Longnan granitic catchment (Nanling belt)
Longnan County, southern Jiangxi, China
Rivers and surface water
- Type
- River or surface water
Small catchment on Nanling granite, the W-Sn granite region, under a humid subtropical climate; very slow weathering (30 m/Ma) and regolith over 10 m thick. Natural reference for dissolved tungsten from granite weathering. Coordinates from the article.
δ186/184W in ‰ (per mil) Values of the same system
Standard : NIST SRM 3163
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.3 ± 0.04 ‰ | 4 | Published mean and 2 standard errors from 4 stream waters (text); individual values in Table S5, not consulted. Heavier than bedrock (0.00 ‰) and coarse sand (-0.01 ‰): secondary precipitates take up light tungsten. Large rivers range from 0.17 to 0.71 ‰ (mean 0.37 ‰, n = 35). | Yang et al. (2022), Stable tungsten isotope systematics on the Earth's surface, Geochimic… |
Deposits of the same type
- Hengshi River and tributaries, middle and lower reaches (sites 5 to 13) China
- Middle Yangtze (Jingsha to Jiujiang) China
- Yangtze River (Changjiang) China
- Erren River Taïwan
- Yangtze, Three Gorges (Wanxian to Yichang) China
- River downstream of the Fanjia-Caiyuan confluence (Xiaozhaizi) China
- Caiyuan river (little affected by mining) China
- Fanjia river downstream of Niujiaotang China
Cite this page
IsoFind Atlas (2026). Longnan granitic catchment (Nanling belt), isotope signatures. https://www.isofind.tech/isotopes/en/sites/bassin-versant-granitique-de-longnan-ceinture-du-nanling/ (accessed 2026-10-13).
@misc{isofind2026longnangraniticcatchmentnanli,
title = {Longnan granitic catchment (Nanling belt), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/bassin-versant-granitique-de-longnan-ceinture-du-nanling/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13