摘要
金沙江缝合带的洋 -陆转换过程 (洋盆扩张、洋壳俯冲、洋盆闭合 ) ,在羊拉地区引发了三期构造 -岩浆事件 ,分别形成海西期裂谷洋盆洋脊 -洋岛型火山岩、印支期陆缘弧同熔型花岗岩、燕山早期同造山碰撞型花岗斑岩及与之相对应的海底喷流 -热水沉积型。
There are three tectonomagmatic events happened in the Yangla region,including Hercynian ocean ridge and ocean island volcanicism,Indosinian syntectic granitic emplacement and intrusion of early Yanshanian synorogenic granite porphyry,they were related to oceanic basin spreading, oceanic crust subduction and oceanic basin close in Jinshajing area,respectively,and corresponding mineralization belong to eruption sedimentation type,skarn type and porphyry type,respectively.
出处
《华南地质与矿产》
CAS
2000年第1期59-62,共4页
Geology and Mineral Resources of South China
基金
地质矿产部定向基金项目"滇西德钦羊拉地区铜矿成矿条件及远景预测"!(地科定 95-12)
"九五"地质矿产部科技攻关项目"金沙江结合带
