内蒙古乌拉特中旗赛音呼都格地区渣尔泰群构造演化特征  

Tectonic evolution at Chartai group in Sain Hudag,Urad Zhongqi

作　　者：刘占途 

机构地区：[1]中钢集团天津地质研究院,天津300181

出　　处：《地质找矿论丛》2012年第3期332-336,共5页Contributions to Geology and Mineral Resources Research

摘　　要：乌拉特中旗赛音呼都格地区渣尔泰群经历了两期构造变形:早期(主期)褶皱样式为不协调褶皱,发育大型的同斜褶皱,构造应力场方向为NWW-SEE向;晚期褶皱以宽缓弯曲的形式,横跨叠加在主期褶皱之上,主要表现为轴面面理在走向和倾向上的波状弯曲,区域主压应力为近EW向。Two stages of tectonic deformation occurred at Chartai group in Sain Hudag, Urad Zhongqi. The first stage is characterized by disharmonic folding and large isoclinat fold was developed under NWW-SEE stress field. The second stage is characterized by gentle open fold with wavy curve foliation along both the strike and dip and overprinting of fold of the second stage on that of the first stage and the princi- ple stress is nearly in EW direction.

关 键 词：赛音呼都格 渣尔泰群 褶皱 倒转背斜 内蒙古自治区 

分 类 号：P548[天文地球—构造地质学]