摘要
通过多个参数的综合地球物理测井技术,以钻探编录资料和实验室化验资料为约束条件,开展有色金属地质调查测井资料的综合处理与解释,来揭示铜镍多金属矿矿床主要岩性剖面的天然放射性、密度、电性及磁性特征,分析总结含矿地层的地球物理测井曲线响应特征。分析结果表明:高视极化率、高磁化率、高视密度及低视电阻率异常是区内主要成矿地层最典型的地球物理测井响应特征,且异常由辉长岩的黄铁矿化、磁铁矿化引起;矿化度为取心率不足的钻孔及非取心钻孔中定性、定量划分含矿地层提供充分的理论依据,初步建立了深部资源探测地球物理测井技术方法体系。
Based on the comprehensive geophysical logging technology of multiple parameters,the comprehensive processing and interpretation of non-ferrous metal geological survey logging data are carried out under the constraints of drilling records and laboratory test data.The natural radioactivity,density,elec⁃trical property and magnetic characteristics of the main lithological sections of the Cu-Ni polymetallic depos⁃it are revealed,and the response characteristics of the geophysical logging curve of the ore-bearing strata are analyzed and summarized.The results show that high apparent polarizability,high magnetic susceptibili⁃ty,high apparent density and low apparent resistivity are the most typical geophysical logging response char⁃acteristics of the main ore-forming strata in the area,and the anomalies are caused by pyritization and mag⁃netization of gabbro.Salinity provides sufficient theoretical basis for qualitative and quantitative classifica⁃tion of ore-bearing strata in boreholes and non-coring boreholes with insufficient heart rate,and preliminar⁃ily establishes a geophysical logging technology system for deep resource exploration.
作者
陈娜
王亚辉
米慧慧
张愿飞
李普站
CHEN Na;WANG Yahui;MI Huihui;ZHANG Yuanfei;LI Puzhan(Shaanxi Geology and Mining Geophysical and Geochemical Prospecting Team Co.,Ltd.)
出处
《现代矿业》
CAS
2024年第3期23-26,32,共5页
Modern Mining
关键词
地球物理测井
地质特征
铜镍多金属矿区
矿产资源勘查
geophysical logging
geological feature
copper-nickel polymetallic mining area
mineral resource exploration
