Shallow P and S velocity structure, Red Deer, Alberta
Bibliographic record
Abstract
A multioffset vertical seismic profile was acquired at a site near Red Deer, Alberta, using a compressional minvibe source. A five-level, three-component VSP tool with a 15 m receiver spacing was used for data acquisition over a vertical aperture from surface to 300 m depth. First arrivals of offset data revealed the presence of turning rays for both Pwaves and S-waves. Traveltimes and incident angles were inverted to yield a five-layer isotropic P-wave velocity model. P-wave velocity gradients of 10 s -1 and 5 s -1 were derived for the top two layers, respectively, and weak anisotropy (e = 0.02 and δ = 0.02) was deduced for the two shallowest layers. Direct S-waves were also recorded in the walk-away data. First-arrival traveltime and incident angle analysis yielded SV-wave velocity gradients up to18 s -1 .
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| 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".