Characterization of three mineralization styles of the Revenue Au occurrence, Dawson Range, Yukon Territory, Canada : implications for a large-scale, intrusion related system
Bibliographic record
Abstract
The Revenue Au occurrence, located in Dawson Range, Yukon, Canada is a complex magmatic-hydrothermal system comprised of at least three styles of mineralization with distinct mineral assemblages and textures, though the paragenic relationship between styles is poorly understood.This integrated field and microanalytical study aims to characterize the styles of mineralization using petrography, mineral chemical analysis, and thermometric methods.Methods applied include SEM-BSE imaging, EMPA analysis of the major and minor chemical compositions of sulfides and sulfarsenides, and LA-ICP-MS analysis of trace elements in major sulfides.The data show that in the Blue Sky Zone of the Revenue granite host rock, style 1 mineralization is divided into an earlier, porphyrylike mineralization stage (Cu-Au) which is later overprinted by a later, epithermal-like (Cu-Ag-Au-Mo) mineralization stage.The breccia-hosted and W-Sn enriched style 2 mineralization (Cu-Au-Mo-W) cross-cuts the early style 1 mineralization, and both early style 1 and style 2 mineralization are cross-cut by diatreme-hosted style 3 mineralization.Additionally, regional quartz-feldspar porphyry dykes are commonly associated with Au mineralization in the Dawson Range.This study shows that at the Revenue location there is evidence that these dykes formed pre-to syn-mineralization with respect to late style 1 and style 2 mineralization, suggesting their involvement in the formation of Au mineralization on site.
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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 | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".