Exploring for copper-gold deposits with time-domain electromagnetics in the Chapais-Chibougamau mining camp: Case history of a challenging variable environment.
Bibliographic record
Abstract
Following petrophysical studies, geological and geophysical data compilation, the former Opemiska underground mine of the Chibougamau District was selected for conducting an experimental TDEM ground survey. Fourteen different sites confirmed the variability of the EM response associated with chalcopyrite veins, and the difficulty in relying on an equivocal signature to locate the massive sulfides. Surveys away from the veins showed a variety of responses. Petrophysical measurements and microscopic observations suggest complex interrelations between the amount of ore in the rock, fabric, texture, porosity, mineralogy and impurities, leading to a wide range of bulk conductivity values that suggest chalcopyrite might be a semiconductor at this site. Presentation Date: Wednesday, October 19, 2016 Start Time: 2:45:00 PM Location: Lobby D/C Presentation Type: POSTER
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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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".