The Wollaston Supergroup, stratigraphy and metallogeny of a Paleoproterozoic Wilson cycle in the Trans-Hudson Orogen, Saskatchewan
Bibliographic record
Abstract
The Wollaston Supergroup (revised) overlies Archean gneiss along the eastern margin of the Hearne Province. Four unconformity-bounded Paleoproterozoic siliciclastic metasedimentary sequences include minor carbonate and volcanic rocks. The ca. 2075 Ma volcanic rocks and detrital zircon grains greater than 2.37 Ga restricted to the east are interpreted as rift and passive-margin deposits, respectively. Coarsening- and fining-upward foreland basin successions (detrital zircons >1.88 Ga) underlie all of the Wollaston Domain. During the 1.86 - 1.78 Ga Trans-Hudson Orogeny, four episodes of ductile deformation generated upper-amphibolite- to granulite-facies metamorphism, except for an easternmost greenschist- to lower-amphibolite zone. Zinc-lead prospects are mainly in the middle two groups, especially at George Lake. 'Redbed'-type copper occurrences e.g. Janice Lake prospect, are mainly in the youngest group. Widespread late Trans-Hudson Orogen pegmatite and granitoid intrusions contain minor uranium. Many unconformity-associated uranium deposits of the Athabasca Basin are associated with the basal graphitic metapelite unit of the foreland basin succession.
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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 | 0.001 | 0.001 |
| 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) | 0.003 | 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".