The Correlation between Sandstone Uranium Ore-Body and the Coal Bed in Jurassic System, Dongsheng, Inner Mongolia
详细信息
- 责任者：Liu Zhengbang (No.208 Geological Party ; CNNC ; Baotou 014010 ; China) ; Jiao Yangquan
- 刊名：Earth Science Frontiers
- 出版年：2013
- 卷期：20(1)
- 关键词：铀矿 ; uranium ores ; 煤层 ; coal seam ; 内蒙古 ; Inner Mongolia
- 页码：p.146-153
- 图表：illus., 2 tables, 16 refs.
- 分类号：1001
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Much more attention has been paid to the relationship of the metallogenesis and the organics accumulation formation.The relationship between the uranium ore-body in sandstone and the coal bed in Dongsheng uranium ore district,Ordos Basin,is still unknown.According to many years of exploration,the paper suggests that the plan location of the uranium ore-body is overlapping or near that of the coal bed in Dongsheng uranium ore district.There are coal beds over or under the uranium ore-body in the section,and the vertical distance between them is 2-15m.The depth changes of the uranium ore-body respond well to that of the coal beds,and there are some inner relationships between the uranium ore-body and the coal bed.The acidolysis hydrocarbon from the uranium-bearing bed is CH4,the same as that in the coal bed gas.The mean content of the acidolysis hydrocarbon is 569.43 μ L / kg in the uranium ore,174.93 μ L / kg in the uranium-bearing sandstone and 156.12 μ L / kg in non-uranium sandstone.The coal bed,especially the coal bed gas,is an important reductant during the uranium mineralization in Dongsheng uranium-bearing bed,and the coal bed and its depth changes may serve as exploration indicators for the sandstone-type of uranium deposits.
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