Wonderland gabbro: U-Pb age and geological implications, Manitoba (NTS 63K12NE)
Bibliographic record
Abstract
The Wonderland gabbro is one of several gabbroic bodies in the Bear Lake Block of the Flin Flon Belt that are spatially associated with small Niand PGE-rich sulphide zones, including the McBratney Ni-PGE-Au occurrence. A genetic association between the Ni-PGE-Au mineralization and these intrusions is difficult to establish with certainty, but elevated (>200 ppb) grab sample Pt-Pd concentrations from the Wonderland gabbro point to a possible primary association with this mineralization. The 1839.9 ±3.9 Ma age of the intrusion indicates that it postdates juvenile oceanic arc volcanism of the host Bear Lake basalts by at least 45 million years. The Wonderland gabbro is, within error, the same age as the 1847 ±6 Ma ultramafic intrusion that hosts the magmatogenic PGE-rich Namew Lake Cu-Ni sulphide deposit. The association of this suite of synto post-Missi intrusions with Ni and PGE mineralization raises the possibility that an intrusive event of this age could be a significant and only partly explored metallogenic episode in the Flin Flon Belt.
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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 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".