GEOCHEMISTRY OF URANIFEROUS BITUMEN IN THE SOUTHWEST ATHABASCA BASIN, SASKATCHEWAN, CANADA
Bibliographic record
Abstract
The sediment-hosted unconformity-type Southwest Athabasca uranium mineralization in northern Saskatchewan, Canada, contains uraniferous bitumen, as observed elsewhere in the Athabasca basin. Uraninite is present either as micron-sized grains dispersed in bitumen (uraniferous bitumen) or as larger grains situated in the pore space between bitumen globules. The spatial and textural relationships between uraninite and bitumen suggest that they were co-precipitated. LA-ICP-MS U/Pb dating of uraniferous bitumen yielded an age of 1575 ± 53 Ma, similar to that of other unconformity-type uranium mineralization in the Athabasca basin, indicating that the bitumen was formed early in the history of the basin. Nitrogen, carbon, and sulfur isotope analyses of uraniferous bitumen indicate that its source material was probably kerogen produced by cyanobacteria in a clastic environment.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".