'Roll-front' mass transfer of carbonate cations in Carlin-type gold deposits: insights from UV-fluorescent calcite veins
Bibliographic record
Abstract
This dataset contains clumped isotope data for ore-stage carbonate veins from the Nadeleen trend Carlin-type gold deposits, Yukon Canada, which likely form through replacement of pre-ore carbonate veins. The five analyzed samples include: Sample CI-6 from a grey, bedding-parallel calcite vein with fibrous syntaxial growth and cone-in-cone textures that give it a ‘beefy calcite’ texture, collected from the Lower Carbonate Member in drillcore through the Conrad deposit. CI-7 is from a white, bedding-normal, UV-flourescent calcite vein with blocky crystals, which cuts the vein from which sample CI-6 was obtained. Sample CI-8 is a UV-fluorescent calcite vein with realgar along its edge. It comprised elongate syntaxial crystals, some of which contain sub-grains. The vein cuts through decarbonatized wall-rock with abundant realgar. CI-9 is a sample of least-altered wall-rock from the Upper Carbonate member of the Nadaleen Formation. This limestone is dominantly calcite with minor quartz, and there is no indication that this unit has interacted with any hydrothermal fluids. CI-10 is a white, non-UV-fluorescent, bedding-normal vein comprising blocky calcite crystals that was sampled adjacent to CI-9.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.005 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.010 | 0.011 |
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".