柴北缘全吉煤田侏罗系构造控煤及找煤方向分析  

Analysis of Jurassic structural coal control and coal prospecting direction in Quanji Coalfield of northern margin of Qaidam Basin

作　　者：杨振宁 梁振新 范文科 牛索安东主 陈磊 费得亮 刘文进 黄广楠 张启富 丁圆圆 Yang Zhenning;Liang Zhenxin;Fan Wenke;Niu Suoandongzhu;Chen Lei;Fei Deliang;Liu Wenjin;Huang Guangnan;Zhang Qifu;Ding Yuanyuan(105 Exploration Team of Qinghai Coal Geology,Xining 810007,China;Qinghai Provincial Geological Survey Bureau,Xining 810001,China)

机构地区：[1]青海煤炭地质一〇五勘探队,青海西宁810007 [2]青海省地质调查局,青海西宁810001

出　　处：《能源与环保》2023年第12期136-141,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：青海省省级地质勘查专项资金项目(2023085030ky005)。

摘　　要：全吉煤田是柴达木盆地北缘重要的煤炭产地,大煤沟煤矿、绿草山煤矿是煤田内代表性煤矿,侏罗纪含煤地层及煤层出露较好、埋深较浅,已开采多年。多年的勘查和全吉山整装勘查工作,全吉煤田浅部,特别是地表出露地段已基本查明,但大部分地段为隐伏区,加之全吉煤田构造复杂,目前构造控煤是困扰全吉煤田实现找矿突破的问题,需进一步加强对构造的研究,提高构造对煤层赋存及埋藏深度影响的认识。在分析全吉煤田侏罗系沉积演化及聚煤模式研究、构造演化特征的基础上,总结了全吉煤田典型构造控煤样式,并指出了全吉煤田侏罗系今后的找煤方向,以期对全吉煤田,特别是全吉煤田隐伏区找煤工作起到一定的现实指导作用。Quanji Coalfield is an important coal producing area in the northern margin of Qaidam Basin.Dameigou Coal Mine and Lücaoshan Coal Mine are representative coal mines in the coalfield.Jurassic coal bearing strata and coal seams are well exposed and shallow,and have been exploited for many years.After years of exploration and integrated exploration of Quanji Mountain,the shallow part of Quanji Coalfield,especially the exposed section of the surface,has been basically identified,but most of the sections are hidden areas.In addition,the structure of Quanji Coalfield is complex.At present,the structural coal control is a bottleneck problem that plagues Quanji Coalfield to achieve a breakthrough in ore prospecting.It is necessary to further strengthen the study of the structure and improve the understanding of the impact of the structure on the occurrence and burial depth of the coal seams.On the basis of analyzing the sedimentary evolution,coal accumulation model research and structural evolution characteristics of Jurassic in Quanji Coalfield,this paper summarized the typical structural coal control styles of Quanji Coalfield,and pointed out the future coal prospecting direction of Jurassic in Quanji Coalfield,in order to play a practical guiding role in coal prospecting in Quanji Coalfield,especially in the hidden area of Quanji Coalfield.

关 键 词：柴北缘 全吉煤田 侏罗系 构造控煤 找煤方向 

分 类 号：P618.11[天文地球—矿床学]