Discussion on Tectonic Evolvement to Dominating Process of Sandstone Type Uranium Deposits Forming in Kumishi Basin, Xinjiang

详细信息   

• 责任者：Chen Fenxiong （Geological Party No.216 BOG CNNC ; Urumqi 830011 ; China） ; Wang Chengwei
• 刊名：Xinjiang Geology
• 出版年：2008
• 卷期：26(2)
• 关键词：铀矿 ; uranium ores ; 砂岩型矿床 ; sandstone—type deposits ; 新疆 ; Xinjiang
• 页码：p.176-179
• 图表：3 illus., 4 refs.
• 分类号：1003
• issnNo：ISSN1000-8845
• isbnNo：CN65-1092/P

摘要

///This paper thinks Kumishi Basin is a composite Meso-Cenozoic basin. Its tectonic evolution Experienced a tension-fault sag (T₃-J₂);compression-uplifting (J₃-K₂); regional subsidence (E-N₁) and extrusion strike-slip (N₂-Q) four stages. In the history of uranium mineralization tectonic movement controls the formation of interlayer oxidization zone and uranium mineralization by analysis the stratum, transformation the underground hydrodynamic conditions. The authors consider that the interlayer oxidization zone in Kumishi Basin is divided into two stages by Neotectonic movement, which was ancient interlayer oxidization zone and modern interlayer zone. It is advantage which experienced the two stages for uranium mineralization. The discussion on the relationships of tectonic evolution and sandstone type uranium mineralization is useful for uranium prospecting in Meso-Cenozoic basins in middle Tianshan Mountains.