1D AEMIP inversion using MPA reparameterization for HTEM survey at Lamego Gold Mine, Quadrilátero Ferrífero, MG, Brazil

M. A. Couto, G. Fiandaca, E. Auken, A. V. Christiansen, J. L. Porsani

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingspeer-review

Abstract

This paper presents the result of the Airborne Electromagnetic Induced Polarization (AEMIP) 1D inversion using the Maximum Phase Angle (MPA) Cole-Cole model reparameterization for a Helicopter Time Domain (HTEM) survey in Quadrilátero Ferrífero area, MG, Brazil. The inversion was conducted for a set of four soundings points over the mineralized structure of Lamego Gold Mine. The results demonstrate good agreement with the drill-hole lithological description data and indicates two polarizable layers: one thin layer associated with the Au-mineralized banded iron formation (BIF) and the other one associated with a thick graphite schist bellow the Au-mineralization. Additionally, the AEMIP inversion results might suggest improvements in the underground resistivity model, which could not be achieved if the non-complex resistivity model is considered.

Original languageEnglish
Title of host publication2nd Conference on Geophysics for Mineral Exploration and Mining
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822658
DOIs
Publication statusPublished - 2018
Event2nd Conference on Geophysics for Mineral Exploration and Mining - Porto, Portugal
Duration: 9 Sep 201813 Sep 2018

Publication series

Name2nd Conference on Geophysics for Mineral Exploration and Mining

Conference

Conference2nd Conference on Geophysics for Mineral Exploration and Mining
Country/TerritoryPortugal
CityPorto
Period9/09/1813/09/18

Keywords

  • AEMIP
  • Brazil
  • HTEM
  • MPA reparameterization
  • Quadrilátero Ferrífero

Programme Area

  • Programme Area 2: Water Resources

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