RARE-ELEMENT MINERALOGY OF THE UZUMINE GRANITIC PEGMATITE, ABUKUMA MOUNTAINS, NORTHEASTERN JAPAN
Bibliographic record
Abstract
Nous documentons la structure interne, les textures, et les mineraux enrichis en elements rares de la pegmatite granitique de Uzumine, situee dans les montagnes Abukuma au nord-est du Japon, afin de connaitre les compositions chimiques, les processus de formation, et les conditions de mise en place d'une pegmatite a elements rares mise en place dans un socle metamorphique equilibre a faible temperature et a faible pression. Le filon de pegmatite se distingue par une abondance de tourmaline, monazite, et euxenite, avec de faibles proportions d'andalusite et de corindon, et une absence de mineraux lithiniferes et fluores. Le filon est fortement zone, a partir d'une zone de paroi, une zone intermediaire, et un noyau de quartz sans cavites miarolitiques. Une zone de bordure n'a pas ete observee a cause de l'alteration et du cisaillement. La pegmatite a ete mise en place syntectoniquement il y a environ 96 million d'annees dans le socle metamorphique d'Abukuma a faible profondeur dans la croute (1-1.5 kbar, 300°C). Les textures et compositions des mineraux indiquent la cristallisation sequentielle de la zone de bordure jusqu'au noyau de quartz a mesure que la temperature a diminue. La zonation des cristaux de tourmaline et de grenat indique une cristallisation au cours de la differenciation chimique avec temperature decroissante. D'apres le couple Fe-Mn dans les oxydes, le degre de fractionnement est moyen, mais le degre de fractionnement indique par le couple Nb-Ta est plutot faible.
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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 | 0.001 |
| Science and technology studies | 0.001 | 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 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".