| FORMATION | Density (kg/m3) | Final susceptibly model (SI) | |
| Former density model | Final density model | ||
| Keri Keri - Chad formation | 2100 and 2300 | 2000 - 2150 | 0 |
| Gombe formation |
| 2250 - 2300 |
|
| Fika (+volcanic bodies) | 2350 - (2800) | 2330 - (2850) | 0 - (0.02) |
| Gongila formation (+volcanic bodies) | 2350 - (2800) | 2400 - (2850) | 0 - (0.04) |
| Bima formation (+volcanic bodies) | 2550 - (2700) | 2490 - (2900) | 0 - (0.035) |
| Pre-Bima formation (+volcanic bodies) | 2550 - (2700) | 2580 - (2900) | 0 - (0.035) |
| Basement | 2700 | 2700 | 0. 001 - 0.002 |