基于重磁资料的铀矿预测研究——以松辽盆地西部为例  

The Prediction of Uranium Deposits Based on Gravity and Magnetic Data:Exemplified by Western Songliao Basin

作　　者：刘燕戌 路文芬 杨冬红 LIU Yan-xu;LU Wen-fen;YANG Dong-hong(China Aero Geophysical Survey and Remote Sensing Center for Nature Resources,Beijing 100083;International Centre of Geoscience Research and Education in Northeast Asia,Jilin University,Changchun,Jilin 130026)

机构地区：[1]中国自然资源航空物探遥感中心,北京100083 [2]吉林大学东北亚国际地学研究与教学中心,吉林长春130026

出　　处：《地球学报》2021年第1期63-73,共11页Acta Geoscientica Sinica

基　　金：中国地质调查局地质调查项目“松辽盆地及外围航空物探调查”(编号:DD20190028)资助。

摘　　要：为了充分挖掘重磁资料在铀矿预测中发挥的作用,探索重磁学与铀矿勘探学交叉学科的前缘创新方向,本文在研究松辽盆地西部航磁、重力资料的基础上,系统分析了断裂、背斜、岩浆岩等铀成矿地质要素的典型重磁异常特征,总结了以重磁特征为主的找矿标志,结合铀矿化资料,进行了铀成矿远景预测。研究区共圈定5处铀成矿远景区,指出大庆长垣西缘、松原、科左中旗、白城—镇赉、齐齐哈尔等地区具有较好的铀成矿前景,应在下一步勘探部署中予以关注。The western area in Songliao basin has a certain potential of uranium resources.In order to fully excavate the effect of gravity and magnetic data in uranium ore prediction and explore the frontier innovation direction of interdisciplinary subjects of gravity and magnetism and uranium exploration,the authors systematically analyzed the typical characteristics of faults,anticlines and magmatic rocks which belong to the geological elements based on the study of aeromagnetic and gravity data.The authors summarized the prospecting criteria mainly based on gravity and magnetic characteristics,then predicted the prospect of uranium mineralization combined with uranium mineralization data.Five uranium metallogenic prospect areas were delineated in the study area.It is pointed out that the western margin of Daqing placanticline,Songyuan,Horqin Left Wing Middle Banner,Baicheng–Zhenlai and Qiqihar have good uranium metallogenic prospects,and hence attention should paid to these areas in the future exploration deployment.

关 键 词：重磁异常 成矿地质要素 铀矿预测 松辽盆地西部 

分 类 号：P631.125[天文地球—地质矿产勘探] P631.222[天文地球—地质学]