内蒙古中元古界的褶叠层构造  

Study of Middle Proterozoic Folding Layer Structures in Inner Mongolia

作　　者：孙爱群[1] 牛树银[1] 许传诗[1] 

机构地区：[1]河北地质学院地质系

出　　处：《河北地质学院学报》1995年第1期20-26,共7页

基　　金：国家自然科学基金

摘　　要：在地壳较深构造层次、岩层间存在的明显韧性差以及大规模韧性水平分层剪切作用是形成褶叠层构造的先决条件。因此，褶叠层构造不仅仅在伸展构造体制中形成，只要条件具备，在挤压构造体制中也可形成。本文以渣尔泰群的褶叠层为例，论述在挤压构造体制中由于韧性水平分层剪切作用形成的褶叠层构造的展布规律、形态特征和在构造地质学中的意义。The prerequisite of forming folding layer is structural levels in the depths of crust,definite termperature and pressure condition, obvious ductile difference of rock beds as well as biggerscale horisontai larninarg ductile shearing on boundary of distinct lithologic beds. Thererore, folding bayer structures are not only formed in extensional tectonoregime, but also in pressuretectonoregime. This Paper as an example from folding layer occurring in Chaertai Group, discussthe law of folding layer distribution in pressure tectonoregime, horizontal laminary ductile shearins, shape feature and research significance.

关 键 词：褶叠层 挤压体制 渣尔泰群 内蒙古 褶皱运动 

分 类 号：P542.2[天文地球—构造地质学]