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四川省拉拉铜矿床有用伴生组分赋存状态研究
引用本文:肖渊甫 孙,燕 赵志强 牛,刚 张,林 康丛轩.四川省拉拉铜矿床有用伴生组分赋存状态研究[J].中国地质,2010,37(2):463-469.
作者姓名:肖渊甫 孙  燕 赵志强 牛  刚 张  林 康丛轩
作者单位:成都理工大学地球科学学院,四川,成都,610059
基金项目:矿物学岩石学矿床学国家重点(培育)学科建设项目 
摘    要:拉拉铜矿床位于康滇地轴西南缘,赋矿围岩是古元古界河口组变质火山岩,矿床为火山喷发沉积-变质层控型铜矿床1]。笔者通过野外地质调查、室内显微镜鉴定、电子探针成分分析等手段,研究了矿石组构、成分及主要有用伴生元素钼、钴、金、稀土、铂族元素等的赋存状态,有用伴生元素以独立矿物存在为主,类质同象为次。研究中发现了铂族矿物(铋碲镍钯矿、碲钯镍矿),得出矿床综合利用价值巨大的结论,并对进一步综合利用提出了建议。根据矿床野外产出及矿石组构特征,将成矿过程划分为火山喷发沉积成矿期、变质热液成矿期及表生期。

关 键 词:拉拉铜矿床  伴生组分  赋存状态  矿石组构  成矿期

Modes of occurrence of useful associated components in the Lala copper deposit, Sichuan Province
XIAO Yuan-fu,SUN Yan,ZHAO Zhi-qiang,NIU Gang,ZHANG Lin,KANG Cong-xuan.Modes of occurrence of useful associated components in the Lala copper deposit, Sichuan Province[J].Chinese Geology,2010,37(2):463-469.
Authors:XIAO Yuan-fu  SUN Yan  ZHAO Zhi-qiang  NIU Gang  ZHANG Lin  KANG Cong-xuan
Institution:College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, Sichuan, China
Abstract:The Lala copper deposit is located in the southwest margin of the Kangdian Axis in Sichuan Province, with the Paleoproterozoic metamorphic volcanic rocks as its ore-bearing country rocks. The ore deposit is a sedimentary-metamorphic copper deposit of volcanic eruptions. Through geological investigation, microscope identification, electron microprobe analysis and other means, the authors studied the modes of occurrence of ore fabric, the main useful components and associated elements of molybdenum, cobalt, gold, rare earth elements and platinum group elements. The useful associated elements occur mainly as independent minerals and subordinate^ as isomorphism. Minerals of platinum-group minerals, such as ore of bismuth-telluride-nickel-palladium and ore of telluride-palladium-nickel, were found, which shows the great comprehensive utilization value of this ore deposit. Suggestions for further utilization are also put forward in this paper. According to field characteristics of the ore deposit and fabric characteristics of the ore, the ore-forming process can be divided into sedimentary ore-forming stage of volcanic eruptions, hydrothermal metamorphism stage and supergene stage.
Keywords:Lala copper deposit  associated components  mode of occurrence  ore fabric  ore-forming stage
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