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机构地区:[1]成都地质学院
出 处:《南方国土资源》1990年第4期33-41,共9页
摘 要:广西云开地区分布有多种类型的金(银)矿化,主要有构造蚀变岩型、沉积改造型、矽卡岩热液叠加型、风化壳型及石英脉型等。本文讨论了上述前四种类型金(银)矿化的地球化学特征及成矿地球化学条件。内生金(银)矿床(化)的形成与多种热液活动有关,风化壳型矿化的形成则是由表生富集作用所致。There are many kinds of gold (silver) mineralization in Yunkai Mountain area in Guangxi. The main types are structural alteration type, sedimentary deformation type, skarn hydrothermal superposition type, weathering crust type and quartz vein type and so on. This paper has dealt with the geochemical characteristics and ore-forming geochemical conditions of the above-mentioned five kinds of gold (silver) mineralizations. It is believed that the formation of endogenic gold ( silver) deposit (mineralization) is associated with polygenetic hydrothermal activities and the formation of weathering crust type mineralization results from hypolaxic enrichment.
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