Mapping the Belly River Group in Alberta
Bibliographic record
Abstract
The Belly River Group represents a westward-thickening, third-order clastic sequence deposited within the Western Canadian Foreland Basin during the Campanian. In southern and southcentral Alberta, the Belly River Group has been divided into the Foremost, Oldman, and Dinosaur Park formations. The Dinosaur Park Formation thins from west to east and is separated from the underlying Oldman Formation by a regional discontinuity that can be mapped over much of central and southern Alberta (Eberth and Hamblin, 1993; Hamblin, 1997a). The Oldman Formation can be subdivided into an upper, fine-grained “silt unit” and a lower sandstone unit (Hamblin, 1997b). The sandstone unit overlies the Taber coal zone, which situated at the top of the Foremost Formation, where present. In eastern Alberta, there is a complex interfingering between nonmarine and marginal marine rocks of the lower Belly River Group and fine-grained marine rocks of the Lea Park Formation.
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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 | 0.003 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 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".