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Genetic relationship between silver-lead-zinc mineralization in the Wutong deposit, Guangxi Province and Mesozoic granitic magmatism in the Nanling belt, southeast China

Lecumberri-Sanchez, Pilar ; Romer, Rolf ; Lüders, Volker ; Bodnar, Robert

In: Mineralium Deposita, 2014, vol. 49, no. 3, p. 353-369

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    Titre
    • Genetic relationship between silver-lead-zinc mineralization in the Wutong deposit, Guangxi Province and Mesozoic granitic magmatism in the Nanling belt, southeast China
    Auteur
    • Lecumberri-Sanchez, Pilar. Department of Geosciences, Virginia Tech, 4044 Derring Hall, 24061, Blacksburg, VA, USA
    • Romer, Rolf. Helmholtz Centre Potsdam, Deutsches GeoForschungsZentrum (GFZ), Telegrafenberg, 14473, Potsdam, Germany
    • Lüders, Volker. Helmholtz Centre Potsdam, Deutsches GeoForschungsZentrum (GFZ), Telegrafenberg, 14473, Potsdam, Germany
    • Bodnar, Robert. Department of Geosciences, Virginia Tech, 4044 Derring Hall, 24061, Blacksburg, VA, USA
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Mineralium Deposita, 2014, vol. 49, no. 3, p. 353-369. Springer Berlin Heidelberg
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:325049
    Summary
    More than 50% of the world's total reserves of tungsten are in China and most tungsten deposits are located in the Nanling range in southeast China. This study explores the potential genetic relationship between tungsten-tin (W-Sn) mineralization and shallower Ag-Pb-Zn deposits in the Nanling range based on data from the Wutong deposit, Guangxi Province. The lead, oxygen, carbon, sulfur, and strontium isotopic compositions of minerals at Wutong indicate that a single crustal-derived fluid was responsible for mineralization. Wutong likely formed at relatively low temperatures (∼200-300°C) and low pressures, as indicated by the similarity between homogenization temperatures of fluid inclusions and those estimated from S isotopic compositions of minerals. The hübnerite age (92.3-104.4Ma) indicates that the Wutong mineralization is likely related to nearby Late Yanshanian (Cretaceous) S-type granites derived from Proterozoic crust. This mineralization event coincides with the last W-Sn mineralization event and the Cretaceous peak of mineralization in the Nanling range.