摘要
滇西两河金矿床产于新生代火山温泉地热环境中。本文对大地构造环境、区域地质构造、火山岩浆及其地热活动、容矿围岩及其蚀变、矿石物质成分及其元素组合特征等研究表明,金的成矿作用与火山热泉水热活动密切相关,具有热泉型金矿的一系列典型特征。据矿床特征和热泉型金矿品位—储量模式对比分析,认为本区所处大地构造环境和区域地质环境是形成热泉型金矿的有利地区。
The deposit formed in the volcano thermal-spring geothermal environments in Cenozoic. All the phenomena-geotectonical settings, regional structural settings, the volcanic magma and its geothermal activities, country rocks and their alteration , mineral components and their features of element combinations, which have the typical characteristics of the thermal-spring gold deposit, show the close relationship between the gold metallogeny and volcano hydrothermal activities. The comparison of the deposit characteristics and grade-reserve model of thermal spring-type gold deposit suggests that the geotectonic environments and the regional structural environments, where the deposit lies, are favourable for the metallogeny, and that the genetic type, the thermal-spring type is one of the main super-large gold deposit types in the world.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1991年第2期189-197,共9页
Earth Science-Journal of China University of Geosciences
关键词
金矿
热泉型
云南
矿床
volcano thermal-spring thermal-spring type, gold deposit, Western Yunnan.
