Basaltic latosol profile of the Leizhou Peninsula
Guangdong, northern Leizhou Peninsula (Zhanjiang), China
Soils
- Type
- Soil
6 m profile under a tropical monsoon climate (23.1 °C, 1600 mm/yr), from weakly weathered basalt (C horizon) to an indurated ferruginous laterite; kaolinite, gibbsite, maghemite and hematite dominate above 4 m. Ga rises from 19.9 µg/g in the basalt to 42.7 µg/g in the soil, mostly in the lattice of Al- and Fe-bearing minerals, and the soil becomes lighter in 71Ga (down to 0.51 ‰): heavy Ga leaves in solution, Δ71Ga(solution-weathered rock) of at most 1.50 ‰ from a Rayleigh model (Yuan et al., 2022). Published coordinates.
δ71Ga in ‰ (per mil) Values of the same system
Standard : NIST SRM 994
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.62 ± 0.02 ‰ | 0.61 / 0.64 ‰ | 2 | latosol, A and AB horizons (0 to 40 cm) Mean and standard deviation recalculated from 2 analyses, samples 15HG-01 and 15HG-05. | Yuan et al. (2022), Gallium isotope constraints on the intense weathering of basalt, Geoc… |
| 0.56 ± 0.05 ‰ | 0.51 / 0.64 ‰ | 8 | latosol, B horizon (40 to 250 cm, Fe-Mn nodules at about 160 to 180 cm) Mean and standard deviation recalculated from 8 analyses, samples 15HG-06 to 15HG-24 as bulk soil (sequential-extraction residues not included); minimum of 0.51 ‰ in the nodule layer. | Yuan et al. (2022), Gallium isotope constraints on the intense weathering of basalt, Geoc… |
| 0.61 ± 0.03 ‰ | 0.58 / 0.67 ‰ | 7 | latosol, BC transition horizon (250 to 400 cm) Mean and standard deviation recalculated from 7 analyses, samples 15HG-28 to 15HG-36. | Yuan et al. (2022), Gallium isotope constraints on the intense weathering of basalt, Geoc… |
| 0.62 ± 0.01 ‰ | 0.61 / 0.63 ‰ | 3 | weakly weathered basalt, C horizon (400 to 520 cm) Mean and standard deviation recalculated from 3 analyses, samples 15HG-38, 15HG-39 and 15HG-B1; fresh bedrock basalt at +0.69 and +0.70 ‰. | Yuan et al. (2022), Gallium isotope constraints on the intense weathering of basalt, Geoc… |
Deposits of the same type
- Western Guangdong granite weathering profile China
- Paddy soil profiles around Niujiaotang China
- Paddy fields along the Fanjia river China
- Huaxi control site soils China
- Wanshan mercury mine soils China
- Qingzhen power plant soils China
- Hezhang artisanal zinc smelting area soils China
- Soils and sediments of the artisanal zinc smelting region (Guizhou) China
Cite this page
IsoFind Atlas (2026). Basaltic latosol profile of the Leizhou Peninsula, isotope signatures. https://www.isofind.tech/isotopes/en/sites/profil-de-latosol-sur-basalte-de-la-peninsule-de-leizhou/ (accessed 2026-10-15).
@misc{isofind2026basalticlatosolprofileofthele,
title = {Basaltic latosol profile of the Leizhou Peninsula, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/profil-de-latosol-sur-basalte-de-la-peninsule-de-leizhou/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15