小兴安岭地区航放特征及铀源条件分析  

Analysis of airborne gamma ray spectrum characteristics and uranium source condition of Xiaoxinganling area

作　　者：蔡文军[1,2,3] 冯春圆 安政伟[1,2] 汪哲 王景丹 全旭东 倪卫冲[1,2] 周子阳 CAI Wen-jun;FENG Chun-yuan;AN Zheng-wei;WANG Zhe;WANG Jing-dan;QUAN Xu-dong;NI Wei-chong;ZHOU Zi-yang(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang 050002;Key Laboratory for Geophysical Exploration Technology Center of Uranium Resource,Shijiazhuang 050002;Faculty of Earth Sciences,East China Institute of Technology,Nanchang 330013)

机构地区：[1]核工业航测遥感中心,石家庄050002 [2]铀资源地球物理勘查技术中心重点实验室,石家庄050002 [3]东华理工大学地球科学学院,南昌330013

出　　处：《矿产勘查》2019年第9期2328-2335,共8页Mineral Exploration

基　　金：中国地质调查局与黑龙江省国土厅共同出资的“高精度航空物探调查”计划项目(编号:12120110087007、1212011220560)资助

摘　　要：利用小兴安岭地区高精度航放资料,结合岩石放射性参数及地质矿产等资料,在系统分析航空放射场、航放异常特征的基础上,利用铀转换参数(初始铀、活性铀、铀迁移系数)研究了该区铀的活化、迁移以及富集特征。基于铀转换参数特征分析了已知砂岩型铀矿床(点)的铀源条件,多具有"Gu(偏)高值和B高值以及Hu低值"特征,依此特征结合其他地质资料圈定了小兴安岭地区可供进一步勘查的铀成矿有利区段。Using the latest airborne gamma-ray spectrum data and rock radioactive parameters of Xiaoxinganling Area,on the basic of systematically analyzed characteristics of airborne gamma-ray spectrum and airborne radioactive anomalies,the characteristics of uranium mobilization,migration and enrichment are analyzed,using uranium conversion parameters(initial uranium,mobile uranium and uranium migration coefficient).Based on characteristic of uranium conversion parameter,the author analyzed uranium source condition of the known sand-type uranium deposit,got a conclusion that it probably has characteristic of"higher Gu,high B and low Hu",and defined favorable uranium deposit area that can be further prospecting in Xiaoxingganling area combing with other geological data.

关 键 词：航放特征 铀源 砂岩型铀矿 小兴安岭地区 

分 类 号：P619.14[天文地球—矿床学]