• 责任者：Xue Wei (State Key Laboratory of Geological Processes and Mineral Resources ; School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Xue Chunji
• 刊名：Geological Review
• 出版年：2009
• 卷期：55(3)
• 关键词：铀矿 ; uranium ores ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.361-369
• 图表：7 illus., 3 tables, 34 refs.
• 分类号：1001
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

Uranium mineralization is commonly associated with organic matter in many Meso—Cenozoic basins, and their intrinsic relationship is an interested subject to many ore deposit researchers. Such relationship is investigated in the uranium-mineralized sandstones of the lower part of the Zhiluo Formation (Jurassic) in the Dongsheng—Zhungeer area on the northeastern margin of the Ordos Basin. Uranium concentrations in the mineralized sandstones are two orders higher than in the uranium-bearing shales. The data indicate that the CO₂ in the mineralizing fluids was derived from oxidation of organic matter and the water was from circulating basinal fluids that experienced interaction with organic matter. Uranium mineralization resulted from circulation of basinal fluids in sandstones and associated oxidation and decomposition of organic matter.