Zinc isotope anomalies. [In Allende meteorite]

Journal Article · Sun Jul 01 00:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185772· OSTI ID:6595786

Volkening, J; Papanastassiou, D A ^[1]

---

1. California Institute of Technology, Pasadena (USA)

The Zn isotope composition in refractory-element-rich inclusions of the Allende meteorite are determined. Typical inclusions contain normal Zn. A unique inclusion of the Allende meteorite shows an excess for Zn-66 of 16.7 + or - 3.7 eu (1 eu = 0.01 percent) and a deficit for Zn-70 of 21 + or - 13 eu. These results indicate the preservation of exotic components even for volatile elements in this inclusion. The observed excess Zn-66 correlates with excesses for the neutron-rich isotopes of Ca-48, Ti-50, Cr-54, and Fe-58 in the same inclusion. 32 refs.

• OSTI ID: 6595786
• Journal Information: Astrophysical Journal; (USA), Vol. 358; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHONDRITES
ISOTOPE RATIO
CHEMICAL COMPOSITION
COSMOCHEMISTRY
INTERSTELLAR SPACE
SOLAR SYSTEM
THERMONUCLEAR REACTIONS
ZINC ISOTOPES
CHEMISTRY
ISOTOPES
METEORITES
NUCLEAR REACTIONS
NUCLEOSYNTHESIS
SPACE
STONE METEORITES
SYNTHESIS
640107* - Astrophysics & Cosmology- Planetary Phenomena