Anning (carbonate-hosted clay-type lithium)
Central Yunnan, about 30 km from Kunming, China
OtherLi (Ga, Al)
- Type
- Carbonate-hosted clay-type lithium deposit
Lithium-bearing claystones of the Daoshitou Formation (Lower Permian), derived from weathering of the underlying Carboniferous carbonates, then reworked and preserved in karst depressions. The clays are mainly illite, clinochlore, kaolinite and diaspore or boehmite. Gallium, close to aluminium, tracks clay transformations: solid-state transformation dominates in drill core ZK401, where lithium is best preserved, and dissolution-recrystallisation dominates in drill core ZK406.
δ71Ga in ‰ (per mil) Values of the same system
Standard : NIST SRM 994
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 1.24 ± 0.1 ‰ | 0.97 / 1.33 ‰ | 10 | lithium-bearing claystone, drill core ZK401 Mean and standard deviation of 10 samples, Table 1. Negative correlation between gallium content and δ71Ga. Li from 1840 to 4070 ppm; the abstract wrongly assigns this range to gallium. | Zhang et al. (2025), Gallium isotope variation in the Anning carbonate-hosted clay-type l… |
| 1.38 ± 0.07 ‰ | 1.26 / 1.48 ‰ | 18 | lithium-bearing claystone, drill core ZK406 Mean and standard deviation of 18 samples, Table 2. Positive correlation between gallium content and δ71Ga. | Zhang et al. (2025), Gallium isotope variation in the Anning carbonate-hosted clay-type l… |
| 1.13 ± 0.05 ‰ | 1.04 / 1.22 ‰ | 15 | lithium-bearing claystone, drill core ZK408 Mean and standard deviation of 15 samples, Table 3. No clear correlation between gallium content and δ71Ga. | Zhang et al. (2025), Gallium isotope variation in the Anning carbonate-hosted clay-type l… |
| 1.34 ± 0.12 ‰ | 1.22 / 1.48 ‰ | 4 | Carboniferous carbonate basement (dolomitic limestone, argillaceous dolomite) Mean and standard deviation of 4 samples (ZK406-H38 and ZK408-H23, H25, H29), Tables 2 and 3; the ZK401 limestone was not measured. Gallium from 0.6 to 7.5 ppm. | Zhang et al. (2025), Gallium isotope variation in the Anning carbonate-hosted clay-type l… |
Deposits of the same type
- Datangpo-type manganese (Gaolou, Minle, Zhenxing) China
- Deep lithium-bearing brines of the Jiangling Basin China
- Lithium-rich salt lakes of the Qaidam Basin (Dongtai, Xitai, Yiliping, Qarhan) China
- Dezong Mahai (Balun Mahai basin clay-type lithium) China
- Kinta Valley Malaisie
- Dunde China
- Huoshaoyun China
- Zankan China
Cite this page
IsoFind Atlas (2026). Anning (carbonate-hosted clay-type lithium), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/anning-lithium-argileux-sur-carbonates/ (accessed 2026-10-13).
@misc{isofind2026anningcarbonatehostedclaytype,
title = {Anning (carbonate-hosted clay-type lithium), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/anning-lithium-argileux-sur-carbonates/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13