**Table 10.**

*Data information for control-point of humble salt dome (modified after, Okocha, 2017).*

### **Figure 14.**

*The hypothetical model 1 for the humble salt dome, with heterogeneous formations' densities distributions.*

### **Figure 15.**

*The hypothetical model 2 for the humble salt dome, with homogeneous formations' densities distributions.*


### **Table 11.**

*Humble salt dome and theoretical calculation parameters for model (1).*

A digitizing profile along line AA' was carried out for Bouguer gravity anomaly map for Humble Salt Dome (Figure 14b), with equal intervals 0.35253 km., where the profile AA' is about 30.5 km in length. Then the digitized values are saved as Excel's file (humble\_aa\_slab.xlsx), of two coordinates (x, gB), where the file was later used for calculating, tracing the formations' thicknesses, and depth's basement
