Element | Symbol | Mean | Std. dev. | Minimum | Maximum |
---|---|---|---|---|---|
Aluminum | Al (wt%) | 2.425 | 0.669 | 1.154 | 4.958 |
Arsenic | As (ppm) | 4.403 | 1.571 | 1.578 | 10.873 |
Calcium | Ca (wt%) | 0.494 | 1.387 | 0.035 | 10.665 |
Copper | Cu (ppm) | 9.058 | 3.547 | 3.413 | 24.260 |
Iron | Fe (wt%) | 1.565 | 0.689 | 0.597 | 4.941 |
Mercury | Hg (ppm) | 0.058 | 0.095 | 0.010 | 0.935 |
Magnesium | Mg (wt%) | 0.159 | 0.066 | 0.076 | 0.510 |
Manganese | Mn (ppm) | 398.535 | 186.166 | 96.276 | 1351.550 |
Sodium | Na (wt%) | 0.136 | 0.080 | 0.029 | 0.363 |
Phosphorus | P (wt%) | 0.028 | 0.015 | 0.008 | 0.101 |
Lead | Pb (ppm) | 13.274 | 6.240 | 3.755 | 49.675 |
Selenium | Se (ppm) | 0.343 | 0.131 | 0.101 | 0.794 |
Titanium | Ti (wt%) | 0.344 | 0.180 | 0.110 | 1.056 |
Zinc | Zn (ppm) | 33.211 | 12.812 | 11.532 | 93.955 |