黔东南地区构造特征

黔东南地区构造复杂，发育有多期次，不同组合类型的构造形迹，通过构造解析划分出了顺层韧性剪切带，阿尔卑斯式褶皱，侏罗山式褶皱，过渡性剪切带，逆冲推覆构造及地垒－地式构造等组合类型，它们分别产出于造山前期伸展背景，造山带，造山带前陆和造山后地壳隆升背景，反映了该区不同时期构造类型及构造演化特征。

Structural Characteristic of Southeast Guizhou Area

Southeast Guizhou is characteristic of complex structure where develops of structural traces of multi_periods and various composed types. According to the structural analysis, these have been divided into several composed types such as bedding ductile shear zone, Alpinotype folds, Mt Jura_type folds, transition shear zone, obduction nappe structure and horst_graben structure. Each respectively occurs in the following backgrounds of preorogenic extension, orogenic zone and orogenic foreland and postorogenic crustal uplift, which manifest the structural types and structural evolution character in different periods.