| Variogram parameters | P2O5 % | Thickness | Cross Variogram | ||||||
| West | East | West | East | West | East | ||||
| Lower | Upper | Lower | Upper | Lower | Upper | ||||
| Type | Gauss. | Sph. | Sph. | Sph. | Sph. | Sph. | Expon. | Gauss. | Gauss. |
| Direction | Global | Global | Global | Global | Global | Global | Global | Global | Global |
| Range, m | 705 | 310 | 338 | 814 | 222 | 225 | 596 | 237 | 530 |
| Nugget effect (C0) | 0.52 | 0.0 | 0.0 | 0.0 | 0.0 | 0.02 | 0.0 | 0.0 | -0.03 |
| Sill (C) | 3.77 | 5.9 | 5.5 | 0.08 | 0.13 | 0.03 | 0.03 | 0.09 | -0.16 |
| Screen Effect Ratio C0/C | 0.14 | 0.0 | 0.0 | 0.0 | 0.0 | 0.67 | 0.0 | 0.0 | 0.19 |