Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 2.882 | 0.324 | 2.357 | 4.472 |
Arsenic | As (ppm) | 4.912 | 2.164 | 2.605 | 14.873 |
Calcium | Ca (wt%) | 3.649 | 1.642 | 0.495 | 10.259 |
Copper | Cu (ppm) | 7.017 | 1.535 | 2.913 | 11.974 |
Iron | Fe (wt%) | 1.190 | 0.133 | 0.951 | 1.747 |
Mercury | Hg (ppm) | 0.016 | 0.006 | 0.010 | 0.040 |
Magnesium | Mg (wt%) | 0.352 | 0.072 | 0.224 | 0.684 |
Manganese | Mn (ppm) | 384.636 | 192.845 | 187.389 | 1308.500 |
Sodium | Na (wt%) | 0.246 | 0.061 | 0.137 | 0.441 |
Phosphorus | P (wt%) | 0.019 | 0.003 | 0.009 | 0.030 |
Lead | Pb (ppm) | 14.137 | 3.180 | 7.720 | 22.858 |
Selenium | Se (ppm) | 0.300 | 0.077 | 0.105 | 0.499 |
Titanium | Ti (wt%) | 0.211 | 0.018 | 0.164 | 0.277 |
Zinc | Zn (ppm) | 28.250 | 3.617 | 22.079 | 44.900 |