Bibliographic record
Abstract
Summary The Pangean supercontinent extended and broke apart in the early Jurassic, but an understanding of how and why this event took place when it did has remained elusive. An analysis of the angular velocities governing the global plate circulation during this period reveals that the final closure of the Paleo-Tethys Ocean between Eurasia and Cimmeria and the early opening of the Atlantic Ocean between North America and South America/Africa were governed by symmetric motions sharing a common rotation axis. This symmetry is remarkable and is consistent with a subduction-driven mechanism in the disaggregation of Pangea. A basic hypothesis is that the Eurasia-Cimmeria collision disrupted the clockwise spin of Pangea during the Triassic. Pangea rifted because tensional stresses were redistributed within Pangea following the collision. Rifting was localized across zones of pre-existing thick-skinned weakness within Pangea (late Paleozoic suture zones) which were optimally-oriented parallel to the north Tethyan subduction system.
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.
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) | 0.004 | 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 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".