Fanjia river downstream of Niujiaotang
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). Sites 2 to 5, from the mining core downstream; sediment zinc from 10.2 to 1.7 g/kg downstream. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : IRMM-3702
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.09 ± 0.03 ‰ | −0.13 / −0.07 ‰ | 4 | Mean and standard deviation recalculated from 4 samples, Table 4. Filtered river water (W2 to W5). | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
| −0.29 ± 0.06 ‰ | −0.36 / −0.22 ‰ | 4 | Mean and standard deviation recalculated from 4 samples, Table 4. Bed sediments (S2 to S5): mixture of tailings, dust and geogenic soil. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
Deposits of the same type
- Caiyuan river (little affected by mining) China
- River downstream of the Fanjia-Caiyuan confluence (Xiaozhaizi) 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). Fanjia river downstream of Niujiaotang, isotope signatures. https://www.isofind.tech/isotopes/en/sites/riviere-fanjia-en-aval-de-niujiaotang/ (accessed 2026-10-13).
@misc{isofind2026fanjiariverdownstreamofniujia,
title = {Fanjia river downstream of Niujiaotang, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/riviere-fanjia-en-aval-de-niujiaotang/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13