新疆伊犁盆地南缘层间氧化带发育特征及其与铀矿化的关系

Development characteristics of interlayer oxidation zone and its relation to uranium mineralization at southern margin of Yili basin, Xinjiang Autonomous Region

在伊犁盆地南缘产出一条距山前 2 -5km、自东向西延伸近百公里的铀及伴生元素成矿带。本文从已知铀矿床的成矿环境和特征出发 ,阐述了伊犁盆地南缘层间氧化带的空间分布和层间氧化带的控矿规律。通过不同层位的层间氧化带含矿性对比及同一层位不同地段的层间氧化带含矿性对比 ,总结出伊犁盆地南缘层间氧化带发育特征及其与铀矿化关系 ,为在盆地内寻找层间氧化带砂岩型铀矿床提供了依据。

On the basis of the metallogenic environments and metallogenic characteristics, this paper expounds the spatial distribution and ore controlling laws of interlayer oxidation zone at the southern margin of Yili basin. By the comparsion of uranium mineralizations of interlayer oxidation zones in different stratigraphic horizons, and in different sections of the same stratigraphic horizon, the authors summarize the relationship between the development characteristics and uranium mineralization at the southern margin of Yili basin providing a foundation for locating interlayer oxidation zone sandstone type uranium deposits.