FORMATION OF Pt Fe ALLOY BY DESULFURIZATION OF Pt Pd SULFIDE IN THE J M REEF OF THE STILLWATER COMPLEX, MONTANA
Why this work is in the frame
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Bibliographic record
Abstract
L'alliage Pt-Fe (Pt 3 Fe) faisant partie du banc J-M du complexe de Stillwater, a la mine Stillwater, au Montana, se presente en intercroissances avec un sulfure de Fe-Ni-Cu secondaire. Cet assemblage remplace un sulfure de Pt-Pd (braggite ou cooperite). Le meme alliage se presente en grains distincts associes a chalcopyrite, tellurures de Pt-Pd, et or natif dans les assemblages alteres contenant chlorite, epidote, amphibole, talc et serpentine. L'intercroissance se limite aux echantillons montrant une faible quantite d'alteration ( 20%, volume) dans le banc J-M a la mine Stillwater et ailleurs dans ce meme horizon. La presence de chalcopyrite et d'inclusions de pentlandite originelles dans le sulfure Pt-Pd altere fait penser que ce sulfure a cristallise a partir d'un liquide sulfure apres la cristallisation de la chalcopyrite et d'un precurseur de haute temperature de la pentlandite, et s'est fait remplacer par l'intercroissance de l'alliage Pt-Fe avec sulfure Fe-Ni-Cu secondaire a cause d'une interaction avec une phase fluide hydrothermale sous-saturee en S. La pentlandite associee au sulfure Pt-Pd altere contient des teneurs plus elevees en Pd (jusqu'a 9.8%, poids) que la pentlandite non associee, ce qui temoignerait d'un gain de Pd par la pentlandite grâce a des reactions d'echange Ni-pour-Pd avec l'intercroissance qui remplace le sulfure Pt-Pd au cours de la desulfuration.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it