Carbon-13/carbon-12 isotope fractionation of organic matter associated with uranium ores induced by alpha irradiation
Journal Article
·
· Science; (United States)
Analyses of stable carbon isotopes from two sample suites from sandstone uranium (tabular) ores show interesting variations. Organic carbon associated with high-grade uranium ore is heavy (delta/sup 13/C = -16.9 to -19.6 per mil, where delta/sup 13/C = /sup 13/C//sup 12/C relative to the Pee Dee belemnite standard) relative to the adjacent lower-grade samples (-22.7 to -26.4 per mil). It is suggested that the heavy isotopic values for the ore samples are related to a radiation and chemical isotope effect that has occurred mainly because of an alpha-radiation dose of 10/sup 11/ rads.
- Research Organization:
- Geological Survey, Denver, CO
- OSTI ID:
- 6359235
- Journal Information:
- Science; (United States), Vol. 202:4366
- Country of Publication:
- United States
- Language:
- English
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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CARBON 13
ISOTOPE EFFECTS
ISOTOPE RATIO
URANIUM ORES
ALPHA PARTICLES
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CHEMICAL RADIATION EFFECTS
RADIATION DOSES
SANDSTONES
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EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
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050100* - Nuclear Fuels- Reserves
Exploration
& Mining
CARBON 13
ISOTOPE EFFECTS
ISOTOPE RATIO
URANIUM ORES
ALPHA PARTICLES
CARBON 12
CHEMICAL RADIATION EFFECTS
RADIATION DOSES
SANDSTONES
CARBON ISOTOPES
CHARGED PARTICLES
CHEMISTRY
DOSES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
ISOTOPES
LIGHT NUCLEI
NUCLEI
ORES
RADIATION CHEMISTRY
RADIATION EFFECTS
ROCKS
SEDIMENTARY ROCKS
STABLE ISOTOPES
050100* - Nuclear Fuels- Reserves
Exploration
& Mining