NURE航空计划回顾与新时代航空γ能谱勘查启示

doi:10.11720/wtyht.2021.1322

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摘要

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∶250 000 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γ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领域发挥了巨大作用,产生了意义深远的影响。在总结NURE航空测量经验和做法的基础上,针对我国航空γ能谱测量勘查现状,建议从国家层面进行顶层设计,尽快实施我国陆域范围内的航空γ能谱和航磁框架性测量,实现对我国陆域航空γ能谱测量全覆盖,建设具有中国特色的航空γ能谱测量与监测体系。

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	李敬敏
	米耀辉
	骆遥

关键词 ： NURE计划, 航空γ能谱, 铀矿勘查, 航空地球物理, 放射性

Abstract：

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.

Key words： U.S. National Uranium Resource Evaluation (NURE) program airborne gamma-ray spectrometry uranium prospecting airborne geophysical surveys radioactivity

收稿日期: 2020-06-23 修回日期: 2020-12-30 出版日期: 2021-04-20

ZTFLH:

P631

基金资助:国家重点研发计划“深地资源勘查开采”重点专项项目(2017YFC0602100);国家重点研发计划“深地资源勘查开采”重点专项项目(2017YFC0602000);中国地质调查局地质调查项目(DD20191001);中国地质调查局地质调查项目(DD20189410);中国地质调查局地质调查项目(DD20190436)

通讯作者: 骆遥

作者简介: 李敬敏(1983-),女,高级工程师,长期从事航空物探/遥感信息化建设及地图制图学研究工作。Email: jingminl@163.com

引用本文:

李敬敏, 米耀辉, 骆遥. NURE航空计划回顾与新时代航空γ能谱勘查启示[J]. 物探与化探, 2021, 45(2): 394-402.
LI Jing-Min, MI Yao-Hui, LUO Yao. A review of NURE airborne program and suggestions on airborne gamma-ray spectrometry survey in the new era. Geophysical and Geochemical Exploration, 2021, 45(2): 394-402.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.1322 或 https://www.wutanyuhuatan.com/CN/Y2021/V45/I2/394

Fig.1 新墨西哥州区块1°×2°图幅及地形

Fig.2 新墨西哥州区块测网和飞行高度^{[9,10,11,12,13,14,15,16,17,18,19,20,21]}

Fig.3 美国能源部的航空放射性标定装置^[23]

Fig.4 北美γ射线空气吸收剂量率^[5]

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