Caiyuan river (little affected by mining)
Duyun, Qiannan, Guizhou, China
Rivers and surface water
- Type
- River or surface water
Niujiaotang zinc mine, mined on a large scale, in carbonate karst terrain. Waters stay alkaline (pH 8.6 to 9.0): mine drainage matters little, anthropogenic zinc mainly travelling with fine tailings dust dispersed by wind (19.5 % on average). Site 6, reference tributary upstream of the confluence with the Fanjia. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : IRMM-3702
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.21 ‰ | 1 | One analysis, Table 4. Filtered river water (W6), lighter than the Fanjia. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… | |
| −0.12 ‰ | 1 | One analysis, Table 4. Bed sediment (S6), close to geogenic background. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
Deposits of the same type
- River downstream of the Fanjia-Caiyuan confluence (Xiaozhaizi) China
- Fanjia river downstream of Niujiaotang China
- Upper Yangtze (Yibin to Fuling) China
- Yangtze, Three Gorges (Wanxian to Yichang) China
- Hengshi River and tributaries, middle and lower reaches (sites 5 to 13) China
- Longnan granitic catchment (Nanling belt) China
- Middle Yangtze (Jingsha to Jiujiang) China
- Yangtze River (Changjiang) China
Cite this page
IsoFind Atlas (2026). Caiyuan river (little affected by mining), isotope signatures. https://www.isofind.tech/isotopes/en/sites/riviere-caiyuan-peu-touchee-par-la-mine/ (accessed 2026-10-13).
@misc{isofind2026caiyuanriverlittleaffectedbym,
title = {Caiyuan river (little affected by mining), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/riviere-caiyuan-peu-touchee-par-la-mine/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13