Crustal structure beneath the Florida‐to‐Edmonton broadband seismometer array
Bibliographic record
Abstract
Ps receiver functions were stacked to determine crustal thickness and V p /V s ratios for the 28 stations of the Florida‐to‐Edmonton Broadband Seismometer Array and 6 adjacent permanent stations. Roots of thickened crust exist beneath the Paleozoic Appalachian orogen and the Proterozoic Trans‐Hudson orogen. The ratios of surface elevation to root thickness are lower than observed in young, active orogens, as are average crustal root buoyancies determined from gravity data. These results are consistent with global trends, and may be explained by increased crustal root density due to metamorphism. Crustal thickening is also observed beneath the Mid‐Continent Rift in Iowa, consistent with compressional inversion of the rift during the Grenville orogeny.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 teacher head, 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".