【摘要】 通过对湘东北及其邻区的地质背景和铜多金属矿床地质 -地球化学特征的综合研究 ,提出斑岩型和热液脉型铜矿的成矿物质主要来自同含矿斑岩体或岩脉有联系的深部岩浆分异演化而析出的含矿气液流体 ,与此同时 ,含矿斑岩体或岩脉定位—结晶时通过周围受热地下水的对流循环作用 ,还可从围岩中萃取少量成矿物质加入成矿作用。更多还原

【Abstract】 Based on systematical study of geological settings and geochemical features of copper deposits, the authors propose that metallogenetic materials of the porphyry-type and hydrothermal vein-type copper deposits in northeastern Hunan Province were mainly from the ore-bearing fluids derived from the granite-porphyry or related dikes through deep magmatic differentiation and partly derived from the wallrocks by extraction during transport and emplacement of granite-porphyry or dikes when the ground water was heated and circulation around the country rocks.更多还原