Rewriting the Lithium Playbook: Archean roots, greenstone belts, and giant pegmatites
Smithies, R.H. et al. (2025). Giant lithium-rich pegmatites in Archean cratons form by remelting refertilised roots of greenstone belts. Communications Earth & Environment, 6, 630. https://doi.org/10.1038/s43247-025-02622-5.


- Lithium-rich pegmatites formed from crustal sources refertilised by hydrous, mantle-derived sanukitoid magmas beneath greenstone belts.
- The parental leucogranites are metaluminous, juvenile, and evolved from igneous—not sedimentary—sources, challenging traditional Li-pegmatite models.
- Major crustal-scale faults and greenstone-granite contacts enabled upward melt transfer and Li-enrichment at craton margins.
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