Igneous Rock Associations 11. The Geology and Petrology of Seafloor Volcanic Rocks of the Northeastern Pacific Ocean, Offshore Canada
Bibliographic record
Abstract
The seafloor within Canada’s Exclusive Economic Zone in the northeastern Pacific Ocean features examples of three kinds of volcanic activity: mid-ocean ridge, near-ridge seamount, and intraplate seamount volcanism. Volcanism on the northern Juan de Fuca and Explorer ridges, at inter-transform pull-apart rifts, and at near-ridge seamounts close to the Juan de Fuca and Explorer ridges, produces lavas with unusually variable geochemical compositions. Lavas incorporate variable contributions from both trace-element-depleted upper mantle and trace-element-enriched veins, blobs or streaks embedded in the depleted upper mantle. The latter may have originated as dispersed parts of ancient mantle plumes similar to a modern plume responsible for the formation of the intraplate Bowie Seamount. SOMMAIRE Les fonds oceaniques de la Zone economique exclusive du Canada de la region nord-est du Pacifique montrent des exemples de trois types d’activite volcanique : volcanisme de dorsale medio-oceanique, de monts sousmarins de dorsale, et de monts sousmarins d’intra-plaque. Le volcanisme de la dorsale Explorer et de la portion nord de la dorsale de Juan de Fuca, au droit des rifts d’extension de failles inter-transformantes, et non loin des monts sous-marins jouxtant la dorsale Explorer et celle de Juan de Fuca produisent des laves de composition geochimique anormalement variable. Les laves renferment des quantites variables de materiaux du manteau superieur appauvris en elements traces mais aussi de filons enrichis en elements traces, en amas ou trainees ennoyes dans le manteau superieur. Ces derniers peuvent provenir de reliquats d’anciens panaches mantelliques similaires aux panaches modernes a l’origine de la formation du mont sous-marin de Bowie.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.005 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.002 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.008 | 0.001 |
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".