Gardon catchment: surface waters (2013)
Gard, Cévennes (Gardon 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). Gardon d'Alès upstream and downstream of the Sb-mineralised zone, its mining tributaries (Ravin des Bernes below the Felgerette mine, Grabieux, Avène, Amous below the Carnoulès Pb-Zn mine) and the Gardon d'Anduze; catchment mean of +0.55 ± 0.21 ‰ (n = 12, tap water included). At the confluence, about 90 % of the Sb comes from the Gardon d'Alès. Indicative coordinates.
δ123Sb in ‰ (per mil) Values of the same system
Standard : SCP Science PlasmaCAL, lot SC0108283
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.23 ± 0.06 ‰ | 1 | river water, station G1 (upper Gardon d'Alès, uncontaminated) Single analysis; ± 0.06 (2s); 0.4 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.74 ± 0.06 ‰ | 1 | river water, station G2 (Gardon d'Alès at Sainte-Cécile) Single analysis; ± 0.06 (2s); 7.7 µg/L Sb; 0.5 ‰ increase and 19-fold Sb rise below the mineralised zone and the Ravin des Bernes input. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.72 ± 0.06 ‰ | 1 | river water, station G3 (Gardon d'Alès at La Tour) Single analysis; ± 0.06 (2s); 4.2 µg/L Sb; value not given in the paper (G2 to G4 mean of +0.72 ± 0.01 ‰), taken from the thesis (7.2 ε, station labelled G2). | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.72 ± 0.06 ‰ | 1 | river water, station G4 (Gardon d'Alès at Les Promelles) Single analysis; ± 0.06 (2s); 2.4 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.65 ± 0.06 ‰ | 1 | river water, station G5 (Gardon d'Alès at Vézénobres) Single analysis; ± 0.06 (2s); 2.4 µg/L Sb; slight decrease ascribed to the Avène. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.62 ± 0.06 ‰ | 1 | river water, station G6 (Gardon at Ners, below the confluence) Single analysis; ± 0.06 (2s); 1.2 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.83 ± 0.06 ‰ | 1 | river water, station T1 (Ravin des Bernes, below the Felgerette antimony mine) Single analysis; ± 0.06 (2s); 87.4 µg/L Sb; highest value of the study. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.6 ± 0.06 ‰ | 1 | river water, station T2 (Grabieux (Pb-Zn mines)) Single analysis; ± 0.06 (2s); 0.6 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.33 ± 0.06 ‰ | 1 | river water, station T3 (Avène (Pb-Zn and pyrite mines)) Single analysis; ± 0.06 (2s); 1.9 µg/L Sb. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.27 ± 0.06 ‰ | 1 | river water, station T4 (Amous, below the Carnoulès Pb-Zn mine) Single analysis; ± 0.06 (2s); 0.5 µg/L Sb; Sb mostly carried by pyrargyrite and galena in the ore. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… | |
| 0.31 ± 0.06 ‰ | 1 | river water, station T5 (Gardon d'Anduze) Single analysis; ± 0.06 (2s); 0.4 µg/L Sb; equal to the Amous: conservative transport. | Resongles et al. (2015), Antimony isotopic composition in river waters affected by ancien… |
Deposits of the same type
- Upper Orb: Bournac Creek, Avène Lake and Orb River France
- Saane (Sarine), Switzerland Switzerland
- Seine France
- Birs, Switzerland Switzerland
- Verzasca, Switzerland Switzerland
- Rhine at Laufenburg Switzerland
- Ticino, Switzerland Switzerland
- Rhine at Rueun Switzerland
Cite this page
IsoFind Atlas (2026). Gardon catchment: surface waters (2013), isotope signatures. https://www.isofind.tech/isotopes/en/sites/bassin-des-gardons-eaux-de-surface-2013/ (accessed 2026-10-16).
@misc{isofind2026gardoncatchmentsurfacewaters2,
title = {Gardon catchment: surface waters (2013), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/bassin-des-gardons-eaux-de-surface-2013/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16