NURE航空计划回顾与新时代航空γ能谱勘查启示

国家铀资源评价(NURE)计划实现了覆盖美国本土和阿拉斯加的1:250000 NTMS图幅航空γ能谱测量和航磁测量,通过简要回顾该计划历程,重点针对NURE中航空地球物理勘查(航空y能谱和航磁测量),讨论了航空地球物理勘查中测量技术、数据处理及解释方法等.NURE航空测量在铀矿勘查和辐射环境评价、洲际航空地球物理编图等...

A review of NURE airborne program and suggestions on airborne gamma-ray spectrometry survey in the new era

This paper briefly reviews the history and the overall work deployment of the U.S.National Uranium Resource Evaluation(NURE)program,with emphasis placed on the key techniques of airborne exploration.The airborne exploration included airborne gamma-ray spectrometry(AGRS)and aeromagnetic survey,which collected radiometric and magnetic data over the conterminous United States and Alaska.The airborne program systematically covered each 1°by 2°national topographic map series(NTMS)quadrangles,which were used to locate potential radioactive mineral deposits.The program played an important role in uranium resource and environmental radiation level evaluation,which has far-reaching definition and meaning.The experience and practices of the program should be used for reference.According to the current status of China's survey,top-level design for AGRS should be strengthened.This paper also proposes a national program of AGRS surveys for achieving coverage of terrestrial radioactivity and building a measurement and monitoring system with Chinese characteristics.