Published December 1976 | Version v1
Journal article

Oxygen isotopic composition of minerals in the Kenna ureilite

  • 1. Chicago Univ., Ill. (USA). Enrico Fermi Inst.

Description

The delta18O and delta17O values of olivine from Kenna are 7.6 and 3.0 parts per thousand respectively, relative to SMOW. These values are typical of ureilites which form a unique group on a delta17O- delta18O graph. The ureilites are related to, but not directly derived from, the anhydrous phases of C2 and C3 meteorites. The 18O/16O fractionation between pyroxene and olivine is 0.60, indicating a temperature of last equilibration of 1000 +- 1000C. (author)

Additional details

Identifiers

Publishing Information

Journal Title
Geochimica et Cosmochimica Acta
Journal Volume
40
Journal Issue
12
Series
Geochim. Cosmochim. Acta.
Journal Page Range
1475-1476
ISSN
0016-7037

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
8296013
Subject category
S58: GEOSCIENCES;
Descriptors DEI
ACHONDRITES; ISOTOPE RATIO; MINERALS; OXYGEN; OXYGEN 16; OXYGEN 17; OXYGEN 18; SILICATES
Descriptors DEC
ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; ISOTOPES; LIGHT NUCLEI; METEORITES; NONMETALS; NUCLEI; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; SILICON COMPOUNDS; STABLE ISOTOPES; STONE METEORITES

Optional Information

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