青海虎头崖铅锌多金属矿床物化探综合找矿方法研究
Study on comprehensive geophysical and geochemical prospecting methodology for lead-zinc polymetallic deposits in Hutouya,Qinghai Province
宁霞 1柳建新 1郭振威1
作者信息
- 1. 中南大学 地球科学与信息物理学院,湖南 长沙 410083;中南大学 有色资源与地质灾害探查湖南省重点实验室,湖南 长沙 410083
- 折叠
摘要
虎头崖矿床位于青海省祁漫塔格地区东部,区内矿产丰富、矿种多样、组合复杂,找矿潜力巨大.本研究针对该区域高寒山区的特殊地质条件,聚焦解决隐伏有色金属矿产勘探难题,以期高效、准确地识别并定位高寒环境下隐伏矿体的空间分布.设计并实施了基于物化探综合找矿方法的试验研究,采用双频激电扫面技术,结合高频大地电磁测深方法,以获取深部地质结构的电性特征,有效区分矿化与非矿化异常.同时,结合原生晕和次生晕地球化学找矿手段,通过多元素地球化学异常分析,进一步预测矿化作用的空间分布.上述综合探测技术的应用,在青海虎头崖地区取得了较好的试验效果,圈定了潜在矿化带,探索了适用于高寒山区的隐伏有色金属矿产的找矿技术方法,该工作方法可为周边勘查区及高寒山区隐伏地层找矿工作提供借鉴.
Abstract
The Hutouya deposit is located in the eastern part of the Qimantage region,Qinghai Province,which is rich in diverse mineral resources with complex combinations,harboring tremendous potential for prospect-ing.This study,tailored to the unique geological conditions of alpine regions in this area,focuses on resolving the challenges associated with the exploration of concealed non-ferrous metal deposits,aiming to efficiently and accurately identify and locate the spatial distribution of concealed ore bodies in alpine environments.A pilot study based on a comprehensive geophysical and geochemical prospecting methodology was designed and implemented.The study utilized dual-frequency induced polarization(IP)scanning technology,coupled with high-frequency magnetotelluric sounding methods,to acquire the electrical characteristics of deep geological structures,effectively distinguishing mineralization anomalies from non-mineralization anomalies.Additionally,geochemical prospecting techniques involving primary and secondary halos were incorporated,with multi-element geochemical anomaly analysis further predicting the spatial distribution of mineralization.The application of these comprehensive exploration techniques achieved promising results in the Hutouya area of Qinghai,delineating potential mineraliza-tion zones and exploring effective prospecting techniques tailored for concealed non-ferrous metal deposits in alpine regions.The methodologies employed in this study can serve as a valuable reference for prospecting in surrounding exploration areas and concealed strata in alpine regions.
关键词
铅锌矿床/双频激电扫面/高频大地电磁测深/原生晕法/次生晕法/虎头崖矿区Key words
lead-zinc deposit/dual-frequency induced polarization scanning/high-frequency magnetotelluric sounding/exploration by primary halo/exploration by secondary halo/Hutouya mining area引用本文复制引用
出版年
2024
NETL
NSTL
万方数据