b'The origin of the Bangui magnetic anomalyFeatureFigure 5.(a) The estimated Moho depths superimposed by the locations of the seismic Moho depths; (b) the elastic thickness map (Njiteu etal. 2021b)values found at the edges of the Chinese and American cratons.approach also highlighted the presence of remanent cratonic The analyses carried out allowed the association of thesestructures in the Sahara meta-craton, and thus confirmed the low values of crustal thicknesses, as well as elastic thicknessexistence of three cratonic cores (Chad Craton, Murzuq Craton values, to the regional geodynamic phenomena (volcanism,and Al Kufrah Craton, Fig.5b). These results were discussed earthquakes, thermo-tectonic events) that led to a partial loss ofbased on very recent previous studies (Sobh etal. 2020; Sobh the cratonic structures. 2019; Ngalamo etal. 2018) by integrating seismic results (Tokam Thus, we show that the evolution of the crustal architectureetal. 2010; Gallacher etal. 2012) and by comparison with global as observed today was strongly controlled by major crustalcrustal models CRUST1.0 and GEMMA.remobilisations. The partial destruction of the cratonicIn the quest to understand the origin of the Bangui magnetic structures was best imaged by non-linear gravity inversionanomaly and the location and nature of the causative rocks, of high resolution satellite data (GOCO6s). This additionalfurther results derived from the processing and interpretation Figure 6.(a) The estimated Curie depths; (b) the estimated thermal gradients in Central Africa and beneath the BMAFEBRUARY 2022 PREVIEW 48'