Karsting and Exposure of Winnipegosis Reefs in the Williston Basin of southeast Saskatchewan
Bibliographic record
Abstract
Several Devonian Winnipegosis Reefs on the western shelf margin of the Williston Basin show karsted surfaces in the upper part of the reef buildups. The surfaces were noted in core at Benson and Macoun Pools. Reef development was terminated when sea level dropped and prolonged exposure resulted in the development of an angular unconformity. The karsted surface exhibits extensive infill by anhydrite. The basinward continuation of the karst can be used as a time datum for correlation. The regional circulation and reef response to development was from a general northerly direction. Platform development was extensive and numerous reefs developed on this base. The karsted surface is a hydrodynamic seal and restricts flow from the regional aquifer to the final stage of reef growth. Pressure maintenance in Winnipegosis pools is a problem and the reefs require energy infusion in order to maintain production levels. The reefs are layered deposits with an abundance of muddy carbonate sediments. They are baffled by stromatoporoids and corals and accumulated a small percentage of calcareous algae. They were subsequently buried in halite following the termination of reef growth and the basin became evaporitic. The 9-9-6-8 W2M Total Home et al Benson example is the best example of karsting and temporary termination of reef growth. Reef development above the karsted surface highlights biological activity in a high energy environment.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.002 |
| 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".