ArticleProceedings of the National Academy of Sciences of the United States of America2026
Oxidized Hadean magmas and Archean mobile-lid tectonics revealed by Jack Hills zircon.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Replicating lipid micelles: a feasible precursor to the origin of life and the earliest appearance of genomes.Human genomics · 2026Review
- Links between the Archean hydrosphere and Earth's interior.Nature communications · 2026Article
- Oxidized Hadean magmas and Archean mobile-lid tectonics revealed by Jack Hills zircon.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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7 authors.
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Abstract
Mobile-lid tectonics is a first-order feature characterizing the modern Earth, yet its origins remain enigmatic due to a scarcity of ancient terrestrial materials. Detrital zircons provide the most complete archive of Earth's early crust and preserve the only record extending beyond ~4.0 Ga. Here, we combine U XANES oxybarometry with U-Pb and trace element analysis to investigate the igneous cores and metamorphic rims of Hadean-Archean zircon from the Jack Hills, Australia. Igneous cores record consistent, moderately oxidized magma conditions (FMQ-1 to +1), challenging notions of a highly reduced early Earth and supporting models that evoke efficient mantle convection throughout the Hadean. In contrast, redox states and trace element contents show that metamorphic rims record i) high-ƒO
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