摘要
本区冷家溪群为奠基于结晶基底之上的陆间裂陷槽沉积的产物,强烈的武陵造山运动,使其基本固结并形成褶皱基底,从而开辟了一个新的构造演化阶段。板溪群及其与之相当地层为板内被动陆缘沉积,无论是沉积性质还是变形变质作用均具有沉积盖层的特征。
Systematical study on sedimentary and metamorphic facies shows that: (1) the Proterozoic Lengjiaxi Group in Xuefengshan area represents a sedimentary sequence of intercontinental rift system and consists a part of the folded basement of the Yangtze Block after consolidation during the Wuling Orogeny; (2)the Neo-Proterozoic Banxi Group is of the characteristics of passive continental margin type deposit and should be the first cover of the Yangtze Platform.
出处
《华南地质与矿产》
CAS
1999年第4期10-15,共6页
Geology and Mineral Resources of South China
基金
地质矿产部定向基金研究项目"雪峰山地区金矿成矿条件及远景预测"的部分研究成果
关键词
沉积岩相
构造演化
前震旦纪
雪峰山地区
sedimentary facies geotectonic evolution Pre-Sinian Xuefengshan area
