摘要
通过分析威宁观风海勘查区1/1万地质填图、钻探及煤层对比资料,本文该区构造变形特征及控煤作用进行了研究。研究结果表明:(1)研究区构造行迹可分4期构造变形序列,形成先后顺序为近SN向构造、NE向构造、NW向构造和近EW向构造;(2)该区构造控煤类型主要为褶断型和断夹块型,早期近东西向的挤压使勘查区煤层埋深变浅,后期的NE向构造和NW向构造使煤层埋深加深,同时破坏了煤层的完整性。
Based on the analysis of 1/10000 geological mapping,drilling and coal seam correlation data in Weining,Guanfenghai exploration area,this paper studied the structural deformation features and coal control action in this area.The results showed that:1.the structural trace of the study area can be divided into four stages of the structural deformation sequence,and its sequence of formation is near SN structure,NE structure,NW structure and near EW structure;2.the types of structural coal control in the area are mainly fault-fold type and fault clip block type.The joint action of near SN reverse fault and fold decreased the burial depth of the coal seam in the exploration area.Later NW structure and EW structure increased the burial depth of the coal seam,and destroyed the integrity of the coal seam.
作者
周正怡
ZHOU Zheng-yi(Geological Survey and Research Institute of Guizhou Coalfield Geological Bureau,Guiyang 550008,Guizhou,China)
出处
《资源信息与工程》
2020年第3期29-31,共3页
Resource Information and Engineering
关键词
观风海勘查区
构造特征
构造控煤
Guanfenghai exploration area
structural features
structural coal control
