新疆伊宁北部地区含铀煤砂岩型铀矿找矿方向探讨

新疆伊宁地区北部处在伊犁盆地铀成矿区内,分布有苏鲁铀矿床、新城子、南台子、干沟、皮里青、克山奇5个铀矿点和众多放射性异常点带。文章在对前人资料收集及整理的基础上,通过铀成矿条件分析,认为区内铀成矿与大地构造环境、地层、水文地质条件、铀源相关。在综合分析苏鲁矿床成矿地质条件、地球物理异常特征的基础上,建立了砂岩型铀矿物理-数学预测模型,结合野外地质工作成果,对该区进行了成矿远景区预测,筛选了铀矿远景区1片,为研究区下一步铀矿找矿工作提供依据。

Discussion on Prospecting Directions of Uranium Deposit in Coal Measure Strata in the North of Yining Area,Xinjiang

The northern part of Yining,Xinjiang province is located in the uranium mineralization area of Yili basin,and developed five uranium deposits of Sulu Xinchengzi,Nantaizi,Gangou,Piliqin,Keshanqi and many radioactive anomalies.Based on the accomplishment of predecessors,the uranium mineralization conditions were analyzed in this paper and the uranium mineralization was believed to be related to the tectonic environment,strata,hydrogeological conditions and uranium source.By studying the ore-forming geological feature and geophysical anomalies of Sulu uranium deposit,a physical-mathematical prediction model was established for the uranium deposits in coal measure strata.With the results of field geological work,one prospect was predicted,which provide a reference for uranium exploration in the north of Yining area.