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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 determination of the nature of metallogenic solution, especially the pH value (pH), is the key to understanding the genesis of ore-bearing solution, metallogenic conditions and metallogenic mechanism. At present, the research on the properties of ore-forming solutions is mainly confined to the determination of the alteration mineral inclusions in the surrounding rocks, and the conclusion is drawn that the near-neutral hot brine mineralization. The authors believe that most of the inclusions in the alteration minerals of surrounding rocks can not represent the nature of the original ore-forming solution. There is a misunderstanding about the “near-neutral heat brine mineralization”, which should be mineralized ore solution formed by acidic water and The characteristics of mineral inclusions, the discovery of Roedder’s high metal content mineral inclusions solution, hydrogen and oxygen isotope data, the origin of high brine solution in mineral inclusions and the evolution mechanism of ore-forming solution are discussed. Genesis and evolution of mineralization.