CAJ | 학술논문

榆中盆地是一个较为独立的、边缘由断裂构造控制的中、新生代陆内盆地，基底为前寒武系变质岩，盆内含煤地层为中侏罗统阿干镇组，为河流相沉积体系；含煤地层及煤层赋存主要受断裂构造控制，控煤构造样式主要有逆冲叠瓦型、背斜-断裂组合、半地堑型。通过对榆中盆地的地质条件进行研究，结合以往的找煤成果，该区找煤方向主要应以逆冲断层的上盘和正断层的下盘为主，推断在盆地的东南缘和羊寨拗陷为煤炭资源的有利地段，也是今后进行煤田地质勘探的重点区域。
유중분지시일개교위독립적、변연유단렬구조공제적중、신생대륙내분지，기저위전한무계변질암，분내함매지층위중주라통아간진조，위하류상침적체계；함매지층급매층부존주요수단렬구조공제，공매구조양식주요유역충첩와형、배사-단렬조합、반지참형。통과대유중분지적지질조건진행연구，결합이왕적조매성과，해구조매방향주요응이역충단층적상반화정단층적하반위주，추단재분지적동남연화양채요함위매탄자원적유리지단，야시금후진행매전지질감탐적중점구역。
The Yuzhong Basin is a rather independent Mesozoic-Cenozoic intracontinental basin with faulted structure controlled mar-gin. Basement is Precambrian metamorphic rocks;coal-bearing strata belong to the middle Jurassic Aganzhen Formation, a fluvial sedi-mentary system. Coal-bearing strata and hosting of coal seams are controlled mainly by faulted structures. Coal controlling structural patterns mainly have thrusting imbricate, anticline-fault assemblage, semigraben types. Through study on geological conditions in Yu-zhong Basin, combined with previous coal prospecting results have considered that the orientation of coal prospecting should give priori-ty to hanging wall of thrusts and footwall of normal faults. It is deduced that the southeastern margin of the basin and the Yangzhai de-pression are coal resources advantageous sectors, also the key areas to carry out coal geological exploration henceforth.