Constraining Mineral Potential of the Alexander Terrane Near Porcher Island, Northwestern British Columbia
Bibliographic record
Abstract
The Paleozoic Alexander terrane in northern British Columbia and Alaska contains two island arc sequences, including, the late Proterozoic to Cambrian Wales Group and the early Ordovician to late Silurian Descon Formation.Both of these sequences are thought to represent volcanic arc assemblages composed of sedimentary, volcanic, and plutonic rocks and their metamorphic equivalents.Both the Wales and Descon have significant volcanic massive sulfide potential based on alteration patterns, prospects, showings, and favorable rock types.Mapping and sampling of the Wales Group and Descon Formation on Porcher Island, along with geochemical and geochronological data is critical for understanding and constraining the VMS economic mineral potential of the Alexander terrane.Preliminary geochemical data suggests that the Wales Group consists of two geochemically distinct rock packages, primarily based on Ba and Pb enrichment and depletion.Primary volcanic rocks are limited in the Descon formation, but limited data suggests the Descon represents a subduction related typical calc alkaline volcanic arc assemblage.
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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 | 0.001 | 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 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".