Albertus J.B. Smith

Refining the average µ182W and µ142Nd compositions of the Archean to Proterozoic upper crust

The chemical composition of siliciclastic rocks provided key insights into the chemical composition of the upper continental crust and was suggested to record the onset of modern-style plate tectonics by ∼3.0 Ga. Recent studies aiming to establish the crustal µ 182 W and µ 142 Nd...