大兴安岭南部五十家子-新城子地区铀矿控矿因素分析和找矿靶区优选  

Analysis of Uranium Ore Controlling Factors and Prospecting Targets Screening in Wushijiazi Xinchengzi Area,Southern Daxing’anling

作　　者：李杨[1] 王世成 郝晓飞[1] 王常东[1] 王晓奇[1] 张韶华 LI Yang;WANG Shicheng;HAO Xiaofei;WANG Changdong;WANG Xiaoqi;ZHANG Shaohua(Geological Party No.243,CNNC,Chifen,Inner Mongolia 024000,China)

机构地区：[1]核工业二四三大队,内蒙古赤峰024000

出　　处：《铀矿地质》2022年第4期717-731,共15页Uranium Geology

基　　金：中国核工业地质局铀矿调查评价项目“河北省沽源县-内蒙古突泉县铀-多金属矿资源调查评价与勘查”(编号:202001)资助。

摘　　要：五十家子-新城子地区位于大兴安岭南段,属滨太平洋成矿域华北陆块铀成矿省,处于扎兰屯远景带南端,是我国5个与火山岩有关的热液型铀矿集区之一。文章通过基础地质研究及铀矿资源调查评价等工作,总结了铀成矿的时空规律、矿化类型,梳理区内的主要控矿因素,继而总结出“岩性复杂、切壳断裂及次级断裂、脉岩充填、多期蚀变叠加”多点控矿要素的新认识。根据新认识开展钻探验证,发现多个铀工业孔,并优选出曹家营子和五间房两处找矿靶区,显示该区找矿前景广阔。As one of the hydrothermal uranium-polymetallic metallogenic belts related to volcanic rocks in China,Wushijiazi-Xinchengzi area is located at the southern Greater Hinggan Mountains which fall into the Zalantun metallogenic prospect belt of north China continental block uranium-polymetallic metallogenic province in Pan Pacific metallogenic domain.After basic geological research and uranium resources investigation and evaluation,the authors summarized space-time pattern and mineralization types of uranium mineralization,sorted out the main ore-controlling factors in the area,and proposed a new understanding of multi-point ore-controlling elements of"multifaceted rock cover,crust-cut fault,vein rock filling,alteration superposition and mineralization enrichment".According to the new understanding,a number of profitable uranium-polymetallic boreholes were finished,two prospecting target areas of Caojiayingzi and Wujianfang were selected,indicating broad prospecting prospects in this area.

关 键 词：控矿因素 靶区优选 铀矿 五十家子-新城子地区 

分 类 号：P619.14[天文地球—矿床学]