Using basalt-hosted xenoliths as probes of the composition, structure and rheology of the sub-Cordilleran lithosphere in British Columbia
Bibliographic record
Abstract
This study seeks to illuminate the chemistry, structure, and rheology of the crustal and mantle lithosphere beneath the Canadian Cordillera using crustal and mantle xenoliths entrained in Quaternary to early Paleogene mafic volcanics. Most of the xenolith-bearing units belong to the Chilcotin Group basalts in southern British Columbia and fall within the Quesnel and Stikine accreted terranes. The sampling locations of Summit Lake north of Prince George, Lightning Peak in the Okanagan region and Mt. Timothy east of Lac la Hache were selected for the diversity of entrained xenoliths. Ultramafic mantle xenoliths include multiple types of peridotite, with lherzolite the most abundant in all locations. Crustal xenoliths include gabbro, granitoid, granulite and quartzite. Pressure and depths of equilibration for the samples will be determined by microprobe analyses of various minerals in the xenoliths. This will be the first step toward creating a comprehensive petrological cross section of the southern Cordilleran lithosphere.
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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 | 0.002 |
| Science and technology studies | 0.002 | 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".