Moinho do Picão (Portugal)
Bragança district, Trás-os-Montes, Portugal
Other hydrothermalSb
- Type
- Stibnite-quartz veins
Stibnite-quartz veins of the Bragança district (Galicia-Trás-os-Montes zone), in allochthonous and parautochthonous thrust sheets with Silurian to Devonian phyllites; no granite crops out near the veins. Stibnite lead (Neiva et al., 2008) close to the orogene curve, µ2 of 9.66 to 10.04: homogeneous upper-crustal source, probably the host metasediments. Coordinates not published (map only).
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.188 | 1 | stibnite Single analysis; sample Moinho do Picão; µ2 = 9.77 (Stacey and Kramers). | Neiva et al. (2008), Antimony quartz and antimony-gold quartz veins from northern Portuga… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.608 | 1 | stibnite Single analysis; sample Moinho do Picão; µ2 = 9.77 (Stacey and Kramers). | Neiva et al. (2008), Antimony quartz and antimony-gold quartz veins from northern Portuga… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.425 | 1 | stibnite Single analysis; sample Moinho do Picão; µ2 = 9.77 (Stacey and Kramers). | Neiva et al. (2008), Antimony quartz and antimony-gold quartz veins from northern Portuga… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Moinho do Picão (Portugal), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/moinho-do-picao-portugal/ (accessed 2026-10-16).
@misc{isofind2026moinhodopicaoportugalisotopes,
title = {Moinho do Picão (Portugal), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/moinho-do-picao-portugal/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16