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Magmatic controls on variable Cu mineralization at the cluster scale: Wubaduolai and Zhunuo porphyry Cu deposits, southern Tibet
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DOI：10.1016/j.oregeorev.2026.107403.png)
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Abstract
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• Zhunuo and Wubaduolai porphyry Cu deposits formed contemporaneously (∼16–15 Ma) from similar hybrid magma sources. • Zhunuo magmas were emplaced shallower, with higher oxygen fugacity and water content than Wubaduolai magmas. • The extent of ultrapotassic melt involvement is a crucial factor, being significantly higher at Zhunuo (∼20%) than at Wubaduolai (∼5–10%). • Combined shallow emplacement, high fO2, high H2O, and ultrapotassic melt input are key for economic porphyry Cu formation in post-collisional settings.
Keywords:
Mineralization potential
Magmatic conditions
Ultrapotassic melts
Porphyry Cu deposits
Gangdese metallogenic belt
Southern Tibet
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