EVOLUTION OF THE BASEMENT STRUCTURAL STYLE OF THE NORTH ATLANTIC FROM THE BREAKUP OF THE CONTINENT TO MODERN RIFTING ACCORDING TO THE ANOMALOUS GRAVITY FIELD
Bibliographic record
Abstract
The Newfoundland-Iberian segment of the Atlantic-Arctic rift system, bounded by demarcation faults of the 1st order, within which the demarcation boundary of the 2nd order is distinguished, has fundamental differences in the structure of the basement to the north and south of it according to relief and gravity anomalies. Morphometric attribute, that plausibly reflects the basement structures beneath the sedimentary cover around the continental margins and in the region of the Mid-Atlantic Ridge, free of sediments, is the attribute «azimuth», calculated from gravity anomalies in the free air. Evaluation of methods for calculating the quantitative characteristics of this attribute in test areas with a predominance of typical mutually orthogonal structural bottom elements showed that the 2-dimensional spectra of the analyzed field in the local areas, in addition to the orientation of the structures, also show their amplitude in the initial field and their spatial periodicity, and adequately describe the structural style of the basement in modern coordinates, varying from the periphery of the basin to the mid-oceanic ridge. In the process of evolution, the basement with a variable geometry is formed, in which there is rotation in the sea floor plane by ~10–15 ° and deviations due to superimposed atypical structures.
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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 | 0.000 |
| 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) | 0.001 | 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".