Table 2.
Main chemical components of undisturbed soil.
| Chemical Components | CaO | MgO | SiO2 | Al2O3 | Fe2O3 | TiO3 | K2O | ZnO | CdO | PbO | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Contents (%) | 4.06 | 3.42 | 63.98 | 17.71 | 5.48 | 0.79 | 3.36 | ND | ND | ND | 1.2 |
Note: ND means not detected.
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