鸡西地区敦密断裂带的展布方向  

Distribution direction of Dunmi fault zone in Jixi area

作　　者：宁良云 王忠兴 周玉珠 Ning Liangyun;Wang Zhongxing;Zhou Yuzhu(The 108th Exploration Team,Heilongjiang Bureau of Coal Geological Exploration,Jixi 158100,China)

机构地区：[1]黑龙江省煤田地质一○八勘探队,黑龙江鸡西158100

出　　处：《黑龙江科技大学学报》2019年第1期76-80,共5页Journal of Heilongjiang University of Science And Technology

摘　　要：为探寻鸡西地区新生界聚煤盆地,利用钻探及二维地震资料绘制地质剖面,分析敦密断裂带的展布方向、落差和位置。结果表明,鸡西地区敦密断裂带主体由两条大体平行沿NE 60°方向展布的主干断裂构成,两条断裂均为向NW倾斜的高角度正断层。由于构造运动,在断裂带上盘形成条带状的断陷带,断陷带内沉积了第四系、富锦组、虎林组、穆棱组和城子河组等含煤系地层;断裂带的下盘控制地貌和山脉的走向,地形波澜起伏,形成太平岭隆起带。断裂带两侧的落差为500～1 500 m。该研究为在敦密断裂带上盘(下降盘)寻找相同类型的聚煤盆地提供了借鉴。This paper seeks to explore Cenozoic coal-accumulating basins in Jixi area.The study involves drawing geological profiles using drilling and two-dimensional seismic data and analyzing the distribution direction,drop,and specific location of Dunmi fault zone.The results show that the Dunmi fault zone in Jixi area is composed mainly of two main faults which are roughly parallel and distributed in the direction of 60 degrees in the northeast and occur as high-angle normal faults inclining northwest;tectonic movement results in the formation of a banded fault depression zone in the wall of the fault zone,in which there occur coal-bearing strata such as quaternary,Fujin,Hulin,Muling and Chengzihe formations;the footwall of the fault zone controls the geomorphology and the direction of the mountains;undulating topography results in the formation of the Taipingling uplift zone;and there is a difference varying from 500 to 1 500 m between the two sides of the fault zone.This study could provide a reference for searching for the same type of coal-accumulating basin in the hanging wall(descending wall)of Dunmi fault zone.

关 键 词：敦密断裂带 展布方向 聚煤盆地 

分 类 号：P618.11[天文地球—矿床学]