Clay Minerals Channels Identification in the Tindikala-Boutou Area (Eastern-Cameroon) along the Kadey River Using Direct Current (DC) Method

Gouet, Daniel Hervé; Meying, Arsène; Assembe, Stéphane Patrick; Ndougsa‐Mbarga, Théophile

doi:10.4236/gep.2015.36018

Cited by 5 publications

(8 citation statements)

References 11 publications

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“…The study area is in the southern region of Cameroon (Central Africa). It is situated in the northern hemisphere, between the meridians 13˚50' and 14˚20' of longitudes East and parallels 2˚10' and 2˚35' of latitudes North, with an average altitude of 850 m. In a geoelectrical study carried out to the north of this region, it is showed that the intense activities of gold washers encountered in the studied area do attest to the presence of clay mineral concentrations [5] [6]. To the east of this study area, recent geophysical study [7] has underlined the major network of lineaments identified in the area under study, which extend from SW to NE with an ENE-WSW major trend and can also be connected to those identified NE-SW by [8].…”

Section: Introductionmentioning

confidence: 99%

Aeromagnetic Data Modeling for Geological and Structural Mappings over the DJADOM-ETA Area, in the Southeastern Cameroon

Yandjimain¹,

Ndougsa‐Mbarga²,

Bi‐Alou³

et al. 2018

IJG

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The DJADOM-ETA area is in south-eastern of Cameroon, within the Congo Craton (CC) formations and composed of gneiss and amphibolite, migmatites and intrusive rocks. Few geophysical studies have been carried out over surrounding areas, but no investigation on the study area. The existence of aeromagnetic data covering the study area has motivated the application of a multiscale approach for tectonic features identification. The aim of this work is to interpret Aeromagnetic Data for Geological and Structural Mappings in the southeastern Cameroon. The GIS and GEOSOFT v8.4 softwares are used to treat data of Compagnie Minière du Cameroun getting in February 2012. The Tilt Angle method is used to delineate geological structures and to estimate the depth. The Euler's Deconvolution method is used to estimate the specific depth of structural contacts. The presence of bifurcations, accompanied by virgations, leading to the occurrence of several faults. Principal lineaments are determined with the main direction being ESE-WNW and E-W for the minor lineaments. The study highlights two major faults: ESE-WNW and ENE-WSW, where the former dominates, what could be called the geological accident of ETA. The Euler's Correlation and Tilt derivative contact map shows that most of the faults are vertical contacts. The geometrical description of this structure suggests an open synclinal transposed on vertical foliations: the major fault at the DJADOM axis is quasi-parallel to the Northern limit of the CC and parallel to the Sanaga Fault (SF) and the Central Cameroon Shear Zone (CCSZ). The features show a base strongly affected by tectonic which characterizes the transition between the zone from the CC and the belt from folds of the Pan-African. Also, the presence of the network characterizes the subsurface undulation in this study area: the intrusion of sandstone ochre quartz and schist of the Bek complex, the dolerite of the doleritic complex, and the silver micaschiste and ore quartzite in the base complex. On the TMI anomalies map, several places show high susceptibility contrasts, which is an indication of strong magnetization. Geological indicators point to inferred magnetite, dolerite and ochre schist quartzite which have a strong magnetization in this zone. The presence of weakly magnetized anomalies would be due to the migmatites of the base complex series. This study improved the knowledge of the subsurface structure of this area. It highlighted two major and minor faults. TMI anomalies map, in several places shows high susceptibility contrasts, which is an indication of strong magnetization.

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Section: Introductionmentioning

confidence: 99%

Aeromagnetic Data Modeling for Geological and Structural Mappings over the DJADOM-ETA Area, in the Southeastern Cameroon

Yandjimain¹,

Ndougsa‐Mbarga²,

Bi‐Alou³

et al. 2018

IJG

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“…International Journal of Geophysics International Journal of Geophysics If the injected current intensity is known and the potential drop measured, it is therefore possible to determine the apparent resistivity ρ a (Rho) of the ground following formulae below [22][23][24]:…”

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confidence: 99%

“…where ρ a is the apparent resistivity in Ohm.m; AM and AN are the distance between current electrode A and potential electrodes M and N, respectively, in meter (m); BM and BN are distance between current electrode B and potential electrodes M and N, respectively, in meter (m); V MN is the potential drop between potential electrodes M and N, in mV; I AB is the electric current injected between current electrodes A and B, in mA. For the Schlumberger symmetrical configuration (Figure 3), the apparent resistivity ρ a is given by Equation (2) as follows [22][23][24]:…”

