VOLCANIC REDBED COPPER MINERALIZATION IN THE HINDS LAKE AREA, CENTRAL NEWFOUNDLAND
Bibliographic record
Abstract
Central Newfoundland contains a collage of Cambro-Ordovician arc and non-arc volcanic rocks that are host to numerous base-metal (Cu–Pb–Zn) deposits; most notably the volcanogenic massive sulphide (VMS) deposits of the Buchans Group. However, other types of base-metal mineralization also occur throughout the region, in a variety of different lithotectonic settings. This study focuses on an area of copper-sulphide mineralization adjacent to the northwest side of Hinds Lake. The area is underlain by volcano-sedimentary rocks of presumed Silurian age. Exposed stratigraphic sequences consist of a lower unit of a columnar-jointed basaltic flow, unconformably to disconformably overlain by a thin siltstone sequence, which is overlain by a polymictic conglomerate. The sequence is capped by a unit consisting of thick-bedded, columnar-jointed to massive, subaerial to shallow-marine felsic pyroclastic flow. The stratigraphy has been tilted and displaced by minor normal faults. The copper-sulphide mineralization is structurally and stratigraphically controlled and is hosted by calcite–chlorite veins in the upper basalt flow. The simple, copper-rich mineralogy and association with subaerial to shallow-marine volcano-sedimentary rocks, suggest that the copper-sulphide mineralization shares many characteristics with the volcanic redbed copper deposits.
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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 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 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".