Toward a revised stratigraphic and structural framework for the Obonga Lake greenstone belt, Ontario
Bibliographic record
Abstract
Located on-strike between the Sturgeon-Savant belt of the western Wabigoon Subprovince and Onaman-Tashota belt to the east, the Obonga greenstone belt holds keys to stratigraphic and structural correlation across the central Wabigoon Subprovince. Postulated unconformable relationships between Mesoarchean basement and Neoarchean volcanic cover sequences were found to be tectonic, although geochemistry of volcanic rocks indicates continental contamination. Volcanic and intrusive rocks of the southern assemblage (2734-2726 Ma) are bordered to the north by a south-facing northern assemblage of sedimentary, mafic and felsic volcanic rocks with younger ages, negating simple synformal geometry. Significant east-trending shear zones that bound and occur within the belt range from ductile phyllonite and mylonite zones with dip-slip and strike-slip geometry, to cataclastic dip-slip zones. The Wig Creek conglomerate, containing volcanic and granitic clasts, may be a Timiskaming-type deposit.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.004 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.002 | 0.001 |
| 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".