Validation of gravity data from the geopotential field model for subsurface investigation of the Cameroon Volcanic Line (Western Africa)

Margat, Jean; Essi, Jean Marcel Abaté; Nouck, Philippe Njandjock; Sanda, Oumarou; Manguelle-Dicoum, Eliézer

doi:10.1186/s40623-018-0812-x

Cited by 12 publications

(7 citation statements)

References 48 publications

(80 reference statements)

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“…3 Bouguer anomaly map of the study area interpolated using data from Fig. 2 the particularity in studying gravity signatures of subsurface geological features (Marcel et al 2018).…”

Section: Methodsmentioning

confidence: 99%

“…where (x 0 , y 0 , z 0 ) the coordinates of the gravity or magnetic source, P is the field intensity measured at position (x, y, z), B the regional potential field, N is the structural index also refers to the geometry of the source and is the measure of the fall-off rate of the gravity field. (Thompson 1982;Reid et al 1990;Ndougsa-Mbarga et al 2011;Marcel et al 2018). Another important parameter that follows when seeking for the appropriate solutions is the choice of window size; Marson and Klingele (1993) noted that the appropriate choice of the window size depends on the wavelength of the anomaly under investigation and the grid pitch.…”

Section: Euler Deconvolutionmentioning

confidence: 99%

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Mapping of major tectonic lineaments across Cameroon using potential field data

Fantah

Mezoue

Mouzong

et al. 2022

Earth Planets Space

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The cartography of lineaments across a territory can be optimized using geophysical potential field data. In this study, land gravity and EMAG2 (Earth Magnetic Anomaly Grid) data were simultaneously used to identify and characterize the major lineaments that spread across Cameroon. The data were filtered using a multi-scale approach including horizontal and vertical gradient analyses. The Euler Deconvolution method was later applied to the filtered data to estimate the extension and depth of the identified lineaments. Results show that the main lineaments across Cameroon are laterally extended with a dominant N45°E orientation. Some of these lineaments correlated well with the geographical location of some known major tectonic structures found across the country. The depth of these lineaments varies between 1 and 35 km. Some of the identified faults are still active as their location correlated with the location of some recent earthquakes that occurred in Cameroon. This work, therefore, highlights some hidden tectonic features which knowledge generally precedes exploration for subsurface resources. Graphical Abstract

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“…3 Bouguer anomaly map of the study area interpolated using data from Fig. 2 the particularity in studying gravity signatures of subsurface geological features (Marcel et al 2018).…”

Section: Methodsmentioning

confidence: 99%

Section: Euler Deconvolutionmentioning

confidence: 99%

Mapping of major tectonic lineaments across Cameroon using potential field data

Fantah

Mezoue

Mouzong

et al. 2022

Earth Planets Space

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“…From a geological point of view, the crust in Cameroon is characterized by two main geological structures, the Pan-African-Mobile Belt in the north and the Congo Craton in the south, with several main structural features such as the Sanaga Fault, the Cameroon volcanic line, and the Adamawa Plateau [29][30][31][32][33][34][35][36][37][38]. These features have been partially modeled using various geophysical methods such as gravity, magnetic, 4 Geofluids and seismic data [29][30][31][32][33][34][35][36][37][38]. From the review of [29][30][31][32][33][34][35][36][37][38], it comes out that the geological structures and features of Cameroon have been shaped by tectonic activity over millions of years, and that those main features are the following:…”

Section: Global and Regional Trends In Geothermal Energymentioning

confidence: 99%

“…These features have been partially modeled using various geophysical methods such as gravity, magnetic, 4 Geofluids and seismic data [29][30][31][32][33][34][35][36][37][38]. From the review of [29][30][31][32][33][34][35][36][37][38], it comes out that the geological structures and features of Cameroon have been shaped by tectonic activity over millions of years, and that those main features are the following:…”

Section: Global and Regional Trends In Geothermal Energymentioning

confidence: 99%

Current Status, Future Prospects, and the Need for Geothermal Energy Exploration in Cameroon: Comprehensive Review

