Progress report of EXTECH-IV seismic investigations in the Athabasca Basin, Saskatchewan-Alberta
Bibliographic record
Abstract
EXTECH-IV is a multidisciplinary study designed to improve the geoscience framework and develop exploration technology for unconformity-type uranium deposits of the Athabasca Basin. A multi-element seismic reflection program was conducted in the vicinity of the McArthur River uranium mining camp to test this technology for imaging the subsurface geometry of the ore deposits and the geology that hosts them. The seismic program consisted of 2-D reflection profiling (39 km of regional and 8 km of high resolution), a limited 3-D high-resolution survey, and vertical seismic profiling. Results from preliminary processing of the high-resolution 2-D seismic and vertical seismic profiling data show: 1) laterally continuous reflectivity regionally associated with the basement unconformity beneath the basin-fill sediments; 2) local reflectivity within individual units of the Manitou Falls Formation that is generally comparable to reflectivity of the boundaries between the formation members; and 3) local strong reflectivity associated with an abrupt increase in density that occurs within the Manitou Falls b member.
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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 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".