Mahony and Tunago, Adjoining but Contrasted Karst Plateaus in the NT, Canada
Bibliographic record
Abstract
West of Great Bear Lake (Lat. 65-66O N; 157 m asl) Canadian Shield rocks are overlain by bedded dolomites (Ordovician) forming a glaciated plateau dipping gently west. A spillway divides it into (i) 'Mahony Dome' (south side, ~1000 km2, ≤460 m asl) and (ii) 'Tunago Dome' (north, ~750 km2, ≤360 m asl). Both drain karstically, chiefly to springs in the spillway. MAT range is -7o to -10oC, precipitation 200-350 mm. Permafrost is widespread to continuous except beneath lakes. Mahony Dome is a plain, with droughty muskeg at the centre (the world's most extensive ‘alvar'?), draining to sinkholes around the perimeter. Larger, glacier-scoured, depressions are/were occupied by karst lakes displaying a progression from (i) perennial lakes, with seasonal overflow; (ii) perennial, no overflow; (iii) seasonally shrinking lakes; (iv) fully drained, with sinkholes: This is likely correlated with the groundwater hydraulic gradients. A small sector of Tunago Dome generally above ~325 m asl is similar, but terrain below it is dissected into tabular blocks (very large clints) with muskeg swamps between them. Deep hydraulic depressions scoured at upstream corners of clints or at narrowings in interclint corridors now function as the local sinkholes. This tabular terrain is the product of sub-glacial floods tearing up a pre-existing shallow karst pavement, a type of 'scablands' noted elsewhere in north-ern Canada, but not at this scale; the technical presence of permafrost does not inhibit modern karstic drainage here, in contrast to the situation in the centre of Mahony Dome.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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) | 0.000 | 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 teacher head, 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".