Electrical Resistivity and Induced Polarization Data Correlation with Conductivity for Iron Ore Exploration

 

Andy A. Bery

Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 Penang
Corresponding author e-mail: andersonbery@yahoo.com.my

Rosli Saad

Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 Penang

Edy Tonnizam Mohamad

Faculty of Civil Engineering, Department of Geotechnics and Transportation, Universiti Teknologi Malaysia

Mark Jinmin

Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 Penang

I.N. Azwin

Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 Penang

Norsalkini Mohd Akip Tan

Faculty of Civil Engineering, Department of Geotechnics and Transportation, Universiti Teknologi Malaysia

M.M. Nordiana

Geophysics Section, School of Physics, Universiti Sains Malaysia, 11800 Penang

 

 ABSTRACT

A DC electrical resistivity and Time Domain Induced Polarization (TDIP) survey and on-site test were undertaken at an iron ore exploration area site in Pagoh, Malaysia for the purpose of imaging the possible area for mineral exploration. Two geophysical survey lines were conducted to identify and make possible to enhance the resolution of subsurface structure when compare to resistivity surveys alone. These two resistivity and induced polarization survey lines were carried out crossing the iron ore area giving a dense coverage over the area. The results show that it is possible to both resolve the geological structure using electrical resistivity and induce polarization method. In particular, it is possible to find the iron ore (hematite) which also correlates with the geostatistical analysis obtained from two data sets of survey lines and assisted with the on-site sampling test. The interpretation of the geophysical imaging finding was constrained by the on-site sampling test results. The results show that the on-site test and survey are successful in giving a valid and reliable infield data in producing iron ore for marketing purpose. The results from infield survey model and geostatistical analysis are discussed here supporting by the successful iron ore exploration of the study area which is for economic important in mining and industrial purposes.

Keywords: Electrical Resistivity; Induced Polarization; Geostatistical; Iron Ore Exploration

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