The effect of inheritance, rheology, and stress orientation on the 4-D evolution of rift systems
Bibliographic record
Abstract
<p>Continental rifts often show a complex spatial and temporal evolution, controlled by the intricate interaction of several ingredients. Inheritance, plate rheology, and stress orientation are amongst the main factors that shape rifts and dictate their fate. In this contribution, we use observations from two rift systems – i.e., the Labrador Sea and the Atlas System – to constrain 3D geodynamic models and assess the role of inherited structures, rheological heterogeneities, stress field (re-) orientation and obliquity on rift evolution.</p><p>The Labrador Sea formed as a branch of the North Atlantic Ocean, which propagated across major Precambrian suture zones. The subsequent rifted margins show striking lateral changes in the structural architecture, the crustal geometry, and the magmatic budget during breakup. Our geophysical data analysis and 3D geodynamic models suggest that pre-rift rheological changes in the lithosphere (i.e., composition, thickness, and thermal structure) dominated the rifting process and the ensuing continental breakup.   </p><p>The Atlas fold and thrust belt is a failed rift system that evolved in Mesozoic times and was inverted in the Cenozoic. The rifting phase was driven by two concurrent extensional stress fields linked to the coeval opening of two highly oblique oceans: the Central Atlantic and the Tethys. Here, our 3D geodynamic models constrained by field observations highlights the importance of the pre-rift structural template in dictating the strain distribution/localization, the lithospheric extension mode (i.e., orthogonal rifting vs. transtension), and the location of magmatism.</p>
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) | 0.000 | 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 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".