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GEOREF RECORD
The Nabarlek uranium deposit, Northern Territory, Australia; some petrologic and geochemical constraints on genesis
G. R. Ewers, John Ferguson and T. H. Donnelly
The Nabarlek uranium deposit, Northern Territory, Australia; some petrologic and geochemical constraints on genesis
Economic Geology and the Bulletin of the Society of Economic Geologists (August 1983) 78 (5): 823-837
The Nabarlek uranium deposit, Northern Territory, Australia; some petrologic and geochemical constraints on genesis
Economic Geology and the Bulletin of the Society of Economic Geologists (August 1983) 78 (5): 823-837
Index Terms/Descriptors
- Australasia
- Australia
- chlorite
- chlorite group
- economic geology
- geochemical controls
- hydrothermal alteration
- hydrothermal processes
- isotopes
- metal ores
- metasomatism
- migration
- mineral deposits, genesis
- Northern Territory Australia
- ore minerals
- oxides
- Precambrian
- Proterozoic
- sericitization
- shear zones
- sheet silicates
- silicates
- stable isotopes
- upper Precambrian
- uraninite
- uranium ores
- weathering
- Alligator Rivers region
- Nabarlek
Latitude & Longitude
Abstract
Deposit is confined to a shear zone in contorted and metasomatized early Proterozoic schists. Occurs near an unconformity. Massive chlorite-sericite-hematite rocks. Uraninite intergrown with chlorite. Sericitization, redox reactions. Th ratios suggest transport as a uranyl complex. Isotopic data on minor carbonate suggest organic material was originally associated with the mineralization and indicate that these carbonates have evolved from the interaction of hydrothermal fluids with this material. Erosion has exposed the deposit to the effects of weathering.--Modified journal abstract.
ISSN: 0361-0128
EISSN: 1554-0774
Coden: ECGLAL
Serial Title: Economic Geology and the Bulletin of the Society of Economic Geologists
Serial Volume: 78
Serial Issue: 5
Title: The Nabarlek uranium deposit, Northern Territory, Australia; some petrologic and geochemical constraints on genesis
Affiliation: Bur. Miner. Resour.,
Canberra,
Australia
Pages: 823-837
Published: 198308
Text Language: English
Publisher: Economic Geology Publishing Company,
Lancaster, PA,
United States
References: 43
Accession Number: 1983-049921
Categories: Economic geology, geology of ore deposits
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
S12°30'00" - S12°15'00", E133°00'00" - E133°30'00"
Secondary Affiliation: Baas Becking Lab.,
AUS,
Australia
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1983