Amelin-Krot 2002 CAI Pb-Pb 4.5672 Gyr; oldest solar-system solids; calcium-aluminum inclusions in carbonaceous chondrites; absolute solar-age anchor.
Amelin-Krot 2002 CAI Pb-Pb 4.5672 Gyr; oldest solar-system solids; calcium-aluminum inclusions in carbonaceous chondrites; absolute solar-age anchor.