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Organic mattera metals, and sulfate concentrations in the hydrozincite sediment sampled at station 4 in Rio Naracauli
| Element or compound | Concn (mg kg−1) |
|---|---|
| Zn | 519,000 |
| Pb | 6,500 |
| Cd | 540 |
| Fe | 1,040 |
| Mn | 30 |
| Cu | 260 |
| Ni | 370 |
| Co | 4 |
| Ca | 10,300 |
| Mg | 530 |
| K | 540 |
| SO42− | 6,600 |
The concentration of organic matter was 10%.
