Advertisement

Structural Setting of Western Mali Insights from Magnetic Data Analysis

  • Adama Youssouf KoneEmail author
  • Imen Hamdi Nasr
  • Wajdi Belkheria
  • Mohamed Hedi Inoubli
  • Adnen Amiri
  • Saïdou Ly
Chapter
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

Within the Western African Craton, the Kedougou-Kenieba Inlier lodges the Senegalo-Malian Shearing-Zone, with its secondary structures, control the gold mineralization. The magnetic method is of great interest in structures determination and characterization. Many techniques were applied to the airborne magnetic data (Field Residual, Reduction to Equator, Derivations, and Euler Deconvolution) in order to reveal magnetic structures related to mineralization. Lineaments of different directions (N–S, NE–SW, NW–SE and E–W) have been identified and coincided with the known faults and intermediate to basic magmatic dykes. These lineaments have low magnetic intensity signatures, generally negative. A large NE–SW overlapping corridor contains the majority of the Artisanal Mining Sites testifying the controllability of gold deposits by the NE–SW structures. Euler solution led to a brief estimate of the depth of different structures. This led to propose additional targets so as to help exploration activities in Western Mali.

Keywords

Aeromagnetic data Geophysics West Africa Craton (WAC) Kedougou-Kenieba Inlier (KKI) Western Mali 

References

  1. 1.
    Rocci, G.: Essai d’interprétation des mesures géochronologiques de la structure de l’Ouest africain. Science de la Terre 10(3–4), 461 (1966)Google Scholar
  2. 2.
    Allibone, A., Teasdale, J., Cameron, G., Etheridge, M., Uttley, P., Soboh, A., Appiah-Kubi, J., Adanu, A., Arthur, R., Mamphey, J., Odoom, B., Zuta, J., Tsikata, A., Pataye, F., Famiyeh, S.: Timing and structural controls on gold mineralization at the Bogoso gold mine, Ghana, West Africa. Econ. Geol. 97, 949–969 (2002)CrossRefGoogle Scholar
  3. 3.
    Feybesse, J.M., Sidibé, Y.T., Konaté, C.M., Lacomme, A., Zammit, C., Guerrot, C., BRGM, CPG, DNGM.: Notice explicative de la Carte géologique de la République du Mali à 1/200 000, Feuille n° ND-28-XII/ND-29-VII, Dalafi—Kossanto Bamako (MALI), 2ième édition, 34 pp. Ministère des Mines, de l’Énergie et de l’Eau (2006)Google Scholar
  4. 4.
    Lambert-Smith, J.S., Lawrence, D.M., Vargas, C.A., Boyce, A.J., Trelaor, P.J., Herbert, S.: The Gounkoto Au deposit, West Africa: constraints on ore genesis and volatile sources from petrological, fluid inclusion and stable isotope data. Ore Geol. Rev. 78, 606–622 (2015)CrossRefGoogle Scholar
  5. 5.
    Masurel, Q., Miller, J., Hein, A.A.K., Hanssen, E., Thébaud, N., Ulrich, S., Kaisin, J., Tessougue, S.: The Yatela gold deposit in Mali, West Africa: the final product of a long-lived history of hydrothermal alteration and weathering. J. Afr. Earth Sci. 113, 73–87 (2016)CrossRefGoogle Scholar
  6. 6.
    Dabo, M., Aïfa, T.: Late Eburnean deformation in the Kolia-Boboti sedimentary basin, Kédougou-Kéniéba Inlier, Senegal. J. Afr. Earth Sci. 60, 106–116 (2011)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Adama Youssouf Kone
    • 1
    • 2
    • 3
    Email author
  • Imen Hamdi Nasr
    • 1
    • 2
  • Wajdi Belkheria
    • 2
  • Mohamed Hedi Inoubli
    • 2
  • Adnen Amiri
    • 2
  • Saïdou Ly
    • 4
  1. 1.Faculty of Sciences of Bizerte (FSB)University of CarthageBizerteTunisia
  2. 2.Research Unity of Applied Geophysical at Ore and Material (UR-GAMM)TunisTunisia
  3. 3.Faculty of Sciences and Technics (FST)University of Sciences, Technics and Technological of Bamako (USTTB)BamakoMali
  4. 4.Ecole Nationale d’Ingénieurs Abdaramane Baba Toure (ENI-ABT)BamakoMali

Personalised recommendations