粤西廉江银金矿床热液围岩蚀变特征及元素迁移的定量估算

CHARACTERISTICS AND QUANTITATIVE ESTIMATION ON ELEMENT MIGRATION IN HYDROTHERMAL WALL-ROCK ALTERATION IN LIANJIANG SILVER-GOLD DEPOSIT,WESTERN GUANGDONG PROVINCE, SOUTH CHINA

用惰性元素组分TiO2的质量系数作为参考点，定量估算了热液蚀变过程中主量元素和微量元素的迁移特性，探讨了元素迁移的地球化学性状及其与蚀变类型的关系，指出As、Sb、Cu、Ph、Zn可以作为成矿的指示元素，硅化、黄铁矿化、绢英岩化蚀变与成矿关系密切，热液蚀变对成矿作用有明显的影响。

The Lianjiang silver-gold deposit located at the borderland between Guangdong and Guangxi, is a big silver deposit associated with An, Ph, Zn elements. This paper uses, TiO2, quality coefficient as ideal reference point quantitatively appraising element migration behavior in hydrothermal wall-rock alteration, as well as element migration properties and its relation to alteration types. It is concluded that:①As,Sb,Cu,Pb,Zn may be index elements of mineralization, ① silicification, sulphide alteration,carbonation have close relation to mineralization, and ② The alteration of granite have influence on mineralization of Ag-Au deposit.