Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin

Preliminary gravity results for the Mamfe Basin in the border region of northwestern Cameroon with southeastern Nigeria are reported. No geophysical studies were available for this important area, which is genetically related to oil and gas deposits in the Benue Trough. Regional and residual gravity...

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Main Authors: Q. Yene Atangana, J. O. Campos-Enriquez, E. Manguelle-Dicoum, T. Ndougsa-Mbarga
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México, Instituto de Geofísica 2007-06-01
Series:Geofísica Internacional
Subjects:
Online Access:http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/2007/02/Ndougsa.pdf
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author Q. Yene Atangana
J. O. Campos-Enriquez
E. Manguelle-Dicoum
T. Ndougsa-Mbarga
author_facet Q. Yene Atangana
J. O. Campos-Enriquez
E. Manguelle-Dicoum
T. Ndougsa-Mbarga
author_sort Q. Yene Atangana
collection DOAJ
description Preliminary gravity results for the Mamfe Basin in the border region of northwestern Cameroon with southeastern Nigeria are reported. No geophysical studies were available for this important area, which is genetically related to oil and gas deposits in the Benue Trough. Regional and residual gravity components were obtained by least-square fitting of a third-degree polynomial surface to the Bouguer anomaly. The residual anomalies feature two NE-SW gravity lows attributed to sedimentary infill about the localities of Ekok and Agbokem, and about Mukonyong, Mamfe and Bachuo Akagbe. The gravity highs to the north and south are associated with outcrops of the basement complex. This structure corresponds to two major basins separated by a structural high. The deeper western sub-basin comprises two sub-basins separated by a minor structural high possibly related to the crystalline basement. These sub-basins tend to be shallower in the eastern direction possibly indicating the direction of migration of hydrocarbons. More detailed gravity and seismic studies may lead to discoveries of structural or stratigraphic traps. We conclude that the area is a promising prospect in terms of oil and gas prospecting.
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spelling doaj.art-7d6ad8899f05488f8d72a109c04cb6272023-08-02T02:27:56ZengUniversidad Nacional Autónoma de México, Instituto de GeofísicaGeofísica Internacional0016-71692007-06-01462129139Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basinQ. Yene AtanganaJ. O. Campos-EnriquezE. Manguelle-DicoumT. Ndougsa-MbargaPreliminary gravity results for the Mamfe Basin in the border region of northwestern Cameroon with southeastern Nigeria are reported. No geophysical studies were available for this important area, which is genetically related to oil and gas deposits in the Benue Trough. Regional and residual gravity components were obtained by least-square fitting of a third-degree polynomial surface to the Bouguer anomaly. The residual anomalies feature two NE-SW gravity lows attributed to sedimentary infill about the localities of Ekok and Agbokem, and about Mukonyong, Mamfe and Bachuo Akagbe. The gravity highs to the north and south are associated with outcrops of the basement complex. This structure corresponds to two major basins separated by a structural high. The deeper western sub-basin comprises two sub-basins separated by a minor structural high possibly related to the crystalline basement. These sub-basins tend to be shallower in the eastern direction possibly indicating the direction of migration of hydrocarbons. More detailed gravity and seismic studies may lead to discoveries of structural or stratigraphic traps. We conclude that the area is a promising prospect in terms of oil and gas prospecting.http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/2007/02/Ndougsa.pdfGravity anomalyresidual and regional mapssedimentary infillbasin structurehydrocarbon migration
spellingShingle Q. Yene Atangana
J. O. Campos-Enriquez
E. Manguelle-Dicoum
T. Ndougsa-Mbarga
Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
Geofísica Internacional
Gravity anomaly
residual and regional maps
sedimentary infill
basin structure
hydrocarbon migration
title Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
title_full Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
title_fullStr Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
title_full_unstemmed Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
title_short Gravity anomalies, sub-surface structure and oil and gas migration in the Mamfe, Cameroon-Nigeria, sedimentary basin
title_sort gravity anomalies sub surface structure and oil and gas migration in the mamfe cameroon nigeria sedimentary basin
topic Gravity anomaly
residual and regional maps
sedimentary infill
basin structure
hydrocarbon migration
url http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/2007/02/Ndougsa.pdf
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