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confidence: 99%

“…The resistivity of an earth's material depends essentially on the humidity and the clay proportion in a given volume of that material [22,23,25,26]. While clay and water fill in any vacuum in a rock, one can assume that the resistivity is a function of parameters such as fracturing, fractures and fissures clayey filling, porosity, and the clayey clogging of alluvium [22,23,25,26]. Thus, the resistivity of fractured granites and clayey clogging of alluvium are lower than fresh granite (basement) and the barren stratum in the study area.…”

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confidence: 99%

“…They depict proper hydrogeological and ore bodies occurring conditions for an efficient evaluation of the groundwater resources and mineral potential within the Batouri-Ngoura's basements [1,22,24,30,38,49]. The lithological dominant 1D models from the H-, QH-, KH-, HK-, HA-, HKH-, and KHK-type curves for Colomine, Tassongo, and Mama II (Figures 20 and [22][23][24][25][26][27], show that the crystalline basements in those localities have favorable conditions for mineral and groundwater prospecting. Thus, the 1D inversion of Schlumberger vertical electrical soundings using the method described by Koefoed [32] is the efficient background in the characterization of the typology of sounding curves and the location of favored areas of mineral and groundwater targets in the crystalline basements.…”

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confidence: 99%

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Typology of Sounding Curves and Lithological 1D Models of Mineral Prospecting and Groundwater Survey within Crystalline Basement Rocks in the East of Cameroon (Central Africa) Using Electrical Resistivity Method and Koefoed Computation Method

Gouet

Meying

Nkoungou

et al. 2020

International Journal of Geophysics

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Resistivity method using seventy-sixth (976) Schlumberger vertical electrical soundings along forty-one (41) profiles are conducted in the Batouri and Ngoura subdivisions, East region of Cameroon, to investigate the subsurface layering, mineral potential, and groundwater resource characteristics. Results of quantitative and qualitative interpretation of data using Koefoed computation method reveal two to five layers having geometrical and electrical characteristics of geological layer models: topsoil (0.5 m<ep<3 m; 600<ρ<3000 Ω.m), lateritic soils (3<ep<20 m; 1000<ρ<4000 Ω.m); conductive layer (5<ep<110 m; 100<ρ<1000 Ω.m); fractured/weathered granite (20<ep<60 m; 1000/5000<ρ<3000/9000 Ω.m); clayey layer (5<ep<20 m; 600/1500<ρ<2000/3500 (dry) Ω.m); and fresh granites (ρ>4000 Ω.m). From the qualitative interpretation of VES curves, the subsurface layering is depicted by nine (09) types of sounding curves (G, H, A, QH, KH, HK, HA, HKH, and KHK) characterizing the vertical changes and the typology of sounding curves in the East Cameroon crystalline basements. The lithology of the subsurface is dominated (more than 80%) by geoelectrical and lithological 1D models derived by the H, QH, KH, HK, HA, HKH, and KHK curve types. These models are characterized by the presence of conductive layers and fractured/weathered granites derived from tectonic activities of the region. Also, the resistivity method (VES) applied in this study bring information about variation of the resistivity with depth, geological structures, fractures, and rupture zones in the underground until 120 m depth. These abovementioned information reveal proper hydrogeological and mining conditions for an efficient evaluation of the mineral potential and groundwater resources.

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Remote sensing and DC electrical investigations in the Figuil area (North-Cameroon): structural and geological implications

Gouet

Kana

Guimbous

et al. 2022

NRIAG Journal of Astronomy and Geophysics

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Clay Minerals Channels Identification in the Tindikala-Boutou Area (Eastern-Cameroon) along the Kadey River Using Direct Current (DC) Method

Cited by 5 publications

References 11 publications

Aeromagnetic Data Modeling for Geological and Structural Mappings over the DJADOM-ETA Area, in the Southeastern Cameroon

Aeromagnetic Data Modeling for Geological and Structural Mappings over the DJADOM-ETA Area, in the Southeastern Cameroon

Typology of Sounding Curves and Lithological 1D Models of Mineral Prospecting and Groundwater Survey within Crystalline Basement Rocks in the East of Cameroon (Central Africa) Using Electrical Resistivity Method and Koefoed Computation Method

Remote sensing and DC electrical investigations in the Figuil area (North-Cameroon): structural and geological implications

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