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。
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.
出处
《华南地质与矿产》
CAS
2001年第1期40-47,共8页
Geology and Mineral Resources of South China
基金
地质矿产部定向研究基金项目"湘东北地区铜多金属矿床成矿规律及矿床预测"的部分成果
关键词
成矿作用
斑岩型铜矿
热液脉型铜矿床
成矿物质来源
湖南
热地下水
copper deposits porphyry-type hydrothermal vein-type source of metallogenic materials northeastern Hunan
