新疆阜康白杨河矿区古构造应力场特征  

Characteristics of Paleotectonic Stress Field in Baiyanghe Mining Area,Fukang,Xinjiang

作　　者：张晓飞[1] ZHANG Xiao-fei(Taiyuan Branch of China United Coalbed Methane Co.ltd, Taiyuan 030000,China)

机构地区：[1]中联煤层气有限责任公司太原分公司,太原030000

出　　处：《科技和产业》2020年第11期236-239,共4页Science Technology and Industry

摘　　要：通过地表构造节理大比例填图,发现新疆阜康白杨河矿区主要发育3组剪节理,走向分别为NW^NNW向、近EW向、NE^NNE向。根据节理相互切割关系配套分析,确定为两套共轭剪节理。在节理分期配套的基础上,测算了各组共轭剪节理组对应的应力轴产状。根据区域地质演化和节理的测量分析,将研究区自含煤建造形成之后的构造应力分为2期:侏罗纪末和新近纪以来,其最大主应力方向分别为近SN和NNE向。Based on the large-scale mapping of surface structural joints,it is found that three groups of shear joints are mainly developed in Baiyanghe mining area of Fukang,Xinjiang,with the strike of NW-NNW,near EW and NE^NNE,respectively.According to the matching analysis of joint cutting relationship,two sets of conjugate shear joints are determined.On the basis of joint stage matching,the stress axis occurrence of each conjugate shear joint group is calculated.According to the analysis of regional geological evolution and joint measurement,the tectonic stress in the study area since the formation of coal bearing formation can be divided into two periods:at the end of Jurassic and since Neogene,the maximum principal stress directions are near Sn and NNE,respectively.

关 键 词：阜康白杨河 构造节理 分期配套 古构造应力场 

分 类 号：P548[天文地球—构造地质学]