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《Geoscience》 2008-01
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Geological Characteristics and Metallogenic Model of the Narigongma Copper-Molybdenum Deposit in the North Part of the Sanjiang Region,Southwest China

CHEN Jian-ping1,2,TANG Ju-xing 3,CHEN Yong 1,2,LI Bao-hua4,SHANG Bei-chuan1,2(1.Institute of Land Resources and High Techniques,China University of Geosciences,Beijing 100083,China;2.Beijing Key Laboratory of Research and Exploration Information of Land Resources,China University of Geosciences,Beijing 100083,China;3.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China;4.College of Earth Sciences,Chengdu University of Technology,Chengdu,Sichuan 610059,China)  
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 minera-lization.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.
【Fund】: 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(200110200010)
【CateGory Index】: P618.65
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