A New Potential Caledonian–Indosinian Ore Concentration Area: Evidence from Diagenesis and Mineralization Ages of the Miao'ershan–Yuechengling Region

<正>Objective The Miao’ershan–Yuechengling composite granite,located in northern Guangxi at the western section of the Nanling Range,is a multi-period and multi-stage composite pluton with an exposed area of more than 3000km2(Fig.1).Paleozoic and Proterozoic strata are exposed around it,and magmatic activities mainly occurred during