San Nicolás (Ossa-Morena)
Ossa-Morena Zone, Spain
Other hydrothermalW-Sn
- Type
- Granite-related W-Sn veins
Wolframite-cassiterite veins in a Variscan granitoid (Late Palaeozoic). Deposit not located: the place cited in the article could not be tied to reliable coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.303 ± 0.028 | 18.283 / 18.323 | 2 | wolframite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.598 ± 0.001 | 15.597 / 15.598 | 2 | wolframite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.36 ± 0.041 | 38.331 / 38.389 | 2 | wolframite Mean and standard deviation recalculated from 2 samples, Table 2. Measured ratios, not age-corrected: the author regards them as close to initial common lead. | Chiaradia (2003), The evolution of tungsten sources in crustal mineralization from Archea… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). San Nicolás (Ossa-Morena), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/san-nicolas-ossa-morena/ (accessed 2026-10-13).
@misc{isofind2026sannicolasossamorenaisotopesi,
title = {San Nicolás (Ossa-Morena), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/san-nicolas-ossa-morena/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13