摘要
对金属矿床成矿溶液的性质 ,特别是 pH值 (酸碱度 )的确定 ,是认识含矿溶液的成因、成矿条件和成矿机理的关键。目前对成矿溶液性质的研究主要局限在对围岩蚀变矿物包裹体的测定方面 ,并得出近中性热卤水成矿的结论。作者认为 ,多数围岩蚀变矿物的包裹体溶液不能代表原成矿溶液的性质 ,“近中性的热卤水成矿”的认识有误 ,应是酸性水形成的含矿溶液成矿 ,并从矿物包裹体溶液的特征、Roedder的高金属含量的矿物包裹体溶液的发现、氢氧同位素资料、矿物包裹体中高卤水溶液的起源以及成矿溶液的演化机理等方面论述了酸性金属含矿溶液的成因及成矿演化过程。
The knowledge of the properties, especially the pH of ore forming solutions, is the key to understanding the genesis of ore forming solutions, the conditions and mechanism of ore formation. The authors think that the conclusion: “Ore deposits were formed by hot, nearly neutral brines' in terms of the analyses of fluid inclusions is wrong, and it is the acid solutions that formed the ore forming solutions. There is a lot of evidence showing the acid nature of ore forming solutions. The authors discussed the genesis and pH evolution of ore forming solutions.
出处
《矿物学报》
CAS
CSCD
北大核心
2000年第1期28-34,共7页
Acta Mineralogica Sinica
基金
国家自然科学基金!(批准号 :49773 2 0 3 )资助项目
关键词
矿物包裹体溶液
酸性水成矿
卤水
含矿溶液
nature of fluid inclusions
formation of ore deposits by acid solution
origin of high brine inclusions
evolution of ore forming solutions
