Earth Science Frontiers ›› 2018, Vol. 25 ›› Issue (3): 50-58.DOI: 10.13745/j.esf.2018.03.004

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Tungsten metallogenic geological features and mineral resources potential analyses in China.

XIA Qinglin,WANG Xinqing,LIU Zhuangzhuang,LI Tongfei,FENG Lei   

  1. 1. Cooperative Innovation Center for Scarce Mineral Resources Exploration, China University of Geosciences(Wuhan), Wuhan 430074, China
    2. National Demonstration Center for Experimental Mineral Exploration Education China University of Geosciences(Wuhan), Wuhan 430074, China
    3. Faculty of Earth Resources, China University of Geosciences(Wuhan), Wuhan 430074, China
    4. Aero Geophysical Survey and Remote Sensing Center for Land and Resources, China Geological Survey, Beijing 100083, China
  • Received:2017-10-15 Revised:2018-02-26 Online:2018-05-15 Published:2018-05-15

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Abstract: Tungsten is one of traditional dominant mineral resources in China where a great deal of achievements have been made on tungsten metallogenic theories. However, the recent discovery of large tungsten deposits in Jiangxi, Yunnan and Xinjiang provinces poses new challenges to the traditional tungsten metallogenic theory, as it fails to explain the occurrences of these deposits. Therefore further studies on geological features, metallogenic pattern and resource potential of tungsten deposit are needed to provide theoretical guidance for future tungsten prospecting. Here, building on the tungsten resource potential prediction data from various provinces, we used mineral deposit model and comprehensive geological information prediction method to perform comprehensive database analyses with MapGIP platform. Based on the statistical analyses of 1538 tungsten mineral occurrences, the temporospatial distribution characteristics of tungsten deposits and orecontrol factors such as magmatites, structures and strata were summarized. Fifty six tungsten metallogenic belts were delineated according to tectonic units and locations of tungsten deposits and prospective areas. Prediction types of tungsten deposit were classified into quartz vein, skarn, porphyry, greisen, volcanic, sedimentmetamorphism, layered skarn and placer types, and prediction model for the main types was established. Finally, a total of 1357 minimum prospective areas were delineated nationwide, with a cumulative predicted WO3 resources of 29.73 million tons. According to the regional metallogenic characteristics, minimum prospective areas were merged into 461 levelⅡ prospective areas, and further combined into 118 levelⅢ prospective areas. Priority exploration targets were assigned to six levelⅢ prospective areas with better mineral potentials, including LusiLuanchuan area in Henan province, Baiganhu area in Xinjiang Uygur autonomous region, XianghualingYaogangxian area in Hunan Province, YematanGanbahenao area in Gansu Province, PingbeishanBaxiannao and Dahutang areas in Jiangxi Province.

Key words:  tungsten deposit, metallogenic geological features, mineral resources potential assessment, China

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