墨西哥哈里斯科州PLOMOSA银铅锌矿床地质特征及找矿潜力分析

Geological characteristics and prospecting potential of the PLOMOSA Ag- Pb- Zn deposit in the Jalisco State of Mexico

PLOMOSA银铅锌矿位于墨西哥中南部哈里斯科州火山岩成矿带矿产富集区,区内已发现与构造—岩浆热液作用有关的金属矿床(点)12处。文章在野外地质调查的基础上,结合可收集到的地质矿产资料,系统地总结论述了PLOMOSA银铅锌矿地质特征、找矿标志,探讨了矿床成因类型,分析了找矿潜力,认为该矿床为海相火山—次火山热液充填(交代)型Ag-Pb-Zn多金属矿床,为该地区成矿预测和地质找矿提供了理论依据。

The PLOMOSA Ag -Pb -Zn deposit located in the Jalisco State, the central and southern part of Mexico, occurs at a major volcanic metallogenic area, where 12 metal deposits related to tectonic -hydrothermal activity have been discovered. Based on the detailed filed investigation and previous geological data, the author systematically described the deposit geology and the exploration criteria of the PLOMOSA Ag - Pb -Zn deposit, and discussed the deposit genesis. Then the prospecting potential in the deposit area is analyzed. Based on the study result, the authors thinks that the PLOMOSA deposit is a marine volcanic - subvolcanic hydrothermal filling type Ag - Pb - Zn polymetallic deposit. This perception will provide a new theoretic basis for the metallogenic predication and mineral exploration.