Geology and petrography of selected carbonate-hosted Zn-Pb deposits of the southeastern Cordillera, British Columbia and Alberta
Bibliographic record
Abstract
The Monarch, Kicking Horse, Shag, Munroe, and Oldman carbonate-hosted, sulphide deposits of the southeastern Canadian Cordillera share many of the characteristics of Mississippi Valley-type deposits, such as stratabound lenses, pods, and disseminated sulphide minerals locally accompanied by breccia-vein systems. The deposits are hosted in dolostone located at major facies transitions between shallow-water carbonate platformal and deeper basinal rocks along the ancient Paleozoic margin of the Canadian Cordillera. They are associated with fault and breccia structures located nearby or along the platform-basin facies transition. The location and geometry of these deposits reflect the interplay between structures (i.e. deep-seated faults located at platform-basin transition) and lithologies (i.e. permeable and reactive stratigraphic units). Sulphides, consisting of sphalerite, galena, and, to a lesser extent, pyrite, are present as fracture, breccia matrix, and vug-fillings, as well as replacement of dolostone host rock. Dolomite and calcite are the common gangue minerals. Quartz is present at three showings of the Shag deposit but is otherwise absent (except for trace amounts at Kicking Horse). Paragenesis is relatively simple and shares many features across the studied deposits. Generally, sulphide paragenesis starts with pyrite, followed by sphalerite and then galena.
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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 | 0.003 | 0.005 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".