Table 3. Occurrence States of the Major Elements in the SHPS Samples.
| element | occurrence states of phases |
|---|---|
| Fe | FeO(OH), Fe3O4, Fe2O3, ZnFe2O4 |
| Zn | ZnFe2O4, ZnO, Fe2ZnO4 |
| Cl | NaCl |
| Ca | CaO, CaCO3 |
| Si | SiO2 |
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