Mosaad Ali, Shulin Sun, Wei Qian, Abdou Dodo Bohari, Dusabemariya Claire, Yan Zhang. Geoelectrical tomography data processing and interpretation for pb-zn-ag mineral exploration in Nash creek, Canada

Details

Parent Category: Geo-Technical Mechanics, 2020

Category: Geo-Technical Mechanics, 2020, № 154

Geoteh. meh. 2020, 154, 3-18

https://doi.org/10.1051/e3sconf/202016800003

 

GEOELECTRICAL TOMOGRAPHY DATA PROCESSING AND INTERPRETATION FOR PB-ZN-AG MINERAL EXPLORATION IN NASH CREEK, CANADA

^1,2Mosaad Ali, ¹Shulin Sun, ¹Wei Qian, ¹Abdou Dodo Bohari, ¹Dusabemariya Claire, ¹Yan Zhang

¹School of Earth Science and Engineering at Hohai University, ²Mining and Metallurgical Engineering Department at Assiut University

Language: English

Abstract. The geoelectrical tomography survey was carried out to explore and characterize a (Zn-Pb-Ag) sulphide deposit in Nash Creek (NC), New Brunswick province, Canada. The exploration strategy has been conducted by the 2-D survey for a well-cut grid consisting of twelve surface lines (profiles) each around 2 km long, and 300 m apart, for the total area around 9.5 km². The datasets (resistivity and induced polarization) were acquired using the Iris El-Rec Pro system with pole-dipole electrodes array spaced 50 m apart, and ten levels of data datum. The results of the 2-D inversion revealed that the underground resistivity and chargeability values in the exploration area have a range of (5 to 1300 Ωm) and (0-9.5 mV/V), respectively. The sulphide mineralization zones in the exploration area are characterized by moderate resistivity values (150-300 Ωm) and moderate to low chargeability values (>5.5 mV/V), with a depth of around (90-140 m) from the surface. The 3-D visualization model clearly reveals that three main zones of sulphide mineralization are present in the exploration area. The predicted geological reserve of the sulphide ore in the exploration area was calculated. The inverted models revealed a good agreement with the existing geological features in the exploration area.

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