【摘要】 辽西彰武—黑山地区是阜新盆地外围重要的找煤远景区。通过对本区野外地质调查和室内地质资料的分析研究,识别出纬向EW构造带、NEE向华夏系构造带和NNE向新华夏系构造带;划分了近EW向、NE与NNE向褶皱-逆冲构造系,以及NW向、NE和NNE向张扭性断裂系;发现了一系列NE-NEE向的逆冲推覆断层、褶皱和被它们分割的岩体组成的逆冲推覆构造;在该逆冲推覆构造体下,发现了早侏罗北票组的煤系露头并圈出了赋煤预测区;指出NNE向新华夏系构造带中的凹陷是本区的找煤重点。更多还原

【Abstract】 Zhangwu-Heishan area in west Liaoning Province is an important perspective area for alternative resources in the periphery of Fuxin Basin.Based on recent work,EW-trending structural belt,NEE-trending Cathaysian structural belt and NNE-trending Neocathaysian structural belt were identified;near-EW-trending fold-thrust tectonic system,NE-and NNE-trending fold-thrust tectonic system,NW-trending extensional-shear fault system,and NE-and NNE-trending extensional-shear fault system were classified in this paper;a series of NE-NEE-trending thrust nappe faults,folds and thrust nappe structures which were composed of block masses separated by them were discovered;the outcrops of coal measure strata of Beipiao Formation of early Jurassic System were found out below this thrust nappe structure and predicting areas of coal occurrence were delineated;the depressed area of NNE-trending Neocathaysian structural belt was thought as the key area for coal searching in this area;and it is significant for coal-searching work in Zhangwu-Heishan area.更多还原