of Qinghai. It is the biggest mineral area in Muli coal field. After several years of geological work, we have collected abundant data on the structure characteristic and their control on the coal system. The structure of Jiangcang mineral area is north-steep south-slow dissymmetry syncline structure. It controls the extension of coal system and coal seam. There are three tectonic faults which are oriented east-west, northwest-southeast and northeast. The east-west fault is the main structure controlled coal system. Direction faultage penetrates the shallow portion of the south and north limbs of the syncline, That becomes the nature boundary of the south and north mining field. The coal strata is clearly controlled by tectonics.

关 键 词：江仓矿区 构造特征 煤系地层和煤层的控制 

分 类 号：P618.11[天文地球—矿床学]