Puy-les-Vignes
Haute-Vienne, Limousin (northwestern Massif Central), France
Other hydrothermalW
- Type
- Wolframite-bearing hydrothermal breccia pipe
The only known tungsten-bearing breccia pipe of the Massif Central, hosted in migmatitic biotite-sillimanite paragneisses of the Saint-Léonard-de-Noblat unit; oval breccia of 80 × 340 m cut by quartz-wolframite-sulphide veins mined down to 300 m (about 4000 t WO3 at 0.5 %, second French tungsten mine of the 20th century). Wolframite dated at 317.7 ± 0.7 Ma (U-Pb), muscovite at 323.4 ± 0.9 Ma (Ar-Ar); Auriat and Aureil granites nearby, no granite found at depth. Harlaux et al. (2019): four tourmaline generations from -13.3 to -7.8 ‰, high-temperature interaction between fluids and the metamorphic basement.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −9.16 ± 0.98 ‰ | −11.06 / −7.78 ‰ | 11 | greisen tourmaline (Tur 1, pre-ore), sample PLV-02-08a Mean and standard deviation recalculated from 11 analyses, -11.06 to -7.78 (02 c -11.06; 09 c -10.07; 06 c -10.00; 08 c -9.63; 10 b -9.41; 11 b -9.16; 01 b -8.65; 03 b -8.45; 04 b -8.42; 05 s -8.17; 07 s -7.78). Core (c), rim (b) and overgrowth (s); labels are the analysis numbers of Table 3. | Harlaux et al. (2019), Origin of the atypical Puy-les-Vignes W breccia pipe (Massif Centr… |
| −11.9 ± 0.59 ‰ | −13.08 / −11.14 ‰ | 8 | tourmalinite rimming gneiss clasts (Tur 2a, pre-ore), sample PLV-02-01a Mean and standard deviation recalculated from 8 analyses, -13.08 to -11.14 (03 c -13.08; 01 c -12.07; 07 c -11.69; 08 b -11.55; 02 s -12.15; 04 s -12.03; 05 s -11.46; 06 s -11.14). Core (c), rim (b) and overgrowth (s); labels are the analysis numbers of Table 3. | Harlaux et al. (2019), Origin of the atypical Puy-les-Vignes W breccia pipe (Massif Centr… |
| −12.71 ± 0.33 ‰ | −13.21 / −12.11 ‰ | 12 | acicular vein tourmaline (Tur 3, syn-ore), sample PLV-02-01c Mean and standard deviation recalculated from 12 analyses, -13.21 to -12.11 (07 c -13.05; 05 c -12.99; 12 c -12.89; 01 c -12.76; 10 c -12.71; 06 c -12.62; 03 c -12.11; 11 b -13.21; 08 b -12.91; 02 b -12.62; 09 b -12.42; 04 b -12.25). Core (c), rim (b) and overgrowth (s); labels are the analysis numbers of Table 3. | Harlaux et al. (2019), Origin of the atypical Puy-les-Vignes W breccia pipe (Massif Centr… |
| −11.79 ± 0.94 ‰ | −13.26 / −10.3 ‰ | 15 | microbreccia tourmaline (Tur 4, post-ore), sample PLV-02-13b Mean and standard deviation recalculated from 15 analyses, -13.26 to -10.30 (14 c -13.02; 13 c -12.45; 01 c -12.29; 07 c -12.18; 03 b -12.08; 12 b -12.04; 02 b -11.97; 05 b -10.44; 11 b -10.30; 06 s -13.26; 04 s -12.43; 15 s -11.75; 10 s -11.55; 09 s -10.52; 08 s -10.51). Core (c), rim (b) and overgrowth (s); labels are the analysis numbers of Table 3. | Harlaux et al. (2019), Origin of the atypical Puy-les-Vignes W breccia pipe (Massif Centr… |
Deposits of the same type
- Monts de Blond (Vaulry, Haute-Vienne) France
- Peyrebrune France
- Millau (filon de Galès) France
- Saint-Salvy France
- Lacabarède France
- Montagne Noire gossans France
- Villemagne France
- Folat France
Cite this page
IsoFind Atlas (2026). Puy-les-Vignes, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/puy-les-vignes/ (accessed 2026-10-20).
@misc{isofind2026puylesvignesisotopesignatures,
title = {Puy-les-Vignes, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/puy-les-vignes/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20