酸性含矿热液的成因及成矿演化模式  

GENESIS OF ACID ORE-FORMING SOLUTIONS AND THEIR EVOLUTION MODEL

作　　者：陈福[1] 

机构地区：[1]中国科学院地球化学研究所,贵阳550002

出　　处：《地质地球化学》2000年第1期48-52,共5页Geology-Geochemistry

基　　金：国家自然科学基金 !批准号:49773203

摘　　要：金属成矿热液的成因、性质及搬运条件长期没有解决 ,严重影响着矿床成因和预测找矿的研究。很多人认为自然界水溶液与地壳岩石多处于反应平衡状态 ,应为近中性 ,否定自然界有强酸性水溶液的生成。本文从理论上论证了自然界存在着强酸性热液的生成条件 ,并认为绝大多数金属矿床都是这种强酸性热液演化的产物。强酸性热液与围岩金属矿物反应必然形成高含量的金属含矿溶液 ,高含量的金属含矿溶液进到有利成矿空间必然成矿。本文用酸性含矿溶液pH值的演化原理论证了自然界金属矿床成矿的必然规律。Most people think that natural water is in equilibrium with crust rocks, so it must be nearly neutral. Therefore, there has not been any strongly acid solution in nature. This paper discusses theoretically the conditions of formation of strongly acid solutions in nature and most ore deposits are products of the evolution of strongly acid solutions. The reaction of a strongly acid solution with rocks containing high metal minerals must result in a ore\|bearing solution, and when the latter found its way into an open structural space, it must deposit metals with the rise of pH. This paper discusses the rule of deposition of metals based on the evolution theory of acid solutions.\;

关 键 词：金属矿床 矿床成因 酸性含矿热液 成矿演化 

分 类 号：P618.201[天文地球—矿床学] P618.204[天文地球—地质学]