| Reference Type | Journal (article/letter/editorial) |
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| Title | Genesis of the Hacipushanbei Pb-polymetallic deposit in the East Kunlun Orogen, NW China: Constraints from geochronology and in situ trace-elements and sulfur isotopes of sulfides |
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| Journal | Ore Geology Reviews |
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| Authors | Zhang, Ming | Author |
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| Deng, Jun | Author |
| Zhao, Zhixin | Author |
| Liu, Chuanpeng | Author |
| Li, Hua | Author |
| Huang, Junjie | Author |
| Liu, Yan | Author |
| Zhao, Yanyan | Author |
| Liu, Xiaoyang | Author |
| Yao, Yonglin | Author |
| Tan, Jun | Author |
| Year | 2024 | Volume | < 166 > |
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| Page(s) | 105954 |
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| URL | |
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| DOI | doi:https://doi.org/10.1016/j.oregeorev.2024.105954Search in ResearchGate |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 17201401 | Long-form Identifier | mindat:1:5:17201401:4 |
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| GUID | cf0f6976-5927-475d-9f78-c1176d0f1e04 |
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| Full Reference | Zhang, Ming, Deng, Jun, Zhao, Zhixin, Liu, Chuanpeng, Li, Hua, Huang, Junjie, Liu, Yan, Zhao, Yanyan, Liu, Xiaoyang, Yao, Yonglin, Tan, Jun (2024) Genesis of the Hacipushanbei Pb-polymetallic deposit in the East Kunlun Orogen, NW China: Constraints from geochronology and in situ trace-elements and sulfur isotopes of sulfides. Ore Geology Reviews, 166. 105954 doi:10.1016/j.oregeorev.2024.105954 |
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| Plain Text | Zhang, Ming, Deng, Jun, Zhao, Zhixin, Liu, Chuanpeng, Li, Hua, Huang, Junjie, Liu, Yan, Zhao, Yanyan, Liu, Xiaoyang, Yao, Yonglin, Tan, Jun (2024) Genesis of the Hacipushanbei Pb-polymetallic deposit in the East Kunlun Orogen, NW China: Constraints from geochronology and in situ trace-elements and sulfur isotopes of sulfides. Ore Geology Reviews, 166. 105954 doi:10.1016/j.oregeorev.2024.105954 |
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| In | Link this record to the correct parent record (if possible) |
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| Abstract/Notes | A recent mineral exploration programme in the East Kunlun Orogen (EKO) identified the new Hacipushanbei Pb-polymetallic deposit. The ores are hosted in faults in granitic rocks and are marked by high Pb grades up to 22.5 %. U–Pb dating of calcites associated with mineralization yields an intersection age of 208 ± 9 Ma, indicating a late Triassic mineralization event. Fluid-inclusion analysis reveals that the ore-forming fluids are characterized by medium-to-high temperature, medium-to-low salinity, and low density. Fluid boiling or immiscibility during ore-formation is also noted. Three sub-generations of pyrite (Py1-1, Py1-2, and Py2) are recognized in the early mineralization stages. In situ trace element analysis shows low Co and Ni contents in Py1-1 and Py1-2 but high contents in Py2. Conversely, Au and As concentrations are the highest in Py1-2. Variations in As contents are systematically coupled with Au. Additionally, sphalerite in the second stage contains higher amounts of Co, Cu, Cd, and In, via a wide range of isomorphic elemental substitutions of X4+(Sn4+ and Ge4+) + X3+(In3+, Sb3+, and Ga3+) + X+(Ag+ and Cu+) ↔ 4Zn2+ and the associated In enrichment. The average δ34S values of in situ and single minerals of Py1-1, Py1-2, Py2, Sp2, Ccp2, and Gn3 are 2.3 ‰, 3.3 ‰, 2.6 ‰, 2.4 ‰, 2.2 ‰, and 0.9 ‰, respectively. These values display a trend of initial increase and then decrease, consistent with thermodynamic fractionation. These data collectively indicate that the ore-forming fluid originated from a deep-seated magma chamber, and subsequent fluid immiscibility led to the formation of high-grade ores. Given the conspicuous association of Pb-polymetallic deposits with magmatic rocks in the EKO, we envisage that our genetic model can be applied, to some extent, to evaluate the potential of some mineral exploration targets. |
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