Bibliographic record
Abstract
Passive margin study has been at the core of scientific ocean drilling because it provide important information on processes in continental extension, breakup, and the eventual formation of new oceanic spreading centers. In this paper, ODP investigations in the evolution and characteristic of volcanic nonvolcanic passive margins have been briefly introduced. Drilling on the IberiaNewfoundland nonvolcanic margin by ODP Legs 103, 149 and 173 have demonstrated clearly that lowangle detachment faults have contributed to the unroofing and formation of continentocean transition zone, resulting in the exposure of serpentinized and tectonized mantle peridotite. Results from ODP Leg 104, 152 and 163 on volcanic passive margin of NorwayGreenland conjugate pair suggest that the magmatic processes have played a major role in the thinning of crust and the final breakup. Drilling results so far support an asymmetric simple shear mode for the formation of nonvolcanic margins. ODP explorations also reveal characteristics of seismic seawarddipping reflections. For a better understanding of the processes from continental extension to breakup to the final oceanic spreading, further indepth studies are required in the IODP phase by drilling, sampling across a full rift system on conjugate margin pairs and other locations such as Okinawa Trough and the South China Sea.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".