Earth's chondritic Th/U: negligible fractionation during accretion, core formation, and crust - mantle differentiation

Scott A. Wipperfurth, Meng Guo, Ondřej Šrámek +1

Radioactive decay of potassium (K), thorium (Th), and uranium (U) power the Earth's engine, with variations in 232Th/238U recording planetary differentiation, atmospheric oxidation…