Datation UPb : âge de mise en place du magmatisme bimodal des Jebilet centrales (chaıne Varisque, Maroc). Implications géodynamiques
Bibliographic record
Abstract
Le plutonisme bimodal des Jebilet centrales est daté à 330,5 +0,68 −0,83 Ma par la méthode UPb sur zircons. Cet âge, identique à celui des plutons syntectoniques de granodiorite à cordiérite des Jebilet, date également la phase tectonométamorphique majeure locale. Le plutonisme syntectonique des Jebilet, constitué de suites tholéiitiques, alcalines et calco-alcalines peralumineuses, est très diversifié. La mise en place des magmas est favorisée par l'extension locale induite par le coulissage le long de la limite ouest des bassins carbonifères de la Meseta marocaine. Les Jebilet constituent un bon exemple d'activation de sources magmatiques multiples durant un épisode de convergence continentale et de déformation transcurrente.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.004 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
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".