Figure 6. Map of residual gravity anomalies produced by subtracting a third-order polynomial surface from the Bouguer anomaly

From

Using EGM2008 Gravity Data for Mapping and Detecting Structural Subsurface Anomalies in the Mayo-Kani Division (Cameroon)

Jean Jacques Nguimbous-Kouoh, Simon Ngos III, Eliezer Manguelle-Dicoum

Journal of Geosciences and Geomatics. 2019, 7(1), 42-53 doi:10.12691/jgg-7-1-5