青海绿草沟煤矿控煤断层特征及赋煤规律  

Coal-controlling structural characteristics and the coal-bearing law of Lücaogou coal mine in Qinghai Province

作　　者：刘腾 鲍文广 王雪莹 Liu Teng;Bao Wenguang;Wang Xueying(No.105 Exploration Team,Qinghai Bureau of Coal Geology,Xining 810001,Qinghai,China;Qinghai Coal Geological Exploration Institute,Xining 810001,Qinghai,China)

机构地区：[1]青海煤炭地质一〇五勘探队,青海西宁810001 [2]青海煤炭地质勘查院,青海西宁810001

出　　处：《地质学刊》2024年第3期255-265,共11页Journal of Geology

基　　金：青海省地质勘查基金项目“柴达木盆地北缘绿草山煤矿以南地区地质找矿”(2016020107kc069)。

摘　　要：为进一步查明青海绿草沟煤矿控煤构造特征及赋煤规律,对绿草山地区已开展的地质工作进行整理分析,系统梳理该地区发育的7条控煤断层,详细总结了影响绿草沟煤矿主要可采煤层赋存的地质构造性质及控煤机理。结果表明,绿草沟煤矿大体以F_(3)断层为界划分为东西2个控煤构造区块,东部区块地质构造程度为复杂,西部区块地质构造程度为中等。G_(3)煤层为局部可采的中厚不稳定煤层;G_(2)上、G_(2)下煤层为中厚—巨厚煤层,在东西部区块分别为局部可采的不稳定煤层、较稳定煤层;G_(1)煤层在区内大部分发育,中厚—厚层状,在东部和西部区块分别为大部分可采的不稳定、较稳定煤层;F煤层为发育在F_(1)—F_(2)断层带内局部可采的特厚不稳定煤层。Through the collation and analysis of the geological work carried out in the Lücaoshan area,the seven coal-controlling faults developed in the Lücaoshan area were systematically sorted out,and the geological structure properties and coal-controlling mechanism affecting the occurrence of the main mineable coal seams in the Lücaogou coal mine were summarized in detail.The results indicate that,The Lücaogou coal mine is divided into two coal-controlling structural blocks in the east and west,with the F 3 fault as the boundary.The geological structure of the eastern block is complex,and the geological structure of the western block is medium.The G_(3)coal seam is a medium-thick and locally recoverable unstable coal seam;the G_(2upper) coal seam and the G_(2lower) coal seam are medium-thick and extremely thick coal seams.In the eastern and western blocks,the G_(2upper) coal seam is locally recoverable unstable coal seam and the G_(2lower) coal seam is locally recoverable relatively stable coal seam;the G_(1)coal seam is a medium-thick-thick coal seam developed in most of the region.In the eastern and western blocks,it is mostly recoverable unstable coal seam and relatively stable coal seam,respectively.The F coal seam is an extra-thick and locally recoverable unstable coal seam developed in the F_(1)-F_(2)fault zone.

关 键 词：控煤断层 地质构造 煤层 赋煤规律 青海绿草沟煤矿 

分 类 号：P542.3[天文地球—构造地质学] P618.11[天文地球—地质学]