Revised geological map and stratigraphy of the Athabasca Group, Saskatchewan and Alberta
Bibliographic record
Abstract
Four unconformity-bounded quartzose fluvial sequences filled the Athabasca Basin between about 1760 Ma and 1500 Ma, each with distinct subbasin architecture, grain-size distribution, and paleocurrent directions. Maximum thickness of the Athabasca Group at any one place is about 1500 m, although much has been eroded and the aggregate stratotype thickness is 3800 m. Sequence 1 is Fair Point Formation (conglomeratic Lobstick and pebbly quartz arenite Beartooth members). Sequence 2 begins with conglomeratic Read Formation in the east and sandy Smart Formation in the west, overlain by Manitou Falls Formation (conglomeratic Bird, sandy Collins, and clay-intraclast-rich Dunlop members in the east and centre; sandy Warnes Member to the southeast and pebbly sandy Raibl Member to the northeast). Sequence 3 includes the Lazenby Lake Formation (conglomeratic Hodge, sandy-muddy Clampitt, pebbly Shiels, and sandy Larter members), and the Wolverine Point Formation (mudstone-rich Brule and sandy Claussen members). Sequence 4 comprises Locker Lake Formation (pebbly Snare, conglomeratic Brudell, and pebbly Marsin members), Otherside Formation (pebbly Archibald and sandy Birkbeck members), Douglas Formation quartz arenite and carbonaceous mudstone, and Carswell Formation stromatolite and oolite with minor basal siliciclastic interbeds.
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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 | 0.004 | 0.007 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.018 | 0.003 |
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".