摘要
云南剑川铁锈山铁矿大地构造位置归属于兰坪-思茅凹陷北段,是澜沧江成矿带的组成部分。通过对前人资料进行收集、整理并分析归纳,进一步实地对矿区进行考察,分析了铁锈山铁矿的地质特征及控矿因素,主要得出了以下结论:矿区内出露的地层为三叠系上统三合洞组(T3s)、麦初箐组(T3m)以及侏罗系中统花开左组(J2h)构造上表现为压性特征,裂隙、节理等发育,无岩浆活动,围岩蚀变主要为硅化、绿泥石化、黄铁矿化及褐铁矿化。最主要的控矿因素是构造,经过初步分析认为该铁矿床成因类型属于中、低温热液型矿床。
The Tiexiu mountain Fe deposit in Jianchuan, Yunnan lies in northern of Lanping-Simao depression, part of the Lancang River metallogenic belt. Through analyzing previous data collecting, sorting and induction, further field of examining the ore district. This paper deals with geological features and ore controls for the Tiexiu mountain Fe deposit. The study indicates that strata exposed in the ore district belongs to Triassic Sanhedong Group （T3s）, Maichuqing Group （T3m）and Jurassic Huakaizuo Group （J2h）, characterized by development of longitudinal cross faults, fracture and joint. The alteration of surrounding rock is mainly in the silicide, chloritization, pyrite mineralization, limonite mineralization and without magmatic rock. Fe orebodies are controlled by fracture structure＇and the Fe deposit is a medium and low temperature hydrothermal type one.
出处
《四川有色金属》
2016年第4期50-53,共4页
Sichuan Nonferrous Metals
关键词
铁矿
地质特征
控矿因素
热液型矿床
Fe deposit
geological features
ore control factor, hydrothermal type deposit
