Atmospheric inputs to the Huguangyan profile (litter and rain)
Guangdong, Zhanjiang, Huguangyan Maar Lake, China
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8 m lateritic profile on basalt beside Huguangyan Maar Lake (Zhanjiang, Guangdong), tropical climate, profile age about 78 ka; kaolinite, goethite, quartz, hematite and ilmenite. Soils are lighter than the basalt: iron oxides retain 121Sb and 123Sb goes to the waters; atmospheric input (rain, litter) dominant in the upper 4 m (Wu et al., 2024). Indicative coordinates (Huguangyan lake). Litterfall (0.12 to 0.15 µg/g Sb) and rain (0.058 to 0.066 ng/mL) feeding the surface soils; fluxes accumulated over 78 ka: 725 µg/cm2 from rain and 484 µg/cm2 from litter, against 85.5 µg/cm2 released by the basalt.
δ123Sb in ‰ (per mil) Values of the same system
Standard : NIST SRM 3102a
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.279 ± 0.027 ‰ | 0.258 / 0.309 ‰ | 3 | litterfall Mean and standard deviation recalculated from 3 analyses, +0.258 to +0.309 (ZJ-L1 +0.270; ZJ-L2 +0.258; ZJ-L3 +0.309); published as ε123Sb, ± 0.054 ‰ (2 SD) each; published mean of 2.79 ± 0.54 ε. | Wu et al. (2024), Antimony isotopic fractionation during intensive chemical weathering of… |
| 0.281 ± 0.005 ‰ | 0.278 / 0.285 ‰ | 2 | rainwater Mean and standard deviation recalculated from 2 analyses, +0.278 to +0.285 (ZJ-R1 +0.278; ZJ-R2 +0.285); published as ε123Sb, ± 0.010 ‰ (2 SD) each. | Wu et al. (2024), Antimony isotopic fractionation during intensive chemical weathering of… |
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Cite this page
IsoFind Atlas (2026). Atmospheric inputs to the Huguangyan profile (litter and rain), isotope signatures. https://www.isofind.tech/isotopes/en/sites/apports-atmospheriques-au-profil-de-huguangyan-litiere-et-pluie/ (accessed 2026-10-16).
@misc{isofind2026atmosphericinputstothehuguang,
title = {Atmospheric inputs to the Huguangyan profile (litter and rain), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/apports-atmospheriques-au-profil-de-huguangyan-litiere-et-pluie/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16