Topographic influences on the sedimentology of the Read and Manitou Falls formations, eastern Athabasca Basin, Saskatchewan
Bibliographic record
Abstract
In the eastern Athabasca Basin, Read and Manitou Falls formations unconformably overlie high-grade Wollaston and Mudjatik gneiss domains. Stratal architecture and paleocurrents of basal strata at the SueCpit at McClean Lake and the Deilmann pit at Key Lake indicate that initial deposition was strongly influenced by basement paleotopography, with early deposits confined between distinct valley walls. Stratigraphically younger units experienced less direct basement influence on river patterns. They are likely to have formed by deposition on amalgamated braidplains, essentially at or near grade, filling a broad, nearly flat accommodation space. Drill logs at McArthur River and Cigar Lake suggest that paleotopography there also influenced the basal lithofacies, as cobble and large pebble conglomerate accumulated in rivers that ran parallel to basin-margin faults. Some uranium ore bodies occupy low-relief, mature topographic depressions along pre-existing fault trends; others overlie basement ridges. Systematic paleocurrent measurements in inclined exploratory cores may aid selection of exploration targets, especially where paleocurrents deviate from regional trends.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".