Paddy soil profiles around Niujiaotang
Duyun, Qiannan, Guizhou, China
Soils
- Type
- Soil
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). Three profiles of high (HP, near the mine), medium (MP) and low (LP, downstream) pollution; Fe and Al oxides control zinc migration without clearly fractionating it. Indicative coordinates.
δ66Zn in ‰ (per mil) Values of the same system
Standard : IRMM-3702
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.29 ± 0.08 ‰ | −0.37 / −0.14 ‰ | 7 | Mean and standard deviation recalculated from 7 samples, Table 3. HP profile, 0 to 90 cm. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
| −0.27 ± 0.03 ‰ | −0.31 / −0.22 ‰ | 6 | Mean and standard deviation recalculated from 6 samples, Table 3. MP profile, 0 to 80 cm. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
| −0.13 ± 0.03 ‰ | −0.17 / −0.08 ‰ | 8 | Mean and standard deviation recalculated from 8 samples, Table 3. LP profile, 0 to 100 cm, close to geogenic soil. The "geogenic soils" GS1 to GS4 of Table 4 (mean -0.16 ‰) repeat LP-1 to LP-4 exactly: not entered separately. | Xia et al. (2020), Zinc isotope revealing zinc's sources and transport processes in karst… |
Deposits of the same type
- Paddy fields along the Fanjia river China
- Huaxi control site soils China
- Qingzhen power plant soils China
- Wanshan mercury mine soils China
- Hezhang artisanal zinc smelting area soils China
- Soils and sediments of the artisanal zinc smelting region (Guizhou) China
- Regional background soils north-east of Jinding China
- Agricultural soils north-east of the Jinding mine China
Cite this page
IsoFind Atlas (2026). Paddy soil profiles around Niujiaotang, isotope signatures. https://www.isofind.tech/isotopes/en/sites/profils-de-sols-de-riziere-autour-de-niujiaotang/ (accessed 2026-10-13).
@misc{isofind2026paddysoilprofilesaroundniujia,
title = {Paddy soil profiles around Niujiaotang, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/profils-de-sols-de-riziere-autour-de-niujiaotang/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13