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    Volume 50 Issue 11
    Nov.  2025
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    Article Navigation >  Earth Science  > 2025  >  50(11): 4323-4336
    Wang Lei, Wei Jinhua, Ouyang Hegen, Wu Lianrong, Zhao Xiaoyu, Yang Fan, Wo Yongjun, Xie Guiqing, 2025. Enrichment Regularities of Se and Te and Their Potential Resources in Pulang Porphyry Cu-Au-Mo Deposit, Sanjiang Orogenic Belt. Earth Science, 50(11): 4323-4336. doi: 10.3799/dqkx.2025.145
    Citation: Wang Lei, Wei Jinhua, Ouyang Hegen, Wu Lianrong, Zhao Xiaoyu, Yang Fan, Wo Yongjun, Xie Guiqing, 2025. Enrichment Regularities of Se and Te and Their Potential Resources in Pulang Porphyry Cu-Au-Mo Deposit, Sanjiang Orogenic Belt. Earth Science, 50(11): 4323-4336. doi: 10.3799/dqkx.2025.145
    shu

    Enrichment Regularities of Se and Te and Their Potential Resources in Pulang Porphyry Cu-Au-Mo Deposit, Sanjiang Orogenic Belt

    doi: 10.3799/dqkx.2025.145
    • 1.

      Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

    • 2.

      Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

    • 3.

      Yunnan Diqing Nonferrous Metals Co., Ltd., Shangrila 674400, China

    • 4.

      China Copper Mineral Resources Co., Ltd., Kunming 650051, China

    • Received Date: 2025-05-22
    • Publish Date: 2025-11-25
      Abstract
    • Recent years have witnessed increasing attention on the enrichment of selenium (Se) and tellurium (Te) within the Pulang super-large porphyry Cu-Au-Mo deposit; however, their resource potential and comprehensive utilization value remain unclear. In this paper it presents a systematical investigation of the principal host minerals and spatial distribution patterns of Se and Te within the deposit, employing methods such as LA-ICP-MS and ME-MS61r, and evaluation of their resource prospects. The findings reveal that Se is primarily enriched in chalcopyrite and molybdenite, while the main host mineral for Te is molybdenite. At the spatial distribution level, the contents of Se and Te in sulfides of the main mining area are obviously higher than those in the eastern mining area on the plane, which may be related to differences in mineralization types and ore-forming temperatures. However, in a single exploration line section, the contents of Se and Te show no obvious regular changes with depth. Regarding utilization value, the analysis of Cu and Mo concentrates shows that the Se content in Cu concentrates is 170×10-6-200×10-6, and that in Mo concentrates reaches 250×10-6, both meeting the recovery indexes for associated Se minerals. The Te content in Cu concentrates is 3.6×10-6-5.5×10-6, and that in Mo concentrates is 16.4×10-6. Only Mo concentrates slightly exceed the recovery standard for associated Te minerals, and due to the Cu-dominated mining characteristics of the deposit, the comprehensive recovery value of Te is relatively limited. In terms of resource estimation, based on the proven Cu resource of 5.11 Mt, the potential Se resource of the Pulang deposit is calculated to be approximately 4 440 t, reaching the super-large scale.

       

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