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Wang, Liqiang, Li, Baoliang, Wang, Yong, Gao, Teng, He, Liang (2024) Tracing the Fe-enriched quartz vein-type wolframite mineralization: Wolframite U-Pb dating and compositions of wolframite and scheelite from the Anglonggangri and Jiaoxi areas, Xizang, China. Ore Geology Reviews, 170. 106154 doi:10.1016/j.oregeorev.2024.106154

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Reference TypeJournal (article/letter/editorial)
TitleTracing the Fe-enriched quartz vein-type wolframite mineralization: Wolframite U-Pb dating and compositions of wolframite and scheelite from the Anglonggangri and Jiaoxi areas, Xizang, China
JournalOre Geology Reviews
AuthorsWang, LiqiangAuthor
Li, BaoliangAuthor
Wang, YongAuthor
Gao, TengAuthor
He, LiangAuthor
Year2024Volume<   170   >
Page(s)106154
URL
DOIdoi:10.1016/j.oregeorev.2024.106154Search in ResearchGate
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Mindat Ref. ID17485944Long-form Identifiermindat:1:5:17485944:6
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Full ReferenceWang, Liqiang, Li, Baoliang, Wang, Yong, Gao, Teng, He, Liang (2024) Tracing the Fe-enriched quartz vein-type wolframite mineralization: Wolframite U-Pb dating and compositions of wolframite and scheelite from the Anglonggangri and Jiaoxi areas, Xizang, China. Ore Geology Reviews, 170. 106154 doi:10.1016/j.oregeorev.2024.106154
Plain TextWang, Liqiang, Li, Baoliang, Wang, Yong, Gao, Teng, He, Liang (2024) Tracing the Fe-enriched quartz vein-type wolframite mineralization: Wolframite U-Pb dating and compositions of wolframite and scheelite from the Anglonggangri and Jiaoxi areas, Xizang, China. Ore Geology Reviews, 170. 106154 doi:10.1016/j.oregeorev.2024.106154
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Abstract/NotesCritical factors controlling Fe-enriched wolframite formation in the quartz vein-type wolframite deposit are in controversy. The Jiaoxi and Anglonggangri are typical examples of quartz vein-type wolframite mineralization found in western Lhasa terrane. The Jiaoxi wolframite comprise dominantly early hübnerite with late ferberite, whereas, the Anglonggangri wolframite are mainly ferberite. Wolframite U-Pb dating yields direct timing of 11.0 ± 0.2 Ma and 9.7 ± 0.2 Ma for Jiaoxi and Anglonggangri tungsten mineralization, respectively. Ages together with enrichment of Nb, Ta, Ti, and Sc and depletion of Sr and most Eu anomaly within Anglonggangri wolframite confirm that metals and fluids were mainly derived from the ore-forming garnet-muscovite granite. Iron and Mn mapping of garnet in the garnet-muscovite granite suggests this granite has changed from the early Mn-enriched to late Fe-rich affinity. Therefore, initial ore-forming fluids exsolved from garnet-muscovite granite have Fe-rich composition, that was significantly modified during tungsten mineralization. Positive trend between Mg and Fe/(Fe + Mn) of wolframite indicates biotite breakdown from country rock of biotite-muscovite granite to add Fe and Mg into fluid during greisenization. Meanwhile, decomposition of plagioclase and K-feldspar provided Ca, Sr, and Eu to form late scheelite. Enrichment of Sr with positive Eu anomaly and decline of REE, Nb, and Ta are typical features of the highly evolved and modified fluid. Positive and negative Eu anomalies within the same wolframite grains reveal the oxidized character and fluctuating composition of fluid during wolframite precipitation. By contrast, negative Eu anomaly and low Mo abundance of scheelite indicate the reducing fluid during scheelite crystallization. Identification of metal and fluid sources for Anglonggangri ferberite highlights the evolved granites play more crucial roles on ferberite formation than early hübnerite crystallization and Fe addition from country rocks during hydrothermal interaction.

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Locality Pages

LocalityCitation Details
Jiaoxi deposit, Gar Co. (Ga'er Co.), Ngari, Tibet, China
Anglonggangri wolframite deposit, Rutog Co. (Ritu Co.), Ngari, Tibet, China

Mineral Occurrences

LocalityMineral(s)
Jiaoxi deposit, Gar Co. (Ga'er Co.), Ngari, Tibet, China Beryl, Biotite Monzogranite, Calcite, Chalcopyrite, Fluorite, Galena, Granite, Greisen, Molybdenite, Muscovite, Muscovite granite, Ophiolite, Porphyry, Pyrite, Quartz, Sandstone, Scheelite, Sericite, Shale, Slate, Sphalerite, Topaz, Wolframite Group
Anglonggangri wolframite deposit, Rutog Co. (Ritu Co.), Ngari, Tibet, China Biotite, Ferberite, Garnet Group, Granodiorite, Greisen, Ilmenite, K Feldspar, Muscovite, Muscovite granite, Muscovite-biotite granite, Pegmatite, Plagioclase, Quartz, Sandstone, Scheelite, Sericite, Siltstone, Slate, Syenogranite, Wolframite Group


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