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以盛产攀枝花式钒钛磁铁矿而闻名世界的攀西地区层状岩体,都具有典型的韵律旋回性特征,韵律层和火成堆积结构。它是在康滇大陆古裂谷带构造拉张的特定环境中形成的层状火成堆积体。岩体受康滇古裂各带的严格控制,成群分布在康滇南北向台背斜两侧的,东支安宁河,西支攀枝花裂各带中。岩体原始侵位产状近于水平,顺层侵位于上震旦统灯影组白云质灰岩之中,外接触带普遍发生热接触变质作用,产生大理岩化,镁橄榄石化,矽线石—黑云母化等接触变质带。内
The Panzhihua-type bedded rock mass, which is famous for its Panzhihua-type vanadium-titanium magnetite, has typical rhythmic cycle characteristics, rhythmic layers and pyroclastic structures. It is a stratiform igneous accumulation formed in the specific environment of the ancient rift belt in the Kang-Dian continent. The rock bodies are strictly controlled by the ancient Kang-Li ancient rift belts, and are distributed in groups of Anninghe and Dongzhi branches of Panzhihua in the east and south of the Kangbian Mountains. The initial emplacement of the rock mass is near horizontal, and the bedding intrusion is located in the dolomitic limestone of the Upper Sinian Dengying Formation. The outer contact zone generally undergoes thermal contact metamorphism and produces marble, forsterite, sillimanite - Biotite and other metamorphic belt. Inside