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东川铜矿的碳、氧同位素地质特征
引用本文:华仁民,阮惠础,刘燕,黄耀生.东川铜矿的碳、氧同位素地质特征[J].桂林工学院学报,1988(1).
作者姓名:华仁民  阮惠础  刘燕  黄耀生
作者单位:南京大学 (华仁民,阮惠础,刘燕),南京大学(黄耀生)
摘    要:东川铜矿两类矿体的碳酸盐围岩和脉石的碳、氧同位素研究表明:层状、似层状产出的主矿体形成于沉积-改造-变质作用过程;脉状、囊状等矿体的形成与构造变形、基性及碱性火成活动所产生的热液矿化作用有关,是对Ⅰ类矿体的改造和迭加。故东川铜矿是典型的复合成因层控矿床。

关 键 词:铜矿床  同位素组成  成因类型  层控矿床  云南

CHARACTERISTICS OF CARBON AND OXYGEN ISOTOPE COMPOSITION OF THE DONGCHUAN COPPER DEPOSITS
Hua Renmin,Ruan Huichu,Liu Yan,Huang Yaosheng Nanjing University.CHARACTERISTICS OF CARBON AND OXYGEN ISOTOPE COMPOSITION OF THE DONGCHUAN COPPER DEPOSITS[J].Journal of Guilin University of Technology,1988(1).
Authors:Hua Renmin  Ruan Huichu  Liu Yan  Huang Yaosheng Nanjing University
Affiliation:Hua Renmin;Ruan Huichu;Liu Yan;Huang Yaosheng Nanjing University
Abstract:This paper studies the carbon and oxygen isotope composition of ca-rbonate host rocks and the gangue calcite from two types of ore bodiesin Dongchuan copper deposits. Results of the studies show that the mainore bodies which occurred as stratiform or stratoid ones were formedduring deposition-diagenesis and metamorphism; whereas those occurredas lodes, nests, etc. were genetically related to the hydrothermal miner-alization caused by structural deformation and mafic-alkaline igneousactivities, which transformed and superimposed the first type of ore bo-dies.The Dongchuan copper deposits are therefore typical polygeneticstrata-bound deposits.
Keywords:copper deposit  isotope composition  genetic type  stratabound deposit  Yunnan
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