利用断层滑动矢量反演协庄矿区构造应力场  

Modern tectonic stress field in Xiezhuang Coal Mine

作　　者：谢富仁[1] 荆振杰[1] 杜义[1] 崔效锋[1] 黄学猛[1] 

机构地区：[1]中国地震局地壳应力研究所,北京100085

出　　处：《煤炭学报》2009年第2期193-197,共5页Journal of China Coal Society

基　　金：国家重点基础研究发展规划基金资助项目(2006CB202203);科技部科技支撑基金资助项目(2006BAC13B01)

摘　　要：利用由断层滑动方向反演构造应力张量的计算方法,获得了协庄矿区深部10个测点的11个构造应力张量方向结构特征,反映了协庄地区中新世末期以来存在2期主要构造应力场作用:自中新世末期至上新世初期,协庄地区构造应力场以北北西—南南东向拉张为主要特征,应力结构为正断型;上新世以来,协庄地区的构造应力场以北东东—南西西向挤压,北北西—南南东向拉张为主要特征.应力结构为走滑型,并与由震源机制解获得的最新构造应力场的结果基本吻合,表明协庄地区现代构造应力场具有一定的稳定性.By means of inversion of fault slip data, the parameters of 11 tectonic stress tensorsin mine region were determined. And using the method of inversion of fault slip data, obtained following characteristics of two scheduled time tectonic stress field in the research region after Miocene last phase. From the Miocene last phase to the Pliocene initial stage, the tectonic stress field is mainly characteristic of nearly NNW - SSE extension, the stress regime is of normal fault type. After the Pliocene initial stage, the tectonic stress field is mainly characteristic of nearly NEE -SWW compresion, NNW- SSE extension, strike-sipe type. Compared with the average stress field of the region obtained from focal mechanism solutions, both fit basically.

关 键 词：协庄地区 断层擦痕 构造应力场 

分 类 号：P548[天文地球—构造地质学]