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云南会泽超大型铅锌矿床成因研究中的几个问题
Several problems for genetic studies on the Huize giant Pb-Zn Deposit of Yunnan Province
【Author】 Huang Zhilong Li Wenbo Han Runsheng Chen Jin Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Graduate School, Chinese Academy of Sciences, Beijing 100039, China Kunming University Science and Technology, Kunming 650093, China 4 Huize Giant zinc-lead Deposit of Yunnan Province, Huize 654211, China
【机构】 中国科学院地球化学研究所; 昆明理工大学国土资源学院; 云南会泽超大型铅锌矿;
【摘要】 位于川—滇—黔铅锌多金属成矿域中南部云南会泽超大型铅锌矿床可能是一种新的铅锌矿床类型,该类铅锌矿床明显特征是规模大、品位富、伴生有用元素多,暗示其成矿环境较为特殊。本文从成矿时代、成矿物质来源、成矿流体来源与演化、以及峨眉山玄武岩与成矿的关系等方面分析了会泽超大型铅锌矿床的研究进展及国内外研究现状。认为矿床成矿时代与西南大面积峨眉山玄武岩成矿时代相近、成矿物质和成矿流体具有“多源性”、成矿流体存在均一化过程、区域大规模流体运移在该区铅锌成矿过程中具有重要意义、峨眉山玄武岩岩浆活动与铅锌成矿具有密切的成因联系、矿床可能为“均一化成矿流体贯入成矿”的产物。
【Abstract】 The Huize giant zinc-lead deposit, which is located in the center of the Sichuan-Yunnan-Guizhou Zn-Pb polymetallic mineralization area, maybe a new type of Zn-Pb deposit. This type of Zn-Pb deposits is famous for their large scale, high grade and many associated byproduct trace elements. These characteristics imply that they may form in a special background. In this paper, based on the metallogenetic epoch, the source of base metals and ore-forming fluid arid the relationship between Emeishan Basalt and mineralization, we summarize the studying progress on the Huize Giant Zn-Pb deposit. The result shows that the age of this deposit is similar to that of Emeishan Basalt that distributes in the South-west China; The base metals and ore-forming fluid have several sources and completely mixed during the leaching, migration and precipitation process; Large-scale fluid migration in this area played an important role in the Zn-Pb mineralization process; The Zn-Pb mineralization in this area has closely relationship to Emeishan Basalt magmatic activities; When large-scale homogenous fluid migrated in host carbonate rock, the Zn-Pb ores precipitated.
【Key words】 metallogenetic epoch; source of base metals and ore-forming fluid; relationship between Emeishan Basalt and mineralization; the Huize Giant Zn-Pb deposit;
- 【会议录名称】 峨眉地幔柱与资源环境效应学术研讨会论文及摘要
- 【会议名称】峨眉地幔柱与资源环境效应学术研讨会
- 【会议时间】2003-10
- 【会议地点】中国成都
- 【分类号】P618.4
- 【主办单位】中国地质学会矿床专业委员会、中国科学院矿床地球化学重点实验室、中国地质科学院矿产资源研究所