• 责任者：Wang Xinyu (Faculty of Earth Science ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Mingchao
• 刊名：Geoscience
• 出版年：2013
• 卷期：27(3)
• 关键词：金矿 ; gold ores ; 钼矿 ; molybdenum ores ; 花岗斑岩 ; granite porphyry ; 广西 ; Guangxi
• 页码：p.585-592
• 图表：6 illus., 1 table, 31 refs.
• 分类号：1001
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

     The Xinping granite-porphyry occurring in the Xinping gold mining area is located in the middle part of the Dayaoshan Au metallogenic belt, eastern Guangxi. The results suggest that the Au-Mo-polymetallic mineralization is closely related to the granitic igneous activity. Zircons of the granitic porphyry are analyzed using LA-ICP-MS U-Pb isotopic method, which gives a weighted mean ²⁰⁶Pb/²³⁸U age of (462.9 ± 6.4) Ma. It reveals a mid-Ordovician magmatic timing, providing a lower constraint for the mineralization age.