新疆侏罗纪煤田构造样式及其控煤效应

摘要

Xinjiang region has abundant Jurassic coal resources,but its exploration and developing degree are much lower,so one systematic research on its coalfield structural distribution pattern and structural styles is necessary.Based on the tectonism dynamic characteristics of main coal basin,through the analysis and research on years of regional geology and coalfield exploration data,this paper divided the coal-controlled tectonic in Xinjiang region into four structural patterns:Compression,Extension,Torsion and Invertion.Based on this division,also according to the geometric and kinematic features of coal-controlled structural association,this paper divided the Xinjiang coal-controlled structure further into six subgroups and 18 patterns,in which,the Imbricated Thrust Structure,Nappe Detachment Structure,Fold Structure and Strike Slip Structure have main control actions on coal measures,seam preserving status and mining geological conditions.%新疆侏罗纪煤炭资源丰富,但勘查开发程度较低,需对煤田构造展布规律、构造样式及其控煤效应进行系统研究以指导煤炭勘查开发.通过对多年来区域地质和煤田勘探资料的分析研究,根据主要赋煤盆地构造变形的动力学特征,将新疆控煤构造划分为挤压、拉张、扭动、反转4大类构造样式,在此基础上,又根据控煤构造组合的几何学、运动学特征,进一步划分为6个亚类和18种型式,对煤系、煤层赋存状态以及煤层开采地质条件具有主要控制作用的构造样式为叠瓦式逆冲构造、推覆式滑脱构造、褶皱构造和走向滑动构造.