Abundances and Isotopic Compositions of Volatile H, N, C in Unequilibrated Enstatite Chondrites and the Volatile Inventories of the Terrestrial Planets

New H, N, and C data of five unequilibrated enstatite chondrites (ECs) supports previous conclusions that ECs may have contributed to the volatile abundances in the solid Earth. ECs remain the best match for the material that accreted to form Earth.