物探与化探2023，Vol.47Issue(6)：1649-1656,8.DOI:10.11720/wtyht.2023.0296
综合地气测量在湘南仁里外围稀有金属矿勘查中的应用
The application of an integrated geogas prospecting for exploring rare metal deposits in the periphery of the Renli mining area,southern Hunan Province
摘要
Abstract
In this study,six survey lines were deployed in the Huangbaishan survey area in the periphery of the Renli mining area in southern Hunan Province.An integrated geogas prospecting was applied to explore granite pegmatite-type rare metal deposits in the study area.Based on the characteristics of soil X-ray fluorescence and geogas anomalies above the known pegmatite veins in the mining area,this study captured five soil X-ray fluorescence anomaly zones aligning with the formation trend,with the(Nb+Ta+Rb)cumula-tive value obtained from X-ray fluorescence measurements as the primary prospecting indicator.The Nos.1～4 anomaly zones exhibit consistent spatial positions with the known pegmatite veins.Accordingly,this study inferred the positions,trends,and lengths of possi-ble pegmatite veins,and a possibility of extension for the known veins based on the anomaly length.The No.5 anomaly zone discov-ered on the south side of the survey area,with a length exceeding 1 000 m,serves as a new prospecting target.Geogas prospecting was conducted along the No.11 survey line in the middle of the No.4 anomaly zone with a length of over 1 500 m,capturing the geogas a-nomalies of elements Li,Be,and Nb that reflect the deep mineralization information of pegmatite veins.This confirms that pegmatite veins in the survey area have significant extensions towards the deep part.关键词
土壤X射线荧光测量/(Nb+Ta+Rb)衬度累加值/地气测量/深部含矿信息/花岗伟晶岩稀有金属矿Key words
soil X-ray fluorescence measurement/(Nb+Ta+Rb)constrast cumulative value/geogas prospecting/deep ore-bearing in-formation/granite pegmatite-type rare metal deposit分类
天文与地球科学引用本文复制引用
甘雪军,周四春,刘晓辉,王登红,文春华..综合地气测量在湘南仁里外围稀有金属矿勘查中的应用[J].物探与化探,2023,47(6):1649-1656,8.基金项目
国家重点研发计划项目(2017YFC0602701) （2017YFC0602701）
湖南省重点领域研发计划项目(2019SK2261) （2019SK2261）
