The Non-carbonaceous–Carbonaceous Meteorite Dichotomy

• DOI: 10.1007/s11214-020-00675-w
• Publication Date: 2020-05-12T09:04:03Z
• Authors: T. Kleine; G. Budde; C. Burkhardt; T. S. Kruijer; E. A. Worsham; A. Morbidelli; F. Nimmo
• Keywords: Jupiter (rocket family); Asteroid belt

Abstract The isotopic dichotomy between non-carbonaceous (NC) and carbonaceous (CC) meteorites indicates that meteorite parent bodies derive from two genetically distinct reservoirs, which presumably were located inside outside the orbit of Jupiter remained isolated each other for first few million years solar system. Here we review discovery NC–CC its implications understanding early history system, including formation Jupiter, dynamics terrestrial planet formation, origin nature Earth’s building blocks. difference NC CC reservoirs is probably inherited system’s parental molecular cloud has been maintained through rapid prevented significant exchange material orbit. growth and/or migration resulted in inward scattering bodies, accounts co-occurrence present-day asteroid belt delivery volatile-rich to growing planets. primitive mantle, at least siderophile elements like Mo, a mixed composition, indicating Earth accreted during final stages growth, perhaps Moon-forming giant impactor. late-stage accretion sufficient account entire budget water highly volatile species.