Assembling Pangaea – The Complex Morphology of the Laurussia – Gondwana Collision
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 Late Paleozoic convergence and collision between Gondwana and Laurentia resulted in along-strike variations in the Alleghanian–Mauritanide–Variscan orogeny during the assembly of the greater part of Pangaea. A series of ca. 380–290 Ma events segmented the orogen into two principal geodynamic domains with contrasting tectonic evolutions. In the northeast, the European Variscan belt records multiple subduction–collisional tectonic events, including indentation by Laurussian and later Gondwanan promontories and by Gondwana-derived terranes. Late-stage events (330–290 Ma) produced strongly curved deformation belts (oroclines), and late- to post-orogenic extension. In contrast, the southern Appalachians formed south-west of the promontory collisions where subduction of Rheic Ocean remnants produced a continuous Andean-style orogenic arc that preceded ca. 290 Ma terminal collision. We explain Pangaea amalgamation using a global model of mantle convection like that of modern Earth.
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) | 0.000 | 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) | 0.004 | 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 it