AMT在龙川江盆地南部铀矿勘查中的应用及效果分析  

APPLICATION AND EFFECT ANALYSIS OF AMT IN URANIUM EXPLORATION IN THE SOUTHERN LONGCHUAN RIVER BASIN

作　　者：李松柏 倪光清 唐喜 王亮 谢梦谦 杨晟 朱广飞 伍皓[3] LI Song-bai;NI Guang-qing;TANG Xi;WANG Liang;XIE Meng-qian;YANG Sheng;ZHU Guang-fei;WU Hao(Yunnan Nuclear Industry 209 Geological Brigade,Kunming 650032;Yunnan Exploration-Assessment and Study Center of Three Rare Mineral Resources,Kunming 650032;Chengdu Center,China Geological Survey,Chengdu 610081)

机构地区：[1]云南省核工业二〇九地质大队,云南昆明650032 [2]云南省三稀矿产资源勘查评价工程研究中心,云南昆明650032 [3]中国地质调查局成都地质调查中心,四川成都610081

出　　处：《云南地质》2024年第S01期347-353,共7页Yunnan Geology

基　　金：中国地质调查局项目(DD20160133)和(DD20190122)资助。

摘　　要：为了解龙川江盆地南部地质特征及砂岩型铀矿成矿规律,在该区开展了AMT(音频大地电磁测深)测量工作,大致查明了研究区玄武岩盖层、盆地基底以及构造等地质特征;对低阻含水区段进行研究并预测了7处铀成矿有利区段,经钻孔验证,在3处成矿有利区段取得了较好的找矿成果。测量结果表明AMT在研究区探测玄武岩盖层、盆地基底以及地下水富集区域具有良好的效果,适用于砂岩型铀矿勘查工作,可指导勘探钻孔的施工布置。In order to understand the geological characteristics and the metallogenic regularity of sandstone-type uranium deposits in the southern Longchuan River Basin,the AMT(Audio Magnetotelluric Sounding)survey was carried out in this area.The basalt cover,basin basement and structural features were roughly identified.Research was conducted on low resistance water bearing sections,and 7 favorable uranium mineralization sections were predicted.Through drilling verification,good prospecting results were achieved in 3 favorable mineralization sections.The measurement results show that AMT has good performance in detecting basalt cap,basin basement and groundwater enrichment areas in the study area,and is suitable for the exploration of sandstone type uranium deposits,which can guide the construction layout of exploration boreholes.

关 键 词：AMT测量 EH4 砂岩型铀矿 龙川江盆地 云南 

分 类 号：P619.14[天文地球—矿床学]