摘要
通过构造控煤分析方法并根据后期控煤构造几何形态特征及形成机制,将山西控煤构造划分为:挤压构造组合、伸展构造组合、反转构造组合3大类及8种控煤构造样式,其形成机制为以挤压作用为背景的多期构造活动叠加,后期部分地区发生拉张与走滑,在一些地区还存在因局部应力场改变而产生的变形。煤系赋存特征与控煤构造样式关系紧密,挤压样式中,断裂控煤构造的煤系受构造破坏显著,煤系赋存范围相对较小;褶皱及大型堑垒控煤构造样式,其煤系赋存稳定,可形成大面积聚煤盆地。
Using the structural coal-control analytical method, according to the geometry of the succeeding coal-control structural features and formation mechanism in Shanxi province,the coal-control structural patterns were classified into three main combination types：com- pressional structures combination, contracting structure combination, and inversion structure combination, then subdivided into eight coal-control structural patterns. The formation mechanism is mainly compressions, complemented by local extensional or strike-slip ac- tions in multi-phase tectonic superposition,in some places existed deformations generated by local stress field changing. The relation be- tween coal measures hosting features and coal-control structural pattern is very close. When the reverse thrust combination is the main coal-control structural pattern, coal measures are obviously destructed by structures and only have smaller hosting extent;while the fold and graben is the main pattern,coal measures hosting is stable and may form large coal basin.
出处
《中州煤炭》
2015年第9期94-96,共3页
Zhongzhou Coal
基金
国家自然基金资助项目(41872105)
河南省教育厅科学技术研究重点项目(13A170011)
关键词
煤炭资源
控煤构造样式
赋煤规律
coal resource
coal-control structural pattern
coal occurrence law
