Correlated oxygen and magnesium isotope anomalies in Allende inclusions, I: Oxygen

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Geophys. Res. Lett.; (United States)

DOI:https://doi.org/10.1029/GL004i007p00295· OSTI ID:7300276

Clayton, R N; Mayeda, T K

Two Ca-Al-rich inclusions from the Allende meteorite have been found to have undergone large mass-fractionation of oxygen isotopes subsequent to incorporation of the nucleosynthetic /sup 16/O-anomaly found in other Allende inclusions. The magnitude of the oxygen isotope fractionations is in constant ratio to the magnesium isotope fractionations found in the same inclusions by Wasserburg, Lee and Papanastassiou. The observations support earlier theories of the addition of supernova ejecta into the solar nebula just prior to collapse and condensation.

• Research Organization: Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637
• OSTI ID: 7300276
• Journal Information: Geophys. Res. Lett.; (United States), Journal Name: Geophys. Res. Lett.; (United States) Vol. 4:7; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
CHONDRITES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FRACTIONATION
ISOTOPE RATIO
ISOTOPES
LIGHT NUCLEI
METEORITES
NUCLEI
OXYGEN 16
OXYGEN 17
OXYGEN 18
OXYGEN ISOTOPES
SEPARATION PROCESSES
STABLE ISOTOPES
STONE METEORITES