摘要
应用地球化学热力学方法研究了底苏铅锌矿床成矿物理化学条件。研究结果表明，成矿温度为中低温，成矿深度小于２ｋｍ。含矿热液呈酸性，还原性较强，含盐度为８．９６％～１６．７％，富氯贫硫。铅锌主要以ＰｂＣｌ＿２０和ＺｎＣｌ＿２０形式迁移，并在层间破碎带中沉淀富集。物理化学条件改变是导致矿质再沉淀的重要因素。
On the basis of the geochemical thermodynamic method,the ore-forming physical-chemical conditions of the Disu Pb-Zn deposit is studied in this paper. The results show that the Ph-Zn deposit was formed under a low or middle temperature and at a depth of less than 2 km. The ore-forming solution was lower in pH and Eh, poor in sulfur and rich in Cl, and had a moderate salinity. The metals in the ore-formins solution were mainly misrated as chloride comlexes,such as PbCl20 and ZnCl20. When the ore-forming fluids were conversed into the intra formational fault zone,Pb and Zn were deposited, and its main reason was the change of physical-chemical conditions.
出处
《成都理工学院学报》
CSCD
1995年第4期15-21,共7页
Journal of Chengdu University of Technology
关键词
成矿
物理化学条件
矿化
铅锌矿床
physiscal-chemical conditions
Pb-Zn mineralization
Disu Pb-Zn deposit