Mouzong,

Mfetoum,

Ngoh

et al. 2023

Geofluids

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Cameroon is a country in Central Africa that relies heavily on hydropower, fossil fuels, solar, and biomass for its energy needs. However, the unstable and intermittent nature of these energy sources makes them unreliable, and there is a pressing need for a more secure and sustainable energy supply. Geothermal energy, which is abundant in Cameroon due to its favorable geological characteristics, has not been fully explored as a potential energy source. This study is aimed at providing a comprehensive review of the current status and future prospects of geothermal energy in Cameroon, based on publications related to geothermal energy in Cameroon, geological, and geophysical studies. The objectives of this study are to analyze the existing literature on geothermal energy in Cameroon, to identify the challenges and opportunities associated with geothermal energy development, and to make recommendations for future research and policy decisions. The results indicate that geothermal energy in Cameroon is still in its infancy, with limited research and development in the field. However, the country has geothermal potential, particularly in the Adamawa and Cameroon volcanic line (CVL) areas. The review highlights the challenges and barriers to geothermal energy development in Cameroon, including limited financial resources, technical expertise, and regulatory frameworks. The findings of this study suggest that Cameroon has significant potential for geothermal energy development, and that further exploration and investment in this area could contribute significantly to a more secure and sustainable energy supply in the country.

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“…Unlike terrestrial gravity data, satellite gravity data are available in areas difficult to reach and could solve poor resolution and sparseness of terrestrial gravity data. Some researchers have validated this gravity database by comparing the results of their studies with those obtained from other sources of geophysical data [23][24][25][26]. These authors have suggested that gravity data derived from the EGM2008 model can fill the lack of terrestrial gravity data in some areas.…”

Section: Satellite Gravity Data (Egm2008)mentioning

confidence: 99%

Combination of Terrestrial and Satellite Gravity Data for the Characterization of the Southwestern Coastal Region of Cameroon: Appraisal for Hydrocarbon Exploration

Kamto

Lemotio

Tokam

et al. 2021

International Journal of Geophysics

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The southwestern coastal region of Cameroon is an area of interest because of its hydrocarbon potential (gas and oil). Terrestrial and satellite gravity data were combined and analyzed to provide a better precision in determining the structure of the study area. Firstly, the two gravity databases (in situ and satellite) have been coupled and validated using the least square collocation technique. Then, spectral analysis was applied to the combined Bouguer anomaly map to evaluate the thickness of sediments in some localities. We found that the sedimentary cover of the southwestern coastal region of Cameroon has a thickness that varies laterally from 1.68 ± 0.08 to 2.95 ± 0.15 km , especially in the western part. This result confirms that our target area is a potential site for hydrocarbon exploration. The horizontal gradient method coupled with the upward continuation at variable heights has been used to highlight several lineaments and their directions (N-S, E-W, SW-NE, and SSW-NNE). Lineaments trending in an N-S orientation are predominant. The Euler deconvolution method was also applied to the Bouguer anomaly map to determine the position, orientation, and depth of the different superficial faults of the study area. It appears that the majority of superficial faults have an N-S and SSW-NNE orientation. These directions are correlated with those previously highlighted by the maxima of horizontal gradient. The structural map could be used for a better identification of the direction of fluid flow within the subsurface or to update the geological map of our study area.

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Validation of gravity data from the geopotential field model for subsurface investigation of the Cameroon Volcanic Line (Western Africa)

Cited by 12 publications

References 48 publications

Mapping of major tectonic lineaments across Cameroon using potential field data

Mapping of major tectonic lineaments across Cameroon using potential field data

Current Status, Future Prospects, and the Need for Geothermal Energy Exploration in Cameroon: Comprehensive Review

Combination of Terrestrial and Satellite Gravity Data for the Characterization of the Southwestern Coastal Region of Cameroon: Appraisal for Hydrocarbon Exploration

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