Magnetic fabrics and boundary structure at the Quetico - Shebandowan subprovince boundary, near Kashabowie, NW Ontario / by Robert Nicholas Spark
Bibliographic record
Abstract
The Quetico metasedimentary subprovince and the volcanic-plutonic \nShebandowan belt to the south meet along an east-west \nsteeply dipping boundary that is believed to have been affected \nby dextral transpressional deformation. It is also parallel to a \nsteep metamorphic gradient from greenschist facies rocks to the \nnorth. \nMacroscopic petrofabrlcs are difficult to observe along \nthe belt to the west of Thunder Bay but magnetic susceptibility \nfabrics (low-field) are quite consistent. These define a gently \nplunging extenslonal fabric parallel to the belt boundary. \nWithin the Kashabowle area, general field observations of \nsubhorizontal stretching (and intersection) lineations, and \ncleavage directions are in agreement with magnetic susceptibility \naxis directions. Mineral separation reveals that all samples \nhave multiple sources of magnetic susceptibility, dominated by \nmetamorphic phyllosilicates. Consequently it is not possible to \nsimply quantitatively relate the magnetic fabrics to strain \nmagnitudes although the magnetic fabrics accurately monitor \nsignificant kinematic directions. Analyses of strain of \nlow-grade detrital quartz grains, magnetic fabrics and general \nfield observations recognize flattened oblate fabrics. Moreover \noblique, subhorizontal lineations favour a transpresslve \nkinematic model with compression normal to the belt boundary. \nThe obliquity between mineral and magnetic lineations seem to \nindicate dextral transpresslve deformation.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.126 | 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".