Investigation of Devonian unconformity surface using high resolution legacy seismic profiles, NE Alberta, Canada
Bibliographic record
Abstract
The Devonian Grosmont Formation in northeastern Alberta, Canada is the world’s largest accumulation of heavy oil in carbonate rock with estimated bitumen in place of 64.5×109 m3. At the study location the eroded and buried surface of the Grosmont refers as the Devonian unconformity. This unconformity is a key to the development of the Grosmont resource because the resource abuts the unconformity. Using legacy seismic data and available well log information we were able to define the Devonian unconformity as a mature karst surface within observable features such as dolines, karst valleys, karst plain, a Poljie and a ridge. The Dolines and karst valleys and other such dissolution features have the potential to erode the bitumen reservoir of the upper Grosmont members. Mapping and avoiding areas such as the dolines and karst valley are highly important for oil prospectors to increase certainty of reservoir presence.
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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 | 0.002 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".