Conodont Sequence Biostratigraphy of the Lower Triassic Montney Formation
Bibliographic record
Abstract
Abstract Conodonts have proven to be excellent index fossils to study the subsurface Montney Formation given their small size and regular occurrence in most marine facies. Twenty uppermost Permian to Lower Triassic conodont biozones are summarized and the sequence biostratigraphic framework provides a template demonstrating the correlation potential of the Montney Formation in the Peace River Basin from west-central Alberta to east-central British Columbia. The Montney Formation, which includes three 3rd order depositional sequences that are also recognized globally, naturally subdivides into Lower (Griesbachian-Dienerian; Induan), Middle (Smithian; lower Olenekian), and Upper Montney (Spathian; upper Olenekian). The Early Triassic is 4.8 m.y. in duration, but up to 200 k.y. of the latest Permian are included within the basal Montney. The ages of biozones and sequences are interpolated, but there is still considerable uncertainty in the ages for all levels, but for the base-Induan and base-Anisian.
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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 | 0.000 | 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) | 0.004 | 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".