Nine samples of Cretaceous Toolebuc Formation carbonaceous shales and two coquinite samples were analyzed using high-energy resolution fluorescence detection x-ray absorption spectroscopy. The dataset characterizes uranium oxidation state and distribution, with total organic carbon content ranging from 0.3 to 13.4 wt%. The research was presented at the 2023 Goldschmidt Conference and published by Geoscience Australia.
Use Cases
- Modeling uranium adsorption and reduction processes based on U(VI) and U(IV) proportions
- Correlating uranium speciation with total organic carbon content (5.9 to 13.4 wt%)
- Analyzing nanoscale uranium associations with organic matter or sulphide minerals
- Comparing uranium redox states between anoxic shales and dysoxic coquinite environments
Strengths
- Uses high-energy resolution fluorescence detection (HERFD) x-ray absorption spectroscopy and NanoSIMS for detailed speciation
- Includes samples with quantified total organic carbon content ranging from 0.3 to 13.4 wt%
- Reports specific proportions of U(VI) (~20 to 30%) within the shale samples
Limitations
- Row count is unknown, which may limit suitability assessment
- Column-level documentation is absent; field semantics must be inferred after download
- Data may reflect geographic bias inherent to the Eromanga Basin, Australia
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- High-energy resolution fluorescence detection (HERFD) x-ray absorption spectroscopy and nanoscale secondary ion mass spectrometry (NanoSIMS) on sediment samples.
- Time Range
- Cretaceous period
- Freshness
- Last updated 2026-03-25 19:24:55.335551; freshness should be verified
- Geography
- Toolebuc Formation, Eromanga Basin, Australia