桂西北与辉绿岩类岩石有关的金矿地质特征——以百色龙川金矿为例

Geological features of gold deposits that have relationship with diabase in the northwest of Guangxi:Taking example of the Longchuan gold deposit in Baise

龙川金矿位于桂西北地区,是一个与辉绿岩类岩石有一定时空联系的典型蚀变岩型金矿。该矿产于辉绿岩体与地层的接触带,严格受接触带和挤压破碎带的共同控制。辉绿岩起着沟通深部与浅部构造,并使深部的含矿流体沿挤压破碎带上升、沉淀而成矿的作用。在桂西北有多处与龙川金矿地质环境类似的地区,在此类地区寻找该类型金矿床有较好的前景。

The Longchuan gold deposit is a representative tectonicaltered rock type in the northwest of Guangxi,which has spacetime relationship with diabase. The gold deposit is located in the contact zones of diabase and strata,which are strictly controlled by the contact zones and the compressed fragmentized belts.Diabase connected depth and shallow and caused deep auriferous metallogenetic fluid through rifted fractured zone uplifting and precipitation. There are some areas which have the same geological characteristics in the northwest of Guangxi, where are the best area to discovered the same type gold deposit.