Pulacayo
Antonio Quijarro Province, Potosí Department, Bolivia
Epithermal depositsAg-Zn-Pb (Cu)
- Type
- Polymetallic Ag-Zn-Pb veins related to a Miocene volcanic centre
Large historical silver district (Tajo vein). Ore lead similar to that of Potosí and within the field of the Palaeozoic and Cretaceous sedimentary rocks: it would come from assimilation of these rocks by the magma, not from their leaching (Kamenov et al., 2002). Coordinates of the Table 1 samples. Indicative coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.694 ± 0.066 | 18.62 / 18.746 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3 (98M024A, B and D), crystals from a coarse pyrite aggregate of the Tajo vein. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 18.6 | 1 | galena Single analysis, Table 3 (98M024C), same aggregate as the pyrites; the galena is less radiogenic than the accompanying pyrites. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.755 ± 0.055 | 15.698 / 15.808 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3 (98M024A, B and D), crystals from a coarse pyrite aggregate of the Tajo vein. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 15.664 | 1 | galena Single analysis, Table 3 (98M024C), same aggregate as the pyrites; the galena is less radiogenic than the accompanying pyrites. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 39.057 ± 0.152 | 38.913 / 39.216 | 3 | pyrite Mean and standard deviation recalculated from 3 samples, Table 3 (98M024A, B and D), crystals from a coarse pyrite aggregate of the Tajo vein. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 38.85 | 1 | galena Single analysis, Table 3 (98M024C), same aggregate as the pyrites; the galena is less radiogenic than the accompanying pyrites. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
Deposits of the same type
- San Cristóbal (Nor Lípez) Bolivia
- Toldos (San Cristóbal district) Bolivia
- Lavisa-Ocurí Bolivia
- San José (Oruro) Bolivia
- Orcopampa Peru
- Julcani Peru
- Quiruvilca Peru
- Angela Argentina
Cite this page
IsoFind Atlas (2026). Pulacayo, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/pulacayo/ (accessed 2026-10-13).
@misc{isofind2026pulacayoisotopesignatures,
title = {Pulacayo, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/pulacayo/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13