Guanajuato
Guanajuato (central Mexico), Mexico
Epithermal depositsAg-Au
- Type
- Intermediate-sulfidation Ag-Au epithermal (Mexican Silver Belt)
A historic silver district of colonial Mexico, worked since 1548. The Veta Madre, the main vein, cuts Tertiary andesites and rhyolites. Its cumulative silver production is among the largest in the world. Mineralisation is about 30 Ma old (Oligocene).
δ109Ag in ‰ (per mil) Values of the same system
Standard : NIST SRM 978a
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.4 / 0.4 ‰ | acanthite and native silver (hypogene) Typical hypogene range. Guanajuato is one of the seven world-class deposits represented by more than five samples in the study, with Fresnillo, Zacatecas, Santa Eulalia, Hiendelaencina, Priorat and Imiter. | Arribas et al. 2020, The Isotopic Composition of Silver in Ore Minerals, Geochemistry Geo… |
Deposits of the same type
- Zacatecas Mexico
- Fresnillo Mexico
- Pueblo Viejo Dominican Republic
- San José (Oruro) Bolivia
- Aysén, northern group (El Toqui, Katerfeld) Chile
- Aysén, southern group (Fachinal, Mina Silva) Chile
- Aysén, southernmost group (El Faldeo, Lago Chacabuco, Lago Cochrane) Chile
- Cerro Negro (Marianas-San Marcos vein system) Argentina
Cite this page
IsoFind Atlas (2026). Guanajuato, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/guanajuato/ (accessed 2026-10-06).
@misc{isofind2026guanajuatoisotopesignatures,
title = {Guanajuato, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/guanajuato/},
note = {Accessed 2026-10-06}
}Updated : 2026-10-06