• 责任者：Cui Xiaoliang (College of Earth Sciences ; Chengdu University of Technology ; Chengdu 610005 ; China) ; Duo ji
• 刊名：Acta Geoscientica Sinica
• 出版年：2012
• 卷期：33(4)
• 关键词：多金属矿 ; polymetallic ores ; 侵入体 ; intrusions ; 地球化学 ; geochemistry ; 西藏 ; Tibet
• 页码：p.537-545
• 图表：4 illus., 1 table, 19 refs.
• 分类号：1001
• issnNo：ISSN1006-3021
• isbnNo：CN11-3474/P

The Pusangguo copper-polymetallic deposit is located in Nanmulin volcanic basin. Petrographic and geochemical studies of granodiorite, granodiorite-porphyry and diorite-porphyrite show that the intrusive rocks are of calc-alkaline series, with ω（SiO₃） ranging from 59.08% to 67.28%, ω（Al₂O₃） ranging from 15.38% to 16.86% ω（MgO） ranging from 1.52% to 4.06%, and co（TFeO） ranging from 1.2% to 3.46%. Petrographic and geochemical studies indicate that granodiorite-porphyry and diorite-porphyrite were produced by Tethys subduction towards North Lhasa tectonic body, and granodiorite was formed in an extension setting of post-collision in Tibet Plateau.