| Element | Minimum | Mean | STD | Maximum | Trend |
| Iron (Fe) | 13,500 | 23,400 | 11,600 | 46,400 | - |
| Manganese (Mn) | 134 | 424 | 281 | 1090 | - |
| Cobalt (Co) | 3.5 | 7.9 | 5.9 | 21.8 | Fe |