对矿物包裹体溶液性质的新认识——兼论含矿溶液是酸性溶液的地质证据  

A NEW RECOGNITION OF THE NATURE OF FLUID INCLUSIONS AND GEOLOGICAL EVIDENCE FOR ACID ORE-FORMING SOLUTIONS

作　　者：陈福[1] 龙洪波[1] 董丽敏[1] 

机构地区：[1]中国科学院地球化学研究所,贵阳550002

出　　处：《矿物学报》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

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.

关 键 词：矿物包裹体溶液 酸性水成矿 卤水 含矿溶液 

分 类 号：P612[天文地球—矿床学] P571[天文地球—地质学]