Structural and lithologic controls on the nature and distribution of gold in the BIF-associated 1150 and 1250 lode series at Tiriganiaq, Meliadine district, Rankin Inlet greenstone belt, Nunavut
Bibliographic record
Abstract
The Meliadine gold project is located within the Rankin Inlet greenstone belt, Nunavut; one of Canada's largest emerging gold districts. A large part of the 1000 and 1100 ore zones or 'lodes' at the Tiriganiaq mine are closely associated with the moderately to steeply north-dipping Lower fault and are characterized by decimetre to metre wide laminated, fault-fill veins and associated deformed extensional veins. Other ore zones such as the 1150 and 1250 lodes, north of the 1000 and 1100 lodes, appear to have a more complex geometry. Preliminary research indicates that the main controls on gold distribution within the 1150 lode series are Lower fault parallel, narrow north-dipping reverse shears that overprint the slightly steeper, north-dipping main foliation and associated axial planar tight folds. Shallowly south-dipping extension veins associated with the shear zones and related fault-fill veins are preferentially developed in tightly folded decimetre to metre thick BIF layers around the moderately north-dipping reverse shears.
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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 | 0.001 | 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".