A Regional Mineralizing Event In The Mackenzie Mountains Northwest Territories, Canada
Bibliographic record
Abstract
The carbonate strata of the Mackenzie Mountains of Northwestern Canada are host to a large number of mineralized base-metal occurrences. Here, we present S, C, O and Pb isotopic data on carbonates, sulfides and sulphates from 22 showings hosted by Neoproterozoic, Lower Cambrian and Silurian-Ordovican and Devonian carbonate units. The S isotope data suggest that the source of S in all the deposits is variable and some may be derived locally. The Pb isotope data have consistent values for most of the showings and suggest a single Pb source for the mineralization, similar to the Pb found in the SEDEX deposits of the Selwyn Basin. Carbon isotopic data suggest that the fluids that formed the deposits have C which is derived from the host carbonates with some input from an organic source. The oxygen data suggest that the mineralizing fluids have compositions that are strongly rock buffered. In total, these data allow a model of a regional hydrothermal fluid flow event in the Mackenzie Mountains that deposited base metals in units of varying ages.
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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 | 0.002 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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".