Upper Orb: Bournac Creek, Avène Lake and Orb River
Hérault, upper Orb catchment, France
Rivers and surface water
- Type
- River or surface water
Surface waters of catchments marked by former mines (Sb, Pb-Zn, coal); δ123Sb measured against PlasmaCAL solution lot SC0108283 (about +0.04 ‰ relative to the Montpellier SPEX). Sb is dissolved and dominated by Sb(V); conservative transport along the Gardon d'Alès (Resongles et al., 2015). Bournac Creek below the former antimony mine (stibnite with Pb-Sb sulfosalts and tetrahedrite), Avène Lake and the Orb downstream; δ123Sb increasing downstream (mean +0.03 ± 0.08 ‰), possibly through fractionation in the lake or other sources. Indicative coordinates.
δ123Sb in ‰ (per mil) Values of the same system
Standard : SCP Science PlasmaCAL, lot SC0108283
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.06 ± 0.06 ‰ | 1 | water, station O1 (Bournac Creek below the mine) Single analysis; ± 0.06 (2s); 53.8 µg/L Sb; lowest value of the study. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.03 ± 0.06 ‰ | 1 | water, station O2 (Avène Lake) Single analysis; ± 0.06 (2s); 1.3 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.11 ± 0.06 ‰ | 1 | water, station O3 (Orb at Avène, below the dam) Single analysis; ± 0.06 (2s); 1.1 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… |
Deposits of the same type
- Gardon catchment: surface waters (2013) France
- Seine France
- Saane (Sarine), Switzerland Switzerland
- Birs, Switzerland Switzerland
- Rhine at Laufenburg Switzerland
- Verzasca, Switzerland Switzerland
- Ticino, Switzerland Switzerland
- Rhine at Rueun Switzerland
Cite this page
IsoFind Atlas (2026). Upper Orb: Bournac Creek, Avène Lake and Orb River, isotope signatures. https://www.isofind.tech/isotopes/en/sites/orb-amont-ruisseau-de-bournac-lac-d-avene-et-orb/ (accessed 2026-10-16).
@misc{isofind2026upperorbbournaccreekavenelake,
title = {Upper Orb: Bournac Creek, Avène Lake and Orb River, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/orb-amont-ruisseau-de-bournac-lac-d-avene-et-orb/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16