Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 3.743 | 0.674 | 2.620 | 5.413 |
Arsenic | As (ppm) | 3.001 | 1.049 | 1.320 | 5.780 |
Calcium | Ca (wt%) | 2.340 | 1.080 | 0.462 | 5.192 |
Copper | Cu (ppm) | 7.144 | 2.795 | 1.062 | 16.408 |
Iron | Fe (wt%) | 2.790 | 0.675 | 1.205 | 4.416 |
Mercury | Hg (ppm) | 0.051 | 0.015 | 0.017 | 0.105 |
Magnesium | Mg (wt%) | 0.792 | 0.273 | 0.260 | 1.306 |
Manganese | Mn (ppm) | 510.906 | 86.344 | 244.305 | 676.220 |
Sodium | Na (wt%) | 0.712 | 0.111 | 0.407 | 0.895 |
Phosphorus | P (wt%) | 0.056 | 0.009 | 0.037 | 0.097 |
Lead | Pb (ppm) | 21.739 | 8.179 | 10.418 | 52.274 |
Selenium | Se (ppm) | 0.226 | 0.099 | 0.100 | 0.572 |
Titanium | Ti (wt%) | 0.417 | 0.088 | 0.192 | 0.694 |
Zinc | Zn (ppm) | 61.551 | 24.860 | 31.003 | 172.904 |