Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 4.629 | 0.884 | 3.443 | 8.979 |
Arsenic | As (ppm) | 1.876 | 0.745 | 1.002 | 5.717 |
Calcium | Ca (wt%) | 0.420 | 0.113 | 0.164 | 0.643 |
Copper | Cu (ppm) | 9.542 | 2.987 | 5.171 | 24.545 |
Iron | Fe (wt%) | 2.634 | 0.643 | 1.476 | 5.134 |
Mercury | Hg (ppm) | 0.047 | 0.018 | 0.019 | 0.139 |
Magnesium | Mg (wt%) | 0.165 | 0.047 | 0.084 | 0.347 |
Manganese | Mn (ppm) | 972.188 | 315.202 | 451.413 | 2308.830 |
Sodium | Na (wt%) | 0.404 | 0.069 | 0.237 | 0.507 |
Phosphorus | P (wt%) | 0.024 | 0.007 | 0.013 | 0.052 |
Lead | Pb (ppm) | 29.250 | 4.122 | 22.313 | 49.825 |
Selenium | Se (ppm) | 0.188 | 0.081 | 0.113 | 0.605 |
Titanium | Ti (wt%) | 0.699 | 0.073 | 0.549 | 0.872 |
Zinc | Zn (ppm) | 34.370 | 9.872 | 23.314 | 82.697 |