松辽盆地西南部会田召地区砂岩型铀矿床地质特征与成矿模式  

Geology Feature and Prospecting Model of Sandstone Type Uranium Deposit in Huitianzhao Area of Southwestern Songliao Basin

作　　者：翁海蛟 蔡建芳[2] 王莉[1] 韦龙明[1] 

机构地区：[1]桂林理工大学地球科学学院,广西桂林541004 [2]核工业243大队,内蒙古赤峰024000

出　　处：《铀矿地质》2015年第3期377-383,394,共7页Uranium Geology

摘　　要：会田召地区位于松辽盆地西南部钱家店凹陷的北东部,区内的砂岩型铀矿赋存在姚家组辫状河道砂体中,平面上铀矿化产于姚家组下段舌状氧化带的尖灭端及相邻舌状体之间,垂向上铀矿化赋存于姚家组下段上、下两层氧化带之间的灰色砂体中。笔者通过矿区成矿地质条件分析,提出会田召地区铀矿化受沉积相、后生氧化、贯通断裂、剥蚀天窗、热液蚀变作用"五位一体"的联合控制,铀矿床具有多期、多阶段成矿的复成因特征。Huitianzhao area is located in the northeastern Qianjiadian depression of southwestern Songliao basin,the uranium mineralization occured in braided channel sand body of Yaojia formation.Horizontally,the mineralization distributes in the end of tongue shaped oxidation zones and lies in the grey sand body stratified vertically by oxidizing zones in lower member of Yaojia formation.Metallogenic geologic conditions analysis suggest that uranium mineralization in Huitianzhao area were controlled by sedimentary facies,interlayer oxidizing zone,fractures and epigenetic transformation and the deposit experienced multiple periods and multi-stage metalization.

关 键 词：会田召地区 姚家组 砂岩型铀矿 成矿模式 

分 类 号：P612[天文地球—矿床学]