Summary of the Statherian-Calymmian paleogeography of northwestern Laurentia
Bibliographic record
Abstract
The ca. 1.75 to 1.27 Ga Hornby Bay intracontinental basin, in northwestern Canada, includes the Big Bear, Mountain Lake, and Dismal Lakes groups. This paper investigates the original depositional environments, paleogeography, and architecture of these groups and how they correlate in time and space. The Big Bear group comprises mainly immature clastic rocks deposited by high-energy rivers, the overlying Mountain Lake group was deposited by westerly flowing rivers over a much broader region, and, following tectonic uplift and erosion, basal clastic rocks of the Dismal Lakes Group were deposited in fluvial and then shallow-marine to paralic environments. Detrital zircon geochronology of sandstone units from the Mountain Lake group of Hornby Bay Basin and Wernecke Supergroup in the Wernecke Mountains supports their correlation and the conclusion that they represent the terrestrial and marine components, respectively, of a west-facing, passive-margin clastic wedge that evolved to a stable carbonate platform. These relationships imply further westward extension of a continental drainage system.
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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".