Lot riverbank soils upstream of the Riou Mort confluence
Riou Mort basin and Lot valley, Aveyron and Lot, France
Soils
- Type
- Soil
The Viviez zinc ore processing plant (Vieille Montagne then Umicore) refined up to 100,000 t of zinc per year (1985) by electrolysis and thermal processing; its tailings, very heavy in zinc, polluted the Riou Mort and then the Lot until extraction stopped in 1987. Soils L0 (downstream of Marcenac) and C, zinc from 82 to 279 mg/kg. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : JMC 3-0749L
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.48 ± 0.12 ‰ | 0.4 / 0.57 ‰ | 2 | Mean and standard deviation recalculated from 2 samples, Table 1. L0, low in zinc, is nevertheless heavy (0.57 ‰): possible recycling within the soil. | Sivry et al. (2008), Zn isotopes as tracers of anthropogenic pollution from Zn-ore smelte… |
Deposits of the same type
- Riou Mort basin soils around the Viviez plant France
- Lot riverbank soils downstream of the Riou Mort confluence France
- Wetland downstream of the Ty Gallen mine France
- Klafastaðir Andosol (Hvalfjörður, Iceland) Islande
- Barren ferruginous crust of the Perkoa area Burkina Faso
- Distal soils of the Perkoa area Burkina Faso
- Soils near the Perkoa gossan Burkina Faso
- Pasvik valley and Sør-Varanger (Nikel and Zapolyarny fallout) Norway
Cite this page
IsoFind Atlas (2026). Lot riverbank soils upstream of the Riou Mort confluence, isotope signatures. https://www.isofind.tech/isotopes/en/sites/sols-de-berge-du-lot-en-amont-de-la-confluence-du-riou-mort/ (accessed 2026-10-13).
@misc{isofind2026lotriverbanksoilsupstreamofth,
title = {Lot riverbank soils upstream of the Riou Mort confluence, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/sols-de-berge-du-lot-en-amont-de-la-confluence-du-riou-mort/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13