San Cristóbal (Nor Lípez)
Nor Lípez Province, Potosí Department (south-western Bolivia), Bolivia
Epithermal depositsAg-Zn-Pb
- Type
- Epithermal disseminated Ag-Zn-Pb deposit in Miocene volcanic and sedimentary rocks
Very large silver-zinc deposit discovered in the 1990s, related to dacitic intrusions emplaced at about 8.5 Ma. Its weakly radiogenic lead comes for about 75 % from the Middle Proterozoic metamorphic basement (Arequipa-Antofalla terrane); Kamenov et al. (2002) make it the south-eastern limit of a new ore lead isotope province. 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 |
|---|---|---|---|---|
| 17.805 ± 0.043 | 17.766 / 17.882 | 6 | galena Mean and standard deviation recalculated from 6 samples, Table 3 (99SC01 to 04, 08 and 09; cores from 70 to 284 m and Trapiche mine adit). Weakly radiogenic lead, dominated by the metamorphic basement. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 17.89 | 1 | pyrrhotite Single analysis, Table 3 (99SC06, missing from the Table 1 sample descriptions). | 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 |
|---|---|---|---|---|
| 15.598 ± 0.029 | 15.555 / 15.631 | 6 | galena Mean and standard deviation recalculated from 6 samples, Table 3 (99SC01 to 04, 08 and 09; cores from 70 to 284 m and Trapiche mine adit). Weakly radiogenic lead, dominated by the metamorphic basement. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 15.577 | 1 | pyrrhotite Single analysis, Table 3 (99SC06, missing from the Table 1 sample descriptions). | 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 |
|---|---|---|---|---|
| 38.088 ± 0.09 | 37.954 / 38.206 | 6 | galena Mean and standard deviation recalculated from 6 samples, Table 3 (99SC01 to 04, 08 and 09; cores from 70 to 284 m and Trapiche mine adit). Weakly radiogenic lead, dominated by the metamorphic basement. | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
| 38.068 | 1 | pyrrhotite Single analysis, Table 3 (99SC06, missing from the Table 1 sample descriptions). | Kamenov et al. (2002), Sources of lead in the San Cristobal, Pulacayo, and Potosí mining … |
Deposits of the same type
- Toldos (San Cristóbal district) Bolivia
- Pulacayo Bolivia
- Lavisa-Ocurí Bolivia
- San José (Oruro) Bolivia
- Orcopampa Peru
- Julcani Peru
- Quiruvilca Peru
- Angela Argentina
Cite this page
IsoFind Atlas (2026). San Cristóbal (Nor Lípez), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/san-cristobal-nor-lipez/ (accessed 2026-10-13).
@misc{isofind2026sancristobalnorlipezisotopesi,
title = {San Cristóbal (Nor Lípez), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/san-cristobal-nor-lipez/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13