Geochemical Characteristics on Salt Springs and Potash Perspective in Dogai Coring Area of Qiangtang Basin
详细信息
- 责任者：Niu Xinsheng (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Chen Wenxi
- 刊名：Geoscience
- 出版年：2013
- 卷期：27(3)
- 关键词：钾盐矿床 ; potash deposit ; 矿床地球化学 ; mineral deposit geochemistry ; 羌塘盆地 ; Qiangtang Basin
- 页码：p.621-628
- 图表：2 illus., 2 tables, 31 refs.
- 分类号：1002
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
Multi-layers and a large amount of gypsum and lithofacies paleogeographic data from predecessors indicate that Jurassic marine layers of Qiangtang basin have good saline condition. There is a series of Ca-chloride springs in Jurassic layers of Dogai Coring area. For this study 30 salt springs water samples were collected from field. Then, chemical composition, δ18O and δD of water samples were determined in laboratory. Geochemical analysis demonstrates that salt springs have high concentration of Na+, Cl-, Ca2+, K+, Li, Rb and poor concentration of Br, B.In addition, geochemical coefficients of water samples have obvious anomaly of potash mineral.δ18O and δD of salt springs reveal that springs water came from atmospheric precitation.