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Analysis of the potential application of geophysical survey (induced polarization and DC resistivity) to a long-term mine planning in a sulfide deposit
Arabian Journal of Geosciences ( IF 1.827 ) Pub Date : 2020-10-12 , DOI: 10.1007/s12517-020-06096-x
César Augusto Moreira , Matheus Felipe Stanfoca Casagrande , Karolliny Borssatto

Medium- and long-term mine planning depends on a large series of probes to determine the continuity and content of mineralized zones and the development direction of the exploration. In addition to being logistically complex and onerous, this process is financially wasteful. In this way, Geophysics is an alternative and indirect investigative tool traditionally used in various phases of mineral exploration. This project proposes to assess the possible continuity of a gold and sulfide quartz lode deposit related to an adjacent abandoned open-pit mine by applying DC resistivity and induced polarization methods through electrical tomography. The most promising results indicated a zone of high chargeability (> 20 mV/V) with high potential of mineralization but not coincident to the high resistivity zones. This specific zone was characterized by a vertical tubular stockwork related to vertical fracture joints generated by the stress inversion of the 3rd (NE) and 4th (NW) phases of regional deformation. The integrated analysis resulted in a potential target for future exploration, in addition to the optimization of application of financial resources in probing procedures.



中文翻译:

分析地球物理勘测(感应极化和直流电阻率)在硫化物矿床的长期矿山规划中的潜在应用

中长期矿山规划取决于一系列探查,以确定矿化带的连续性和含量以及勘探的发展方向。除了后勤复杂和繁重之外,该过程在经济上也是浪费的。这样,地球物理学是传统上用于矿产勘探各个阶段的替代性和间接调查工具。该项目建议通过应用直流电阻率和通过电层析成像法感应极化的方法,评估与相邻的废弃露天矿有关的金和硫化物石英矿床的可能连续性。最有希望的结果表明,一个带电率高的区域(> 20 mV / V)具有较高的矿化潜力,但与高电阻率区域并不重合。该特定区域的特征是垂直管状管状物,与区域变形的第三(NE)和第四(NW)相的应力反演所产生的垂直断裂缝有关。除了优化探测程序中财务资源的应用之外,综合分析还为将来的勘探提供了潜在的目标。

更新日期:2020-10-12
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