Published 1974
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Heterogeneities in the solar nebula
Description
Oxygen isotopic compositions of the high-temperature phases in carbonaceous chondrites define a mixing line with an 16O rich component and show little superimposed chemical isotope fractionation. Within a single inclusion in Allende, variations of delta 18O and delta 17O of 39 percent are found. The ordinary chondrites are slightly displaced from the terrestrial fractionation trend, implying that at least 0.2 percent of the oxygen in terrestrial rocks was derived from the 16O rich component. (STAR)
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Additional details
Publishing Information
- Imprint Pagination
- 14 p.
- Report number
- N--75-14675
Conference
- Title
- Soviet-American conference on the cosmochemistry of the moon and planets.
- Dates
- 4 Jun 1974.
- Place
- Moscow, USSR.
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 7231904
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHONDRITES; COSMOCHEMISTRY; EARTH PLANET; ISOTOPE RATIO; MOON; OXYGEN; ROCKS; SOLAR NEBULA; SOLAR SYSTEM EVOLUTION; VARIATIONS
- Descriptors DEC
- CHEMISTRY; ELEMENTS; METEORITES; NEBULAE; NONMETALS; PLANETS; SATELLITES; STONE METEORITES
Optional Information
- Secondary number(s)
- NASA-CR--141243.