Comparing depositional environments and porous zones in the 400 million-year-old sabkhas of subsurface Alberta
Bibliographic record
Abstract
Using subsurface core and well logs, a comparison of sedimentary deposits in evaporite-containing formations of the Devonian hypersaline seas of Alberta was done. Thin sections from the Nisku Formation were examined using a petrographic microscope to determine how and when brine and hydrocarbons moved through two porous zones, identified by well logs from the same area. These two zones within core and thin sections were compared with other zones from which only well logs were available. Through measurements of the porosity, permeability, and timing of diagenesis from petrography, it is determined that areas of high neutron and density log responses correlate with cemented zones within the core. This research has a direct impact on the understanding of how evaporitic facies can cause different responses within well logs. Our understanding of how well logs, accompanied by core and thin section analysis, can give insight into the movement of fluids and gases in subsurface Alberta is also aided. * Indicates faculty mentor.
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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 | 0.003 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 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".