Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 4.352 | 1.302 | 1.891 | 6.694 |
Arsenic | As (ppm) | 9.813 | 1.515 | 5.781 | 11.836 |
Calcium | Ca (wt%) | 0.428 | 0.155 | 0.135 | 0.707 |
Copper | Cu (ppm) | 13.523 | 4.702 | 7.624 | 24.349 |
Iron | Fe (wt%) | 2.063 | 0.287 | 1.228 | 2.660 |
Mercury | Hg (ppm) | 0.026 | 0.005 | 0.020 | 0.034 |
Magnesium | Mg (wt%) | 0.357 | 0.173 | 0.104 | 0.660 |
Manganese | Mn (ppm) | 826.848 | 233.476 | 520.534 | 1463.720 |
Sodium | Na (wt%) | 0.650 | 0.170 | 0.257 | 0.896 |
Phosphorus | P (wt%) | 0.055 | 0.007 | 0.038 | 0.075 |
Lead | Pb (ppm) | 19.688 | 2.272 | 14.329 | 24.422 |
Selenium | Se (ppm) | 0.292 | 0.114 | 0.155 | 0.600 |
Titanium | Ti (wt%) | 0.309 | 0.017 | 0.274 | 0.344 |
Zinc | Zn (ppm) | 50.117 | 15.536 | 26.632 | 84.000 |