Extensional Collapse of Orogens
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The extensional collapse of an orogenic belt occurs when the gravitational potential energy in thickened crust is released by spreading laterally. Collapse may occur during shortening and mountain building (synorogenic collapse) or after a change in plate dynamics terminates mountain building and results in divergence (postorogenic collapse). In collisional orogens like the Cenozoic Himalaya–Tibet or Paleozoic Appalachian systems, collapse typically starts tens of millions of years after crustal thickening. The lag between thickening and collapse is related to the time it takes for radiogenic heat to accumulate within thickened crust. Heating causes partial melting and high metamorphic temperatures at mid-crustal levels, which enhances ductile flow. The Southern Appalachian Orogen underwent extensional collapse near the end of the continent-continent collisions that formed Pangea. Collapse occurred during the Carboniferous-Permian and was accompanied by high-temperature–low-pressure metamorphism, partial melting of midcrustal rocks, and magma emplacement. Extension was accommodated by a southeast dipping detachment fault system that developed near the location of the Laurentia-Gondwana suture with the Triassic South Georgia rift in the hanging wall.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.027 | 0.002 |
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 it