• 责任者：Li Zaihui (Chengdu Institute of Geology and Mineral Resources ; Chengdu 610081 ; China) ; Yan Wu
• 刊名：Sedimentary Geology and Tethyan Geology
• 出版年：2012
• 卷期：32(3)
• 关键词：铝土矿 ; bauxite deposit ; 矿物学 ; mineralogy ; 岩石地球化学 ; lithogeochemistry ; 重庆 ; Chongqing
• 页码：p.87-100
• 图表：6 illus., 2 tables, 52 refs.
• 分类号：1001
• issnNo：ISSN1009-3850
• isbnNo：CN51-1593/P

The Nanchuan-Wulong bauxite deposit in Chongqing are ascribed to the karst bauxite deposit hosted in the southern Chongqing-northern Guizhou bauxite belt. The mineralogical analysis on the basis of microscopic examination, X-ray power diffraction patterns, MAL and SEM-EDS revealed that diaspore, kaolinite and chlorite are the major minerals in the bauxite ores with the minor minerals such as illite, boehmite, gibbsite, chamosite, siderite, hematite, goethite, pyrite, anatase, rntile, apatite, quartz zircon, calcite, feldspar and small amounts of rare-earth minerals. Geochemically, the major chemical compositions in the bauxite ores consist of A1₂0₃, TFeO, SiO₂ and TiO₂. The elements REE, Zr, Hf, Nb, Ta, Th, Sc, Li and Ga are enriched as well in the bauxitization processes.