Articles | Volume 11, issue 2
Research article
17 Mar 2020
Research article |  | 17 Mar 2020

New regional stratigraphic insights from a 3D geological model of the Nasia sub-basin, Ghana, developed for hydrogeological purposes and based on reprocessed B-field data originally collected for mineral exploration

Elikplim Abla Dzikunoo, Giulio Vignoli, Flemming Jørgensen, Sandow Mark Yidana, and Bruce Banoeng-Yakubo

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Cited articles

Affaton, P.: Le Bassin des Volta (Afrique de l'Ouest): une marge passive, d'âge Protérozoïque supérieur, tectonisée au Panafricain (600±50 Ma). Edition del'ORSTOM, Collection Etudes et Thèses, Paris, 2, 499, 1990. 
Affaton, P., Sougy, J., and Trompette, R.: The tectono-stratigraphic relationships between the Upper Precambrian and Lower Paleozoic Volta Basin and the panAfrican Dahomeyide Orogenic Belt (West Africa), Am. J. Sci., 280, 224–248, 1980. 
Affaton, P., Rahaman, M. A., Trompette, R., and Sougy, J.: The Dahomeyide Orog: tectonothermal evolution and relationships with the Volta Basin, in: The West African Orogens and Circum-Atlantic Correlatives, edited by: Dallmeyer, R. D. and Lecorche, J. P., Springer, New-York, 107–122, 1991. 
Anani, C. Y., Mahamuda, A., Kwayisi, D., and Asiedu, D. K.: Provenance of sandstones from the Neoproterozoic Bombouaka Group of the Volta Basin, northeasten Ghana, Arab. J. Geosci., 10, 465,, 2017. 
Auken, E., Christiansen, A. V., Westergaard, J. H., Kirkegaard, C., Foged, N., and Viezzoli, A.: An integrated processing scheme for high-resolution airborne electromagnetic surveys, the SkyTEM system, Explor. Geophys., 40, 184–192, 2009. 
Short summary
Time-domain electromagnetic (TEM) geophysics data originally collected for mining purposes were reprocessed and inverted. The new inversions were used to construct a 3D model of the subsurface geology to facilitate hydrogeological investigations within a DANIDA-funded project. Improved resolutions from the TEM enabled the identification of possible paleovalleys of glacial origin, suggesting the need for a reevaluation of the current lithostratigraphy of the Voltaian sedimentary basin.