Preliminary report on the geology and controlling parameters of the Goldcorp Inc. High Grade zone, Red Lake mine, Ontario
Bibliographic record
Abstract
The association of axial planar carbonate veins, high-grade ore zones, and an F 2 fold hinge deforming the basalt-ultramafic contact in the Goldcorp Inc. High Grade zone suggests a local geological control by an F 2 fold. The development of such an F 2 fold was potentially critical in forming the structures hosting the veins and in control- ling fluid circulation allowing formation of the carbonate extensional veins within the basalt and their subsequent Au-rich silicic replacement. The CO 2 -rich and auriferous silica-rich fluids were preferentially focused in a low-pressure F 2 hinge due to a combination of factors including competence contrast, tangential longitudinal strain associated with F 2 , and east-southeast-trending high-strain zones. The altered ultramafic rock acted as a less per- meable barrier controlling fluid migration along the folded contact, allowing supralithostatic fluid pressure to build up and inducing a ponding effect in the basalt underneath, to create wide, high-grade ore zones in low-pressure hinges. The Au-rich silicic replacement of the carbonate veins was potentially syn- to late-D 2 . Subsequent strain remobilized gold in late, extremely high-grade structures.
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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 | 0.001 |
| 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) | 0.006 | 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".