【摘要】 在分析伊犁盆地南缘水西沟群各地层岩石物性特征的基础上,结合盆地地形、地貌、沉积环境,建立和厘定了盆地水西沟群沉积体系,进而分析沉积体系的演化规律,指出在这一系列演化过程中砂体发育最好的是河流相及扇三角洲平原相至前缘相.结合层间氧化带砂岩型铀矿床成矿地质规律,分析了盆地铀成矿前景.更多还原

【Abstract】 Based on the analysis of the petrpphysical properties of Shuixigou group in Southern Yili Basin,and the topography,landforms and sedimentation settings of the Basin,we established sedimentation system of Shuixigou group in the Basin,and then analysed the evolution of the sedimentation system.We suggest that sandstones occurred more frequently in fluvial facies and fan-delta-plain and-front facies.Finally,we analyse the prospect of the uranium resources in the Basin according to the geologic rules of uranium deposit formed sandstones in the interbedded oxidation sections.更多还原