沉积与特提斯地质2011，Vol.31Issue(3)：95-99,5.
广西珊瑚钨锡矿床伴生银的迁移沉淀机制
The mechanism of migration and precipitation of associated silver in the Shanhu tungsten-tin deposit, Guangxi
摘要
Abstract
The Shanhu tungsten-tin deposit in Guangxi displays vertical inverse zoning: tin enrichment in the upper part, tungsten and tin enrichment in the middle part, and tungsten enrichment in the lower part of the deposit. The lower salinity and density of the ore-forming fluids suggest slightly reduction and acidic systems. The associated silver tends to be migrated as chlorine complexes and sulfur complexes. The migration and precipitation of silver complexes depend on the S " concentration in the hydrothermal solution. The S " concentration increases with the decrease of mineralization temperatures and the increase of Ca + concentration and pH values, resulting in the precipitation of abundant sulfides and silver-bearing sulfosalts. The associated silver tends to occur in the lower and middle parts of ore veins due to lower ore-forming temperatures in the deeper parts.关键词
钨锡矿床/伴生银/迁移/沉淀机制Key words
tungsten-tin deposit/ associated silver/ migration/ mechanism for precipitation分类
天文与地球科学引用本文复制引用
王乾,安匀玲,夏宏远,梁书艺..广西珊瑚钨锡矿床伴生银的迁移沉淀机制[J].沉积与特提斯地质,2011,31(3):95-99,5.基金项目
国家重点(培育)学科建设项目四川省重点学科(SZD0407)项目 （培育）
