Nitrogen isotope evidence for Earth’s heterogeneous accretion of volatiles - Nature.com

How and when Earth acquired its major volatiles N-C-H-S remains unclear. Here the authors show that Earth may have acquired its major volatiles from both reduced and oxidized impactors before and during the Moon-forming giant impact.

Starting materials Starting materials included synthetic silicates and mixtures of metal Fe+Fe7N3±FeS±Si powder. The first three silicates (refer to as G-1, G-2, and G-3) had major element compositi… [+46309 chars]

full article...