广西岑溪市龙湾铅锌矿床CSAMT地球物理特征及深部找矿预测OA
CSAMT Geophysical Characteristics and Deep Prospecting Prediction of the Longwan Lead-Zinc Deposit,Cenxi City,Guangxi
龙湾矿区奥陶系地层为主要含矿地层.控矿层位呈背斜构造,矿体主要赋存在背斜的轴部,控制深度较浅,背斜的翼部含矿情况尚不清楚.为探明翼部深部是否含矿,在矿区开展了可控源音频大地电磁测深(CSAMT)研究.结果表明,CSAMT法能有效识别深部中低阻矿致异常,圈定低阻异常4处,在-500 m标高发现铅锌矿体,矿体真厚度近17 m,为龙湾矿区深部找矿提供了可靠物探依据和方法示范.
The Ordovician strata are the main ore-bearing formations in the Longwan Mining Area.The ore-controlling horizon occurs in an anticlinal structure,with orebodies mainly hosted in the anticlinal axis at a relatively shallow depth;the ore-bearing potential of the anticlinal flanks remains unclear.To verify whether ore exists at depth in the flanks,a controlled-source audio-frequency magnetotelluric sounding(CSAMT)survey was conducted in the mining area.The results show that the CSAMT method can effectively identify deep medium-low resistivity anomalies caused by mineralization.Four low-resistivity anomalies were delineated,and lead-zinc orebodies were intersected at the-500 m elevation level,with a true thickness of nearly 17 m.This provides reliable geophysical evidence and methodological demonstration for deep prospecting in the Longwan Mining Area.
唐艳萍;赵毅;曾晖;王建超;黄理善
中国有色桂林矿产地质研究院有限公司,广西桂林 541004中国有色桂林矿产地质研究院有限公司,广西桂林 541004中国有色桂林矿产地质研究院有限公司,广西桂林 541004中国有色桂林矿产地质研究院有限公司,广西桂林 541004中国有色桂林矿产地质研究院有限公司,广西桂林 541004
天文与地球科学
找矿预测CSAMT铅锌矿床背斜翼部龙湾铅锌矿
prospecting predictionCSAMTlead-zinc depositanticlinal flankLongwan lead-zinc mine
《云南冶金》 2026 (2)
19-25,7
广西科技基地和人才专项(AD24010023)中色桂林院科创基金(KJCXTD202407)
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