Preliminary investigations of unconsolidated sediments overlying the Leech River fault zone, southern Vancouver Island, British Columbia
Bibliographic record
Abstract
The Leech River fault zone lies near the city of Victoria, British Columbia. Although this fault zone has been considered to be inactive for millions of years, two large paleo-earthquakes have been identified on its eastern extension, only 40 km from the city. Confirmation of an active fault in proximity to an urban centre or a part of critical infrastructure would fundamentally change the analysis of seismic hazard. To determine the occurrence of more recent faulting, younger sediments overlying the faulted bedrock were surveyed by high resolution Lidar topography, ground penetrating radar, electrical resistivity, and shallow seismic reflection lines. Targeted areas included surface scarps and transects crossing the bedrock structure in search of disturbed sediment that may be attributed to recent faulting. Preliminary results do not find conclusive evidence of active faulting in the youngest sediment dating from postglacial time, at least in the upper 5 to 10 m; however, the seismic reflection survey found deeper, faulted deposits dating from at least the last glaciation and warrant further investigation.
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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 | 0.002 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".