• 责任者：Wang Rucheng (State Key Laboratory for Mineral Deposits Research ; School of Earth Sciences and Engineering ; Nanjing University ; Nanjing 210093 ; China) ; Xie Lei
• 刊名：Geological Journal of China Universities
• 出版年：2011
• 卷期：17(3)
• 关键词：锡矿 ; tin ores ; 副矿物 ; accessory minerals ; 南岭 ; Nanling Mountains
• 页码：p.368-380
• 图表：8 illus., 6 tables, 27 refs.
• 分类号：1001
• 出版序号：499
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

This paper deals with a systematic study on titanite from three granites with known extensive tin mineralization (Qitianling, Huashan and Guposhan) and other three granites currently unknown for important tin mineralization(Lianyang, Dadongshan and Jiufeng) . Electron-microprobe results reveal distinct compositions among three types of titanite. Early-magmatic titanite contains trace of tin (generally<1% SnO₂) , whereas late-magmatic titanite with 3 to 26%SnO₂ can be found in Qitianling, Huashan and Jiufeng. Hydrothermal titanite is typified by high Al and F contents. Comparison of SnO₂ contents for titanite from six granites shows that titanite, either magmatic or hydrothermal, from three tin granites (Qitianling, Huashan and Guposhan) is rich in SnO₂ with averages>0.4%, revealing their strong tin mineralizing potential; titanite of Lianyang and Dadongshan granites is very poor in SnO₂(<0.1%) , consistent with their barren feature.