Chorolque
Potosí Department, southern Bolivian tin belt, Bolivia
PorphyriesSn (Bi, Ag)
- Type
- Tin porphyry (volcanic vent breccia)
16 Ma volcanic complex with a 1 km wide vent surrounded by crystal- and pumice-rich rhyodacitic tuffs; tin-mineralized breccia of silicified clasts (veins and stockworks). Concentric zoning from central tourmalinization and silicification to sericitization and distal propylitization (Sillitoe et al., 1975; Grant et al., 1979, 1980, quoted by Wittenbrink et al., 2009). Coordinates not published.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −8.5 ‰ | 1 | quartz-hosted melt inclusion of the porphyry Single analysis (C65a). Published mean of the Bolivian tin-silver porphyries: -11.4 ± 2.7 ‰ (n = 10), intracrustal melting of pelitic rocks. 75 µg/g B. | Wittenbrink et al. (2009), Boron isotope composition of melt inclusions from porphyry sys… |
Deposits of the same type
- Escondida Chile
- Chuquicamata Chile
- Bingham Canyon United States
- Mikheevskoe Russia
- Northparkes Australia
- Grasberg Indonesia
- Henderson United States
- Climax United States
Cite this page
IsoFind Atlas (2026). Chorolque, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/chorolque/ (accessed 2026-10-19).
@misc{isofind2026chorolqueisotopesignatures,
title = {Chorolque, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/chorolque/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19