Mineralogical Characteristics and Genetic Significance of Sulvanite from the Large Barium Metallogenic Belt in Southern Qinling Mountains, China

详细信息   

• 责任者：Liu Jiajun (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Yang Dan
• 刊名：Journal of Mineralogy and Petrology
• 出版年：2008
• 卷期：28(2)
• 关键词：硫化物矿物 ; sulfides ; 秦岭 ; Qinling Mountains
• 页码：p.44-50
• 图表：1 illus., 2 tables, 29 refs.
• 分类号：0700
• issnNo：ISSN1001-6872
• isbnNo：CN51-1143/TD

摘要

///Sulvanite occurred in the Lower Cambrian silicalite and slate in the large barium metallogenic belt of southern Qinling Mountains. Samples were collected from witherite, barite, and barytocalcite ores. Electron microprobe analyses of 12 points on sulvanite gave the results as follows (%):Cu 47.1852.02 (50.44 on average); V 6.50 14.32(11.95 on average); Sn 0.0012.85(2.15 on average); S 31.77 34.34(33.29 on average); As 0.005.12(0.86 on average); Fe 0.003.27(0.77 on average);corresponding to the formula Cu3.04(V0.90, Sn0.07, Fe0.05, As0.04, Sb0.01)1.07(S3.98, Se0.02)4.00, and to a simplified formula Cu3 (V, Sn, As, Fe)S4. The mineral was of cubic system, a=0.539 2 nm. It was considered that the enrichment of sulvanite and vanadium in the belt would be favored by both heated organic matters and biodegradation.