Figures index

From

A Review of Granitoid-Related Gold Mineralization Styles and Characteristics of the Neoproterozoic Eastern Gold Districts, Cameroon and the Role of Fluid Inclusion Studies in Elucidating the Genesis

R.B. Ngatcha, O.A. Okunlola, C.E. Suh, E.R. Eben Mboe, C. Fuanya

Journal of Geosciences and Geomatics. 2018, 6(3), 138-146 doi:10.12691/jgg-6-3-4
  • Figure 1. (a) Geology of West-central Africa and northern Brazil in a Gondwana (pre-drift) reconstruction (modified from [25,42]. Dashed line boundary of Cameroon. Thick line, boundary of the two continents: (1) Phanerozoic cover; (2) Neoproterozoic formations; (3) Regions of Brasiliano/Pan-African deformation in which Paleoproterozoic basement is absent or only present as small isolated blocks; (4) Regions of Brasiliano/Pan-African deformation with large amounts of reworked Paleoproterozoic basement; (5) cratons; (6) faults. (b) Simplified geological map of Cameroon showing the main lithostratigraphic domains of the Neoproterozoic Pan-African orogenic belt, adapted from Soba [43] and Toteu et al. [41]. AYD, Adamawa Yadé Domain; KCF, Kribi-Campo fault; AF, Adamaoua fault; SF, Sanaga fault; TBF, Tcholliré-Banyo fault; CCSZ, Central Cameroon Shear Zone. Dashed line represents the assumed geophysical limit of the Congo craton after Toteu et al. [31]. (c) Geologic map of Batouri east, sheet No. NB.33 S.W. E.31 (modify from [9])
  • Figure 2. Geological sketch map of the Lom unit modify from Ngako et al. [16], Toteu et al. [17] and Fon et al. [13]. (d) It is characterized by a predominant NE-SW trending shear zone
  • Figure 3. Model of the post-collisional stage of the Central African Fold Belt and the Congo Craton. The upwelling asthenosphere supplied excessive heat to the lower crust, which melted crustal rocks to generate high-K calc-alkaline granitic magmas. After Asaah et al. [4]
  • Figure 4. General plan model of intrusion-related gold systems from the Tintina Gold Province. Note the wide range of mineralization styles and geochemical variations that vary predictably outward from a central pluton [64]