《Table 5 U content and chemical analyses of the braided delta plain deposits》
本系列图表出处文件名:随高清版一同展现
《"Dual Control of Depositional Facies on Uranium Mineralization in Coal-bearing Series: Examples from the Tuanyushan Area of the Northern Qaidam Basin, NW China"》
The distributary channel deposits are connected with the upstream braided river channel and are vertically constricted by inter-distributary bay deposits.The interdistributary bay deposits not only provide the stable waterresisting layers enabling the formation of the typical U-rich lithological association(coal-U-coal)in this area,but also directly absorb a small amount of uranium(Wang Dan et al.,2015).The sandstones in this type of facies are characterized by an excellent connectivity and stratification,which are favorable for the flow of U-rich fluids.In this area,this type of sandstone has high concentrations of uranium(up to 70 ppm),and is considered the main source of U for extraction(Fig.7;Table 5).The braided river delta plain,as the main coalforming environment in the study area,is characterized by an association of the coal-uranium deposits.
图表编号 | XD0017172800 严禁用于非法目的 |
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绘制时间 | 2018.04.01 |
作者 | GUO Biao、SHAO Longyi、WEN Huaijun、HUANG Guangnan、ZOU Mingjun、LI Yonghong |
绘制单位 | College of Geosciences and Survey Engineering, China University of Mining and Technology、School of Resources and Environment, North China University of Water Resources and Electric Power、College of Geosciences and Survey Engineering, China University of M |
更多格式 | 高清、无水印(增值服务) |