松辽盆地东南部泉头组铀成矿条件与找矿方向探讨  

Discussion on Uranium Metallogenic Conditions and Prospecting Direction of Quantou Formation in Southeast Songliao Basin

作　　者：邓福理 宋海瑞[1] 周荣辉 刘锐 丁园 DENG Fuli;SONG Hairui;ZHOU Ronghui;LIU Rui;DING Yuan(Geological Party No.243,CNNC,Chifeng,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643-651,共9页Uranium Geology

基　　金：中国核工业地质局项目“松辽盆地南部奈曼-大安地区铀矿资源调查评价与勘查”(编号:201910);“砂岩型铀矿地球物理测井分层综合解释研究”(编号:2021-10-9);松辽盆地项目(编号:地HSL1403)联合资助

摘　　要：松辽盆地是我国北方重要的砂岩型铀矿产地之一,已在多个砂岩层中见有铀矿体。但是,目前研究地段多为南部的姚家组及北部的四方台组,对于东南部的泉头组研究较少。文章通过资料收集、样品分析、数据整理等方法,对松辽盆地东南部泉头组的铀成矿条件进行分析,并且探讨今后的找矿方向。结果表明,泉头组在铀源、构造条件、沉积相、含砂率、氧化带、水文地质等砂岩型铀成矿要素方面与盆地南部姚家组有较好的相似性;根据地浸砂岩型铀成矿远景预测准则,最终优选出Ⅱ级远景区1片、Ⅲ级远景区1片,且认为JBT-GYS地段、YDCZ地段是铀矿找矿的有利地段。Songliao Basin is one of the important sandstone-type uranium deposits base in northern China, and uranium ore bodies have been found in many sandstone layers. However, most of the current study areas are focused on the Yaojia Formation in the south and the Sifangtai Formation in the north, there are few studies on the Quantou Formation in the southeast. This paper analyzed the uranium metallogenic conditions of the Quantou Formation in the southeastern Songliao Basin by means of data collection, sample analysis, and data sorting, and discussed the prospecting direction in the future. The results showed that Quantou Formation has a similar metallogenic conditions with the Yaojia Formation in the southern part of the basin in terms of uranium source, structural conditions,sedimentary facies, sand content, oxidation zone, hydrogeology and other sandstone-type uranium metallogenic elements. According to the in-situ leaching sandstone-type uranium metallogenic prospect prediction criteria, one grade Ⅱ prospective area and one grade Ⅲ prospective area were finally selected. At the same time, the JBT-GYS section and the YDCZ section were considered to be favorable sections for uranium prospecting.

关 键 词：砂岩型铀矿 泉头组 成矿条件 远景预测 松辽盆地东南部 

分 类 号：P619.14[天文地球—矿床学]