摘要
本文通过区域构造、地层、岩性、岩相古地理、铀矿化特征及其控制因素等方面研究，论述了伊犁盆地层间氧化带砂岩型铀矿成矿机制及成矿模式。在各种沉积环境标志综合分析和沉积韵律划分的基础上，建立了含矿主岩水西沟群冲积扇快速入湖的相模式，属湿地扇沉积体系，详细地划分了各亚相。确立了主矿层属滨湖三角洲亚相，编制了相应的图件。
Based on the study of regional tectonics,stratum, lithological character, factes paleoleography, uranium mineralization character and its controlling factors, this paper discusses the mineralization mechanism and model of interlayer oxrdation zone sandstone type uranium deposit in Yili basin. The factes model of mineral- bearing host shut xigou group alluvial apron which empties fastly into lake is set up after synthetically analysing rarieties of sedimentary environment marker and dividing sedimentary rhythm,and the sub-factes is also diided. The main ore layer belongs to delta sub-factes. The corresponding figures are drawn. Some proposals are suggested for dividing minerogenetic prospect province and future work. The south-west basin, especially the area between 512 and 511,is the key area for probe in future.
出处
《华东地质学院学报》
1996年第4期321-331,共11页
Journal of East China Geological Institute
关键词
层间氧化带
成矿模式
铀矿床
成矿机制
interlayer oxidation zone
sandstone type uranium deposit
mineraligation model
