Preliminary geological and petrographic study of the Poplar Mountain Au occurrence, southwestern New Brunswick
Bibliographic record
Abstract
The Poplar Mountain Volcanic Complex consists of three principal volcanic and subvolcanic units in the Poplar Mountain area, i.e. porphyritic dacite, dacitic volcaniclastic rocks, and basaltic volcanic rocks. The porphyritic dacite is a subvolcanic intrusion located in the centre of a volcanic dome and is sur-rounded by dacitic volcaniclastic rocks. The basaltic unit is stratigraphically above the felsic units. Gold mineralization is mainly associated with arsenopyrite, and to a lesser extent with pyrite and stibnite. The sulphides are disseminated in the dacite, and in various quartz-carbonate-sericite veins and quartz-cemented breccia. The mineralized zones are characterized by a higher degree of fracturing and veining than the barren zones, and are closely related to phyllic (sericite+carbonate+quartz+illite) alteration. Propyllitic (chlorite+carbonate+illite) alteration is widespread, and is mainly preserved in nonmineralized zones. The mineralization and alteration share some analogies with low-sulphidation epithermal deposits, or the outer zone of a porphyry-type system.
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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 | 0.002 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| 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".