Structural Implication of Pseudogravity Transformation of Aeromagnetic Data over the Riruwai Complex

Author(s): Adeyinka Olasehinde, Edafetano C. Ashano

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Abstract: Pseudogravity transformation of the aeromagnetic data over the Riruwai Complex reveals three geological vent structures: southern, north-western and northern vents in the complex which incredibly compares to the geological information. They consist of mainly agglomerates, breccias, tuffs and rhyolites. These perhaps represent intraplate tectonic and magmatic phenomena linked to deep mantle plumes and asthenospheric upwellings. Bottom depth of about 5.4km is estimated using statistical space domain variogram, the dimensions of the vents are also reported.