10.1016/0967-0653(95)96463-f
Bibliographic record
Abstract
New swath mapping sonar systems have revealed the structure of the mid-ocean ridge (MOR) and sunounding deep ocean floor with unprecedent clarity. These images show that the MOR is partitioned into segments by a variety of offsets such as transform faults, overlapping spreading centers and very fine scale discontinuities which are barely detectable. The smallest scale segments are the fundamental building blocks for creation of new oceanic crust. They are only 2-20 km long and are active, distinct units for only =100-10,000 years. At fast spreading centers, the axial neovolcanic zone is a persistent 300-400 m high elevation produced by the bouyancy of hot rock and magma; it is not a volcanic construction (most of the time and in most plac e ~ )so there is almost no vestige of it off-axis. Along ~60%of its length, the spreading center is characterized by an axial summit caldera produced by volcanic inflation and collapse. The size and shape of the axial high are very sensitive indicators of a relatively steady and robust magma supply at fast-spreading ndges, and have been used successfuliy to predict the location of magma chambers and to forecast recent volcanic emptions including one witnessed from ALVIN in March-Apnl 1991. At intermediate spreading rates, the axial region cools sufficiently for a volcanic constructional edifice to develop episodically and for normal faulting to occur along an axial graben. Under these conditions axial volcanoes are split in two by the axial graben and rernnants can be found on the flanks of spreading centers. At slow-spreading ridges, the magma budget is relatively starved as indicated by a persistent axial nft valley and a highly discontinuous neovolcanic zone, and strong asymmetry in profiles along and across the strike of the ridge.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.999 | 1.000 |
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; both teacher heads agree on what is shown here.
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".