| Stations | Spearman Rho Test | Mann-Kendall Test | ||
| rs | Degree of Correlation | τken | Degree of Correlation | |
| Rebiya | 0.8 | High extrusive | 0.6 | Medium extrusive |
| Tal afar | 0.8 | High extrusive | 0.6 | Medium extrusive |
| Mosul | 0.9 | Very high extrusive | 0.7 | High extrusive |
| Baaj | 0.8 | High extrusive | 0.7 | High extrusive |
| Kirkuk | 0.8 | High extrusive | 0.6 | Medium extrusive |
| Bayji | 0.7 | High extrusive | 0.5 | Medium extrusive |
| Aana | 0.7 | High extrusive | 0.5 | Medium extrusive |
| Khanaqin | 0.6 | Medium extrusive | 0.5 | Medium extrusive |
| Haditha | 0.8 | High extrusive | 0.7 | High extrusive |
| Baghdad | 0.8 | High extrusive | 0.6 | Medium extrusive |
| Rutba | 0.7 | High extrusive | 0.7 | High extrusive |
| Azizia | 0.7 | High extrusive | 0.5 | Medium extrusive |
| Karbala | 0.8 | High extrusive | 0.6 | Medium extrusive |
| Hilla | 0.7 | High extrusive | 0.4 | Medium extrusive |
| Al-Hayy | 0.7 | High extrusive | 0.5 | Medium extrusive |
| Diwaniyah | 0.8 | High extrusive | 0.7 | High extrusive |
| Amarah | 0.8 | High extrusive | 0.7 | High extrusive |
| Basrah | 0.8 | High extrusive | 0.6 | Medium extrusive |