Val Pirocca
Central Alps, Ticino, Switzerland
Orogenic goldW
- Type
- Mesothermal scheelite veins
Tungsten veins in metamorphic rocks, of uncertain Palaeozoic age. Approximate position. Indicative coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.107 | 1 | scheelite One analysis, 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 |
|---|---|---|---|---|
| 15.557 | 1 | scheelite One analysis, 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 |
|---|---|---|---|---|
| 37.94 | 1 | scheelite One analysis, 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… |
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Cite this page
IsoFind Atlas (2026). Val Pirocca, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/val-pirocca/ (accessed 2026-10-13).
@misc{isofind2026valpiroccaisotopesignatures,
title = {Val Pirocca, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/val-pirocca/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13