摘要
矿区赋矿地层为下奥陶统向阳组（Ｏ１ｘ），矿化受褶皱及断裂构造带控制，矿石属多金属硫化物型，金主要为显微次显微粒自然金，多以包裹体形式散布于毒砂和黄铁矿为主的载金矿物中。矿体与赋矿地层微量元素组合具有继承性，成矿物质主要来自赋矿层，部分来自成矿岩体，地下水热液与岩浆期后热液的复合流体，使成矿物质迁移、富集形成工业矿体，矿床属浅成复合热液型金矿床。
The ore bodies mainly occur in Xiangyang formation (O 1x),lower Ordovician .The structural belts of folds and faults control mineralization.The ore belongs in sulphide type of complex ore.The gold are mainly native ones in submicroscopic and microscopic size,mostly scattering as inclusions in the main Au bearing minerals as arsenopyrite and pyrite.The trace elements of ore bodies are similar to those of ore bearing strata,so ore forming matter is mainly from them while part from mineralized rocks.The compound fluid of underground hot water solution and the postdiagenetic hydrothermal solution leads ore forming matter to migrate,enrich,and form industrial ore bodies.This deposit belongs with the hypabyssal compound hydrothermal type.
出处
《黄金》
CAS
北大核心
1998年第2期7-12,共6页
Gold
关键词
地球化学
复合热液型金矿
金矿
矿床成因
geochemistry
compound hydrothermal type gold deposit
Xiangyun County of Yunnan
