Oxidized Hadean magmas and Archean mobile-lid tectonics revealed by Jack Hills zircon

Proceedings of the National Academy of Sciences, Volume 123, Number 10, March 2026.
Significance Moving lid tectonics, the lateral movement and collision of tectonic plates, is unique to Earth. Yet it remains unclear when this fundamental process began. Using oxidation state and trace element analysis of ancient zircon crystals from the…