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西南三江北段纳日贡玛铜钼矿床地质特征与成矿模式
引用本文:陈建平,唐菊兴,陈勇,李葆华,尚北川.西南三江北段纳日贡玛铜钼矿床地质特征与成矿模式[J].现代地质,2008,22(1):9-17.
作者姓名:陈建平  唐菊兴  陈勇  李葆华  尚北川
作者单位:1. 中国地质大学国土资源与高新技术研究中心,北京,100083;中国地质大学北京市国土资源信息开发研究重点实验室,北京,100083
2. 中国地质科学院矿产资源研究所,北京,100037
3. 成都理工大学地球科学学院,四川,成都,610059
基金项目:中国地质调查局西南三江北段重大成矿疑难问题研究项目
摘    要:纳日贡玛铜钼矿床是位于三江成矿带的大型铜(钼)矿床。虽然该矿床在找矿工作上取得重大突破,但关于矿床成矿模式的理论研究较少。在总结矿床地质特征的基础上,对矿区内花岗斑岩的矿物岩石化学成分、微量元素和稀土元素特征进行分析,测试包裹体均一温度、盐度、化学成分及C、H、O同位素组成,探讨其热液蚀变类型及分带特征。结果表明:该矿床为斑岩型铜钼矿床,其成矿物质主要来源于花岗斑岩体,成矿流体为岩浆水和大气降水组成的混合热液。在此基础上,提出了纳日贡玛铜钼矿床的成矿模式,利用Micromine软件建立了矿床三维立体模型,其成果为矿床成因的认识与找矿工作提供了参考。

关 键 词:纳日贡玛铜钼矿床  成矿模式  斑岩型矿床  三维矿床模型  三江成矿带
文章编号:1000-8527(2008)01-0009-09
收稿时间:2007-11-20
修稿时间:2008-01-05

Geological Characteristics and Metallogenic Model of the Narigongma Copper-Molybdenum Deposit in the North Part of the Sanjiang Region, Southwest China
CHEN Jian-ping,TANG Ju-xing,CHEN Yong,LI Bao-hua,SHANG Bei-chuan.Geological Characteristics and Metallogenic Model of the Narigongma Copper-Molybdenum Deposit in the North Part of the Sanjiang Region, Southwest China[J].Geoscience——Journal of Graduate School,China University of Geosciences,2008,22(1):9-17.
Authors:CHEN Jian-ping  TANG Ju-xing  CHEN Yong  LI Bao-hua  SHANG Bei-chuan
Abstract:Narigongma is a large Cu-Mo deposit found in the Sanjiang metallogenic belt. Although breakthrough has been made in the exploration work, few studies have been devoted to the theoretical research for the mineralization. Based on the study of the geological characteristics of the Narigongma Cu-Mo deposit, the authors analyze the geochemical components of the ore-bearing rock, characteristics of trace elements and rare earth elements, measure the homogenization temperature, salinity, chemical composition, as well as C, H, and O isotopic composition of the fluid inclusions, and also discuss the characteristics of the hydrothermal alteration. The result shows that this deposit belongs to porphyry-type Cu-Mo deposits. The ore-forming source comes from the granite porphyry. Metallogenic fluid is composited with magmatic water and atmospheric precipitation. The authors propose the metallogenic model of this deposit, establish the three dimensional model of ore deposit using the Micromine software. The results are significant for realization of the deposit genesis and mineral exploration.
Keywords:Narigongma Cu-Mo deposit  metallogenic model  porphyry Cu-Mo deposit  three dimensional deposit model  Sanjiang metallogenic belt
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