Cueva de la Mora
Huelva (Iberian Pyrite Belt), Spain
Volcanogenic massive sulfidesCu-Zn-Pb (pyrite)
- Type
- Volcanogenic massive sulphide
Volcanogenic massive sulphide body of the northern Iberian Pyrite Belt, hosted by felsic volcanic rocks of the volcano-sedimentary complex (early Tournaisian to middle Visean), metamorphosed at sub-greenschist facies (about 350 °C). Mine no longer in production, with hydrothermal replacement and recrystallisation textures and high mean δ34S, like Concepción and Rio Tinto (Velasco et al., 1998). Chloritised footwall rhyolite: fluid in equilibrium with chlorite (210 to 362 °C) at δ18O +12.0 to +12.5 ‰ and δD -38.5 ‰, among the most 18O-rich known for this deposit type. Coordinates not given.
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 13.15 ± 0.35 ‰ | 12.9 / 13.4 ‰ | 2 | chlorite of the chloritised footwall rhyolite Mean and standard deviation recalculated from 2 analyses, fluid calculated at 350 °C at +12.0 to +12.5 ‰. | Sánchez-España et al. (2003), Source and evolution of ore-forming hydrothermal fluids in … |
δD in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −83.5 ‰ | −83.5 / −83.5 ‰ | 2 | chlorite of the chloritised footwall rhyolite Mean and standard deviation recalculated from 2 analyses, aliquots CM2 and CM2b give the same value; calculated fluid: -38.5 ‰. | Sánchez-España et al. (2003), Source and evolution of ore-forming hydrothermal fluids in … |
Deposits of the same type
- Iberian Pyrite Belt (representative example) Spain/Portugal
- Neves-Corvo Portugal
- Kidd Creek Canada
- Flin Flon Canada
- Rio Tinto Spain
- Cyclades (Kondaros-Katsimouti and Triades) Greece
- Boliden Sweden
- Tharsis Spain
Cite this page
IsoFind Atlas (2026). Cueva de la Mora, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/cueva-de-la-mora/ (accessed 2026-10-14).
@misc{isofind2026cuevadelamoraisotopesignature,
title = {Cueva de la Mora, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/cueva-de-la-mora/},
note = {Accessed 2026-10-14}
}Updated : 2026-10-14