摘要
基于柴达木盆地北缘绿草山煤矿以南地区地质找矿工作开展的二维地震、可控源音频大地电磁测深、重力及钻探成果资料的整理分析,梳理了研究区煤系和煤层的赋存规律,分析了中侏罗统含煤地层石门沟组和大煤沟组的分布范围,得出煤系和煤层的赋存受构造影响强烈,主要受北西向和北东东向2组断裂控制,2组断裂将研究区侏罗系中统含煤地层切割为不同埋藏深度的断陷区块。通过分析区内构造对煤系和煤层赋存的影响,将研究区侏罗系中统含煤地层划分为5个埋深不同的断块区,并对各断块区煤系和煤层的埋深进行了分析和预测,认为Ⅱ号断块区煤层赋存深度在1 200 m以浅,可作为今后寻找煤炭资源的重点区段。
Based on the previous data analysis of 2D seismic exploration,controlled source audio-frequency magneto telluric,gravity and drilling results,the authors teased out the coal series and coal seam occurrence regularity,and analyzed the distribution range of the Shimen Formation and the Dameigou Formation in Middle Jurassic coal-bearing strata. It was considered that the coal and coal seam occurrence is strongly influenced by structure,which are controlled by the NW and NEE trending faults obviously,and the NW and NEE trending faults divided the Jurassic middle coal bearing strata in the study area for different buried depth of fault block. Through the analysis of structure influence on the coal series and coal seam,the Middle Jurassic coal-bearing strata in the study area is divided into five different buried depth of fault block,through analysis and prediction,it was proposed that the coal seam occurred in the 1 200 m shallow depth in Ⅱ fault block area can be selected as the key section of prospecting for coal resources.
出处
《能源与环保》
2017年第7期46-50,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
青海省地质勘查基金项目(2016020107kc069)
关键词
侏罗系中统
赋煤规律
逆冲推覆
断陷区块
绿草山煤矿
the Middle Jurassic
coal occurrence regularity
thrust nappe
fault block area
Lücaoshan Coal Mine
作者简介
云启成（1987-）,男,青海西宁人,工程师,2010年毕业于中国矿业大学,现从事煤田地质研究和项目技术管理工作.
