Ages of major uranium mineralization and lead loss in the Key Lake uranium deposit, northern Saskatchewan, Canada
Journal Article
·
· Econ. Geol.; (United States)
Uranium and lead isotope ratios were measured on nine ore samples and four mineral separates from the Deilmann orebody of the Key Lake uranium-nickel deposit. The time of primary mineralization is the oldest reported for Proterozoic unconformityrelated uranium deposits in the Athabasca basin. Data obtained in this study show that lead loss (or uranium gain) has occurred in highgrade rocks and that lead gain (or uranium loss) has occurred in low-grade rocks. Lead loss rather than uranium gain in high-grade ore is suggested by the petrologic work of Cumming and Rimsaite and the presence of excess radiogenic lead in the overlying sandstone documented by Curtis and Gancarz. Some of the results obtained in this study provide evidence of preferential movement of /sup 238/U intermediate daughters out of uranium minerals and into the matrix.
- Research Organization:
- Geosciences Department, Pennsylvania State University, University Park, Pennsylvania
- OSTI ID:
- 5056035
- Journal Information:
- Econ. Geol.; (United States), Journal Name: Econ. Geol.; (United States) Vol. 79:6; ISSN ECGLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
050100* -- Nuclear Fuels-- Reserves
Exploration
& Mining
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
AGE ESTIMATION
ALPHA DECAY RADIOISOTOPES
CALCULATION METHODS
CANADA
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EVEN-EVEN NUCLEI
GEOLOGIC AGES
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LOSSES
MEASURING METHODS
METALS
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MINERALIZATION
NICKEL ORES
NORTH AMERICA
NUCLEI
ORES
OROGENESIS
PETROLOGY
RADIOISOTOPES
RESOURCES
ROCKS
SANDSTONES
SASKATCHEWAN
SEDIMENTARY ROCKS
URANIUM
URANIUM 238
URANIUM DEPOSITS
URANIUM ISOTOPES
URANIUM ORES
YEARS LIVING RADIOISOTOPES
Exploration
& Mining
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
AGE ESTIMATION
ALPHA DECAY RADIOISOTOPES
CALCULATION METHODS
CANADA
DAUGHTER PRODUCTS
ELEMENTS
EVEN-EVEN NUCLEI
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGY
HEAVY NUCLEI
ISOTOPES
LEAD
LEAD ISOTOPES
LOSSES
MEASURING METHODS
METALS
MIGRATION
MINERAL RESOURCES
MINERALIZATION
NICKEL ORES
NORTH AMERICA
NUCLEI
ORES
OROGENESIS
PETROLOGY
RADIOISOTOPES
RESOURCES
ROCKS
SANDSTONES
SASKATCHEWAN
SEDIMENTARY ROCKS
URANIUM
URANIUM 238
URANIUM DEPOSITS
URANIUM ISOTOPES
URANIUM ORES
YEARS LIVING RADIOISOTOPES