A low-frequency resistivity survey using ERA electrical profiling (middle gradient array) has been completed over a nickel prospect in Porcupine District, Ontario, Canada. The results of this EM-Resistivity were used to calculate the apparent resistivity and were further inverted using UBC-GIF 3D Frequency Domain Inversion Software, EH3DInv. The results of the inversion have shown the anomalous distribution of electrical properties, consistent with a known geological contact between metavolcanic rocks and an ultramafic pluton. The conductive zone has been interpreted to be located in the interval between 70 and 120 meters. The interpreted conductive zone was further subjected for a drilling program. The drilling program was carried out in March–April 2011 and revealed a 21m thick zone with disseminated to massive mineralized intervals starting at 82 meters, which is consistent with the results of 3D inversion of ERA data.
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Using ERA Low Frequency E-field Profiling And UBC 3D Frequency-domain Inversion to Delineate And Discover a Mineralized Zone In Porcupine District, Ontario, Canada.
Vlad Kaminski;
Vlad Kaminski
University of British Columbia
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Douglas Oldenburg
Douglas Oldenburg
University of British Columbia
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Paper presented at the 2011 SEG Annual Meeting, San Antonio, Texas, September 2011.
Paper Number:
SEG-2011-1262
Published:
September 18 2011
Citation
Kaminski, Vlad, Prikhodko, Alexander, and Douglas Oldenburg. "Using ERA Low Frequency E-field Profiling And UBC 3D Frequency-domain Inversion to Delineate And Discover a Mineralized Zone In Porcupine District, Ontario, Canada.." Paper presented at the 2011 SEG Annual Meeting, San Antonio, Texas, September 2011.
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