Salt Minerals and Their Genesis of the Permian Fengcheng Formation in Urho Area, Junggar Basin

详细信息   

• 责任者：Jiang Yiqin (Department of Geology ; Northwest University ; Xi’an 710069 ; China) ; Wen Huaguo
• 刊名：Journal of Mineralogy and Petrology
• 出版年：2012
• 卷期：32(2)
• 关键词：钾盐矿床 ; potash deposit ; 准噶尔盆地 ; Junggar Basin
• 页码：p.105-114
• 图表：5 illus., 2 tables, 23 refs.
• 分类号：1002
• issnNo：ISSN1001-6872
• isbnNo：CN51-1143/TD

摘要

///In the Urho area of Junggar Basin, the Permian Fengcheng Formation is an important exploration stratam characterized by very special deep lake salt-bearing volcanic-sedimentary formation. Based on the core observation, thin section identification, scanning electron microscopy, X- ray diffraction and chemical analysis, a moredetailed study was made on the characteristics of the salt minerals and their associated minerals in the Fengcheng Formation. Salt minerals in the Fengcheng Formation consist of reedmergnerite, shortite, trona, ankerite and associated with anhydrite, gypsum, chalcedony, pyrite and smectite. It was indicated that the Fengcheng Formation were related to the interphase volcanic eruption and lake hydrothermal exhalative activities in the same period. Their characters and genesis can be compared with the lacustrine exhalative rocks of Xiagou Formation in Jiuxi Basin and the modern deep lacustrine hydrothermal exhalative deposition in Tanga Nika Lake, East African rift Valley.