宁东煤田控煤构造特征与发育规律研究  

Study on Coal Controlling Structural Features and Development Pattern in Ningdong Coalfield

作　　者：毛兴军 刘金科 余永鹏 马永祥 黄鹏程 Mao Xingjun;Liu Jinke;Yu Yongpeng;Ma Yongxiang;Huang Pengcheng(Ningxia Coal Geological Exploration Institute,Yinchuan,Ningxia 750002;Ningxia Bureau of Coal Geology,Yinchuan,Ningxia 750002)

机构地区：[1]宁夏回族自治区煤炭地质勘查院,银川750002 [2]宁夏回族自治区煤炭地质局,银川750002

出　　处：《中国煤炭地质》2020年第12期22-26,共5页Coal Geology of China

摘　　要：宁东煤田地处鄂尔多斯盆地西缘,属稳定块体与活动带之间的过渡地区。通过研究分析将宁东煤田在东西向上划分为鄂尔多斯盆地西缘褶皱逆冲带和鄂尔多斯陆内盆地;提出了宁东煤田具有东西分区、南北分带的基本构造格局特征,将宁东煤田划分为贺兰山逆冲推覆构造体系和六盘山东麓逆冲推覆构造体系;通过对区域断裂和各矿区断层要素资料统计分析,得出宁东煤田南部地区发育北西—北北西向断裂,北部地区发育近南北向以及北东向断裂,中部地区三组断裂均有发育;在此基础上建立了宁东煤田赋煤构造单元划分方案,研究了控煤构造特征与发育规律。The Ningdong coalfield is situated in western margin of Ordos Basin,a transition zone between stable block and mobile belt.Through analytic study has partitioned the coalfield into Ordos Basin western margin folded thrust zone and Ordos intracontinental basin from west to east;proposed the coalfield can be partitioned into EW regions and NS belts fundamental structural features.The paper has partitioned the coalfield into Helan Mts.thrust nappe structural system and Liupan Mts.eastern piedmont thrust nappe structural system.Through data statistical analysis of regional fault and mine areas fault essential factors have worked out structural fundamental features:in the coalfield southern area is mainly NW-NNW faults,northern area near NS and NE faults,middle area three groups fault all developed.On this basis have established Ningdong coalfield coal-bearing structural unit partition scheme,studied coal-bearing structural features and development pattern.

关 键 词：控煤构造 发育规律 宁东煤田 鄂尔多斯盆地 

分 类 号：P618.110.2[天文地球—矿床学]