Characteristics of Gold-Bearing Minerals in the Yixingzhai Gold Deposit, Fanshi County, Shanxi Province
摘要
The Yixingzhai gold deposit is located in Fansi County, Shanxi Province, whose mineralization belongs to quartz-vein type. The authors made statistical analysis of the shapes, grain sizes and modes of occurrence of gold minerals by using quantity statistical method and area statistical method, and the results indicate that different gold minerals show remarkable differences in occurrence rate and area distribution. Gold-bearing minerals generally contain iron, sulfur, copper, zinc and lead. The results indicate that iron and sulfur show inverse correlation with gold, and have stable lead content and remarkably varying copper and zinc content. In combination with the relationship between the temperature and the Au and Ag content, the authors suggest that the gold minerals formed in medium-low temperature.