Title: U-Pb Isotope Age of Zircons in Gold-bearing Quartz Veins from the Hetai Gold Deposit, Western Guangdong, China: Constraints on the Timing of Gold Metallogenesis
Abstract: The Hetai gold deposit is strictly controlled by ductile shear zones. Gold mineralization occurred mainly in the gold quartz vein stage and the gold sulfide stage of the hydrothermal alteration mineralization epoch. The two types of ore are altered mylonites and sulfide-rich quartz veins. A U-Pb isotope age of individual zircon grains in sulfide-rich gold-bearing quartz veins show that the early Caledonian is the main mineralization epoch, and the metallogenetic age is 492±16Ma. A U-Pb isotopic age of individual zircon grains of the Yanshanian Wucun granite in the mineral deposit region is 153.6±2.1Ma. Combining the isotopic data of previous studies, we hold that the Hetai gold deposit is one component part of the product of tectonism, metamorphism, magmatism and metallogenesis of the South China orogenic belt, and is an orogenic gold deposit that formed in a synorogenic period in the early Caledonian. The deposit suffered hydrothermal overprinting in the Yanshanian period.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 7
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