摘要
研究区在前寒武纪发生了鞍山和吕梁两个变形旋面，其中鞍山变形旋回包括三个塑性程度不同的变形幕。而吕粱变形旋回只有一个脆－弱塑性变形幕，四个变形幕的依次形成反映变形作用呈现由深部层次向中浅部层次转变的一种演化序列。变形旋回，变形幕，地质事件。
In this study area,the Precambrian occurred in the Anshan and Luliang deformation cy-cles,among them,Anshan deformational cycle incltides 3 deformational episodes in differentplasticity.and Luliang deformational cycle has only a brittle-weak plastic deformationalepisode。These 4 deformational episodes formed in sequence show an evolutionary series thatdeformational process changed from deep to meditim shallow part。
出处
《吉林地质》
1994年第3期67-75,共9页
Jilin Geology
关键词
前寒武纪
构造变形
构造演化
变形旋回
Deformational cycle Deformational episode Geologic event Tectonicevolution
