Structure Styles of Mesozoic-Cenozoic U-bearing Rock Series in Northern China

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• 作者：Ruoshi JIN ; Peisen MIAO ; Xianzhang SIMA ; Jianguo LI ; Hualei ZHAO ; Fengqing ZHAO ; Xiaoxi FEN ; Yin CHEN ; Lulu CHEN ; Lijun ZHAO and Qiang ZHU
• 刊名：Acta Geologica Sinica - English Edition
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：90
• 期：6
• 页码：2104-2116
• 全文大小：7568K
• ISSN：1755-6724

文摘

In Northern China, sandstone-type uranium (U) deposits are mostly developed in Mesozoic-Cenozoic basins. These U deposits are usually hosted in unvarying horizons within the basins and exhibit typical U-forming sedimentary associations, which is referred to as U-bearing rock series. This study describes the structural features of U-bearing rock series within the main Mesozoic-Cenozoic U-producing continental basins in Kazakhstan, Uzbekistan, and Russia in the western segment of the Central Asian Metallogenic Belt (CAMB), and Northern China in the eastern segment of the CAMB. We analyze the basic structural conditions and sedimentary environments of U-bearing rock series in Northern China and classify their structural styles in typical basins into river valley, basin margin, and intrabasin uplift margin types. The intrabasin uplift margin structural style proposed in this study can be used to indicate directions for the exploration of sandstone-type U deposits hosted in the center of a basin. At the same time, the study of structural style provides a new idea for exploring sandstone-type U deposits in Mesozoic-Cenozoic basins and it is of great significance to prospecting of sandstone-type uranium deposits.