2006/03/01 by Constant Noutchogwe Tatchum, Charles T. Tabod, Eliézer Manguelle-Dicoum · 31 citations
Earth and Planetary Sciences · #Archaeology #Basalt #Basement #Crust #Fault (geology) #Geochemistry #Geography #Geological and Geophysical Studies #Geology #Geophysical and Geoelectrical Methods #Geophysics and Gravity Measurements #Gneiss #Gravity anomaly #Igneous rock #Intrusion #Metamorphic rock #Paleontology #Petrology #Plateau (mathematics) #Residual #Seismology #Shear (geology) #Shear zone #Tectonics #Volcano
paper · pdf · doi:10.1088/1742-2132/3/1/009
published in Journal of Geophysics and Engineering 3(1), 82-89 (IOP Publishing)
openalex publication_date 2006/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/23
In this work, a regional–residual separation of the gravity anomalies on the southern part of the Adamawa plateau is undertaken. Analysis of the maps obtained show a N70°E oriented zone which coincides with the main direction of the fractures affecting the basement in the region. Three profiles were drawn on the residual anomaly map, and are interpreted using a gravity modelling program. They show an uplift of dense rocks in the granite–gneiss substratum, found at an average depth of about 8 km. This dense material, which runs parallel to the Foumban Shear Zone (FSZ), is interpreted as an igneous intrusion probably of basaltic composition, which may be associated with the Cameroon Volcanic Line (CVL). The ascent of the body may have been facilitated by the reactivation of the FSZ.