A RHOMBOHEDRAI POTYTTPE OF MOLYBDENITE*
Bibliographic record
Abstract
Rhombohedral molybdenite (molybdenite-3R) has been identified as an accessiory mineral in quartz-feldspar porphyry occurring at the Con mine, Yellowknife, District of Mackenzie. The following observations on the occurrence and origin of the quartz-feldspar porphyry have been taken from Boyle (1961). Irregular dykeJike bodies of quartz-feldspar porphyry are found in the under-ground workings of the Con, Negus and Rycon mines. The porphyries contain phenocrysts of quartz and zoned plagioclase in a groundmass of fine-grained plagioclase, quartz, microcline, muscovite, carbonates and chloritized biotite. Pyrite and pyrrhotite are particularly abundant in the porphyries in the vicinity of the Con mine, and molybdenite is present as disseminated flakes in a few of the bodies. Other accessory minerals include small amounts of apatite, zircon, rutile and epidote. The sulphides appear to be primary constituents, and probably crystallized with the quartz and feldspar, because they fill interstices between these minerals and form along the cleavage planes of biotite.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".