Figeac
Southern Massif Central (western edge of the Massif Central), France
Mississippi Valley TypePb-Zn
- Type
- Stratabound or massive Pb-Zn in carbonates
Karstic sphalerite-calcite masses in the Sinemurian (about 50,000 t metal). Indicative coordinates.
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.55 ± 0.01 | 18.55 / 18.56 | 2 | galena Mean and standard deviation recalculated from 2 analyses, Table 2. Population 2, more radiogenic: Hercynian or later mineralisation, linked to granitoids or fluid circulation. | Brevart et al. (1982), Metallogenic provinces and the remobilization process studied by l… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.64 ± 0.01 | 15.64 / 15.65 | 2 | galena Mean and standard deviation recalculated from 2 analyses, Table 2. Population 2, more radiogenic: Hercynian or later mineralisation, linked to granitoids or fluid circulation. | Brevart et al. (1982), Metallogenic provinces and the remobilization process studied by l… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.6 ± 0.01 | 38.59 / 38.61 | 2 | galena Mean and standard deviation recalculated from 2 analyses, Table 2. Population 2, more radiogenic: Hercynian or later mineralisation, linked to granitoids or fluid circulation. | Brevart et al. (1982), Metallogenic provinces and the remobilization process studied by l… |
Deposits of the same type
- Cambounes France
- Cusses (Brusque) France
- La Loubatière France
- Brusque France
- Bibaud France
- La Rabasse France
- Marcory France
- Villeneuve-Minervois France
Cite this page
IsoFind Atlas (2026). Figeac, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/figeac/ (accessed 2026-10-13).
@misc{isofind2026figeacisotopesignatures,
title = {Figeac, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/figeac/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13