Mineralization and Genesis of the Fanjiabu Gold Deposit in the Sulu Ultrahigh Pressure Metamorphic Terrane, with a Comparison to the Gold Mineralization in the Jiaobei Terrane

• 责任者：Li Jianwei (State Key Laboratory of Geological Processes and Mineral Resources ; China Univeristy of Geosciences ; Wuhan 430074 ; China) ; Bi Shijian
• 刊名：Geological Journal of China Universities
• 出版年：2010
• 卷期：16(2)
• 关键词：金矿 ; gold ores ; 山东 ; Shandong Province
• 页码：p.125-142
• 图表：12 illus., 4 tables, 54 refs.
• 分类号：1001
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

The quartz vein-type Fanjiabu gold deposit is economically the most important gold deposit in the Sulu ultrahigh pressure metamorphic terrane, Jiaodong Peninsula. Cathodoluminescence images and trace element and U-Pb isotope compositions by laser ICP-MS indicate that zircons extracted from auriferous quartz veins are exclusively inherited magmatic zircons from wall rocks of gold veins, namely the Neoproterozoic biotite monzogranite.  The results of this investigation and previous studies suggest that gold mineralization in the Sulu and Jiaobei terranes was contemporaneous, taking place at ca. 120 Ma and coincident temporarily with lithospheric thinning of the North China craton.