Volume 4, No. 1, March 2018

General Information

  • ISSN: 2395-647X (Online)
  • Abbreviated Title:  Int. J. Geol. Earth Sci.
  • Editor-in-Chief: ​Prof. Marina Fernandez de la Cruz, Department of Petrology and Geochemistry, Faculty of Geological Sciences, Complutense University of Madrid, Spain
  • Associate Editor: Sujitha R. Reddy, Savitha Darsha
  • Executive Editor: Ms. Yoyo Y. Zhou
  • DOI: 10.18178/ijges
  • Abstracting/Indexing: GeoRef (Elsevier), Crossref, Google Scholar, Genamics, Eurasian Scientific Journal Index (ESJI), etc.
  • E-mail questions to IJGES Editorial Office.

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International Journal of Geology and Earth Sciences
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Geological, Geochemical and Geoelectrical Prospecting for Ore Mineral Resources in Garatu, North Central Nigeria

Christopher Imoukhai Unuevho1, Flourence Ukamaka Oragba1, Bello Saidu Umar1, Roseline Boluwatife Oduleke1, Saidu Saliu2, and Emmanuel Emeka Udensi3
1.Department of Geology, Federal University of Technology, Minna
2.Department of Geography and Remote Sensing, Federal University of Technology, Minna
3.Department of Physics, Federal University of Technology, Minna

Abstract—Gindira Mine is located in Garatu town, within North Central Nigerian basement complex. Profit from the mine is now waning, and sustaining mining activity requires defining new mine prospects in the town. The new prospects were defined by interpreting Global Digital Elevation Model (GDEM), elemental composition data of foliated rocks acquired using Energy Dispersive Fluorimeter (EDXRF) equipment, Electrical Resistivity (ER), Spontaneous Potential (SP) and Induced Polarisation (IP) sounding data. Dextrally faulted lineaments observed on GDEM are schist and amphibolite with granite and granodiorite intrusions. Elemental composition analysis revealed concentration of gold, nickel, zinc and cobalt are above 400 ppm between longitudes E6.400° to E6.410° and latitudes N9.468° to N9.471°. Copper coexists with gold in concentration above 300 ppm in the southeastern part. The ore minerals are disseminated within rock outcrops. Their subsurface occurrence is indicated by coincidence of 18 to 32 ms IP values with 20 to 30 mv SP values within low ER interval. Massive ore minerals are probably indicated by -90 mv SP values associated with 19.65 m ER within 7 m half current electrode spacing at E6.397° and latitude N9.470° location. Generated new mining prospects are between (1) longitudes E6.400° to E6.410° and latitudes N9.460° to N9.477° and (2) longitudes E6.400° to E6.415° and latitudes N9.480° to N9.495°.

Index Terms—New mine prospects, Ore minerals, Elemental composition

Cite:Christopher Imoukhai Unuevho, Flourence Ukamaka Oragba, Bello Saidu Umar, Roseline Boluwatife Oduleke, Saidu Saliu, and Emmanuel Emeka Udensi, "Geological, Geochemical and Geoelectrical Prospecting for Ore Mineral Resources in Garatu, North Central Nigeria," International Journal of Geology and Earth Science, Vol. 4, No. 1, pp. 30-44, March 2018.