Bibliographic record
Abstract
Pelitic metasediments immediately southwest of Yale, British Columbia contain mineral assemblages characteristic of staurolite through sillimanite zones of the Barrovian facies series. Isograds are steeply dipping. Two phases of deformation are recognized with metamorphism being syn- to post-tectonic. Pseudomorphs after andalusite indicate that contact metamorphism preceded regional upgrading of the pelites. Microprobe analyses of major silicate phases in the pelites are combined with linear regression techniques in discussing possible kyanite- and sillimanite-forming reactions. A zone some 3 kilometers wide contains the assemblage staurolite-kyanite-garnet-biotite-muscovite-quartz which is univariant in AFM projection. Regression analysis of the staurolite-kyanite assemblage reveals the sensitivity of regression methods to error limits associated with the different minerals present. Precision of the analyses was not high enough for regression analysis to differentiate between stable, divariant equilibrium and a buffered, univariant reaction relation for this assemblage. Pelitic and calc-silicate assemblages from the metasediments restrict pressure-temperature conditions during regional metamorphism to 5½-8 kilobars and 550-700°C. It is suggested that deformation, emplacement of granitic intrusions, and regional metamorphism are all part of the Cretaceous orogeny which formed structures of the Cascades Mountains.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 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 teacher head, 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".