摘要
梁河来利山锡矿区位于三江构造带南段西缘,断裂构造特别发育.通过对矿区控矿构造的分析,论述了控矿构造的特征,进而探讨构造与成矿的关系,认为断裂构造在成矿过程中起着重要的作用.该矿区断裂构造具有多期活动的特点,早期为压扭性,后期显张扭性.岩浆期后含矿热液沿接触带破碎带或外带构造破碎带运移并在破碎带中充填、交代而成矿体.因此,断裂构造是成矿的必要条件,构造与成矿有着密切的依存关系.
The Lailishan tin ore field in Yunnan Province is located in the western margin of the south section of Sanjiang tectonic zone, where fault structures are especially developed. With analysis on the characteristics of ore-controlling structure in the ore field, the relationship between structure and metallogenesis are discussed. It is believed that fault structures play an important role in the process of mineralization. The faults in the ore field are characterized by multi-staged movement, with compresso-shear in the early and tenso-shear in the late. The post-magmatic ore-bearing hydrothermal fluid migrates along the contact fracture zone or external fracture zone and forms the ore by filling and replacing. Therefore, the fault structures are the necessary conditions for mineralization. The mineralization is closely dependent on the structure.
出处
《地质与资源》
CAS
2008年第4期282-285,301,共5页
Geology and Resources
基金
云南锡业集团项目"云南梁河锡多金属多元信息融合与成矿预测"(编号KKK0200721036)资助.
关键词
梁河锡矿
成矿
断裂
成矿模式
云南
Lailishan tin deposit
mineralization
fault
metallogenic model
Yunnan Province
