Geotechnical test results at a prehistoric landslide site in Breckenridge, southwestern Quebec
Bibliographic record
Abstract
Geotechnical field testing was conducted in and around a landslide occurred about 1020 cal BP in Breckenridge, southwestern Quebec. The objective of the study is to investigate the magnitude of an earthquake previously hypothesized to have triggered this and other landslides in the region. The purpose of this Open File is to document the data obtained from the Breckenridge landslide site. The landslide is about 980 m long and 370 m wide. Four cone penetration tests (CPT) were conducted to depths ranging from 37 m to 55 m. Two CPTs were inside the landslide scar and two outside. Field vane shear tests (VST) were carried out at three CPT locations. The CPT cone bearing factor Nkt was calibrated to be 11.5. The soil undrained shear strength (Su) was found to have a correlation of Su = 15 + 2.66 H (kPa), where H is depth in meters from the original ground surface elevation at the head scarp. All the CPT data consistently show the same trend for the undisturbed materials. The slip surface was found to be at about 15 m depth from the original ground surface.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| 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".