Petrological and geochemical study of a magma-poor rifted margin : the Australia-Antarctica ocean-continent transition as a case study
Bibliographic record
Abstract
Les marges passives représentent la transition intraplaque entre un domaine lithosphérique continental et un domaine lithosphérique océanique. Elles enregistrent l’arrivée des premiers produits magmatiques lors de l’océanisation et constituent ainsi de véritables archives spatio-temporelles de la rupture continentale et l’initiation de l’accrétion océanique. Pourtant, les études des marges riftées peu magmatiques sont limitées à quelques rares endroits géographiques dont les marges actuelles conjuguées d’Ibérie-Terre-Neuve et les paléo-marges téthysiennes présentes dans les Alpes. Cette thèse explore les processus complexes de la transition entre la lithosphère continentale et la lithosphère océanique au niveau de la zone Diamantine, marge passive pauvre en magma située au sud-ouest de l’Australie. Les résultats s’appuient sur des données pétrologiques et géochimiques issues de l’analyse d’échantillons dragués par les campagnes MD80 et MD110. Ils permettent de souligner l’importance de l’héritage mantellique dans la formation de ces zones, tant sur le budget magmatique des marges pauvres en magma que sur la nature des produits magmatiques émis, ainsi que des processus d’interactions liquides magmatiques et roche (i.e. refertilisation).
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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) | 0.001 | 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".