摘要
南化塘地区蓝闪片岩带,位于耀岭河群强变形层的顶底部位置,是扬子地块北缘高压变质带的组成部分。形成温度为500℃左右,压力为1.5MPa左右,特征矿物为青铝闪石。蓝闪片岩是板内碰撞的产物,与扬子地块向北东仰冲推覆所形成的构造超压密切相关。
The glaucophane - schist belt of the Nanhuatang region is a part of the high - pressurized metamorphie belt in the northern Yangtze plate. It lies to the bottom and upper of deformed strata in the Yaolinghe Group, with the formed conditions of T = 500C±,p= 1. 5Gpa±. Its characteristic mineral is crossite. The glaucophne - schist is the formation of the interior plate in collision. It closely relates to the tectonic- extra pressure that was formed by the Yangtze plate napped upthrustly towards NE.
出处
《地球科学与环境学报》
CAS
1993年第S1期93-97,共5页
Journal of Earth Sciences and Environment
关键词
蓝闪片岩
青铝闪石
逆冲推覆韧性剪切带
南化塘
Glaucophane -schist, Crossite , Thrust -napped ductile shear zone, Nanhuatang
