摘要
碳酸盐岩地区的重晶石矿床,是在浅层条件下,以岩溶地下热卤水溶液为介质,岩溶作用为主导成矿作用形成的。本文主要从碳酸盐岩的含矿性、可溶性和成矿介质来源、矿液性质和迁移、沉淀作用等,探讨了重晶石的岩溶成矿过程。并根据矿床的产出形态和成矿特征,将岩溶型重晶石矿床划分为三种类型:即岩溶洞穴充填型、岩溶(溶隙、孔隙)充填一交代型和岩溶砂矿型。
Barite deposits in carbonate rock area forms under shallow condition with karst hy-drothermal brine solution as medium and karstification as leading factor of mineralization. The paper mainly discusses the process of karst ore-forming of barite on the basis of ore-bearing character and solubility of carbonate rocks; sources of ore-forming minerals and water solution, property, movement and precipitation of ore-forming solution and so on. According to the occurrence pattern and ore-forming feature of barite deposits, which can be divided into three types:
(1) Hydrothermal karst cave deposit by cavity filling;
(2)Hydrothermal karst deposit of solutional fissure and pore by cavity filling or metasomatism;
(3) Karst placer deposit.
出处
《中国岩溶》
CAS
CSCD
北大核心
1993年第3期251-260,共10页
Carsologica Sinica
关键词
重晶石矿床
成因
类型
碳酸盐岩
barite deposit, sources of ore-forming minerals, karst ore-forming,genetic type
