• 责任者：Li Botao (School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zhao Yuanyi
• 刊名：Geoscience
• 出版年：2012
• 卷期：26(1)
• 关键词：钾盐矿床 ; potash deposit ; 青海 ; Qinghai Province
• 页码：p.71-84
• 图表：6 illus., 6 tables, 31 refs.
• 分类号：1002
• issnNo：ISSN1000-8527
• isbnNo：CN11-2035/P

Qarhan salt lake is the largest potash producing area in China. Based on the principle that mineral composition in potash deposits could determine potassium mining process,  the mineral composition, chemical composition and physical parameters of solid potash strata were studied by analyzing the samples from the field of Bieletan section and Qarhan section in Qarhan salt lake. The results show that the characteristics are as following: the main potassium mineral from Bieletan is polyhalite, and crystals of salt minerals are shaped perfectly and arranged closely,  and the resource quantity is about 250 million tons above the 22.42 m in Bieletan section. The main potassium minerals are carnallite, and crystals of salt minerals are loosely arranged, which indicates that the last phase of liquefaction is available.