Reinterpretation and unrealized potential of the Meadowville sandstone zinc-lead occurrence, Pictou County, Nova Scotia
Bibliographic record
Abstract
The Meadowville disseminated zinc-lead occurrence lies in grey, plant debris-rich sandstone, the base of the late Carboniferous Boss Point Formation, overlying red granitic conglomerate of the Claremont Formation. At Meadowville (NTS 11E/10), as well as at the Leitches Creek lead-zinc occurrence and the Yava lead-zinc deposit, underlying evaporite-bearing Canso and Windsor group rocks contain unconformities and faults. At Meadowville these discontinuities permit fluid access from underlying, potentially zinc-rich, mafic conglomerate and basalt. Drilling down dip from Meadowville failed to discover significant base-metal sulphide mineralization. The hole was tentatively interpreted to cross the ore zone into the Claremont Formation. Reinterpretation of the core shows that the hole terminated in grey, intraformational conglomerate within the Boss Point Formation, probably not reaching the mineralized zone. Plant debris-rich sandstone unconformably overlying faulted evaporitic strata is a likely exploration guide for sandstone Pb-Zn deposits in late Carboniferous rocks of the Canadian Maritimes.
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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 | 0.001 |
| 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) | 0.003 | 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".