四股泉矿区推覆构造特征研究  

Study of Nappe Tectonic Characteristics in Siguquan Mining Area

作　　者：张晓翼 马丽[2,3] 高阳 

机构地区：[1]中国煤炭地质总局物探测量队,河北邢台054000 [2]国土资源部煤炭资源勘查与综合利用重点实验室,西安710026 [3]陕西省煤田地质集团有限公司,西安710026

出　　处：《煤炭技术》2018年第2期120-123,共4页Coal Technology

基　　金：陕西省科技统筹项目(2016FWPT-16);国土资源部煤炭资源勘查与综合利用重点实验室项目(ZZ2016-2)

摘　　要：四股泉矿区的复杂构造给地勘工作和煤炭生产带来了极大的困扰。通过对大量物探、地质资料的对比,对区内煤层沉积环境及构造变形特征深入理解,认为四股泉井田主要以逆压推覆构造为主,在地质剖面上表现为连续叠瓦式逆冲断层,主体由断坡和断坪组成,根带和锋带均趋于合为一个断层面,逆冲能量由西南向北东减弱。在井田范围内,由TF1与TF2这2条逆掩断层将地层由下至上分成A、B、C 3个构造体,造成煤系地层沿逆冲断裂带呈带状重复出现,增加了煤炭资源量,也导致了井田构造形态的复杂化。The complex structure of the Siguquan mining area has brought great trouble to thegeological prospecting work and coal production. Through the comparison of a large number ofgeophysical prospecting geological data and the analysis of the sedimentary environment and thetectonic deformation characteristics of the coal in the area, the Siguquan mining area are mainly formedby thrusting. On the seismic sections , and the showed as a continuous stack of thrust faults in theprofile, by the broken slope and broken flat composition, the root zone and the front zone all tend tobe a fault plane. The reverse energy is reduced from the southwest to the northeast, and the A, B and Cthree structures are formed from the bottom to the top, the formation of coal bearing strata in the coalmeasure strata caused by the inverse of TF1 and TF2 two is a zonal repetitive appearance along thethrust fault zone, increase the amount of coal resources, but also led to a minefield structuralcomplexity.

关 键 词：逆冲推覆构造 构造变形特征 控煤构造样式 

分 类 号：P56[天文地球—构造地质学]