内蒙古大黑山金矿成矿物理化学环境

Study on the Conditions of Metallogenetic Physical Chemistry ln Daheishan Gold Deposit, lnner Mongolia

通过对大黑山金矿床的基本特征、金矿床的流体包裹体和硫、铅、氢氧同位素特征研究分析 ,认为该矿床形成在一种中温浅成的环境下 ,成矿溶液具有富含H2 O ,CO2 ,SO2 -4 和高Na+ 的特点 ,是岩浆热液和变质水的混合流体 。

The basic features of Daheishan gold deposit are introduced in this paper, According to the analysing fluid inslusion, S,Pb,H and O isotopes, it is considered that the gold deposit was formed in a moderate temperature and shallow depth condition. The ore forming fluid have features of rich H 2O,CO 2,SO 2- 4 and high Na +, it is the mixture of magmatic water and metamorphic water. The mineralizing mass are mainly provided by plutonic magma.