摘要
同生碎屑是沉积岩中一种反映动荡沉积环境的典型构造现象。笔者在大背坞地区首次发现了同生碎屑，这对确定双桥山群属于浊流相沉积提供了又一重要证据。根据同生碎屑的变形特征，笔者认为本区双桥山群地层主要经历两期变形，即以压扁为主的区域褶皱变形和以剪切为主的韧性剪切变形。
Syngenetic clast in sedimentary rock is a structural phenomenon representing a turbulent sedimentary environment.The syngenetic clast discovered for the first time in the Dabeiwu area provides a strong support to the view that the Shuangqiaoshan Group is a turbidite.Based on the deformation feature of the syngenetic clast,the author believes that the Shangqiaoshan Group in this area has undergone two phases of deformation,viz.the regional fold defomation dominated by flattening and the ductile shear deformation dominated by shearing
出处
《江西地质》
1997年第2期1-4,共4页
Jiangxi Geology
关键词
变质岩
同生碎屑
地质意义
epimetamorphic rock syngenetic clast geological significance Dabeiwu area
