Transforming the Eastern Mediterranean: The Aegean-Cyprus Slab Tear
Bibliographic record
Abstract
The Aegean and Western Anatolian region has experienced widespread extension since the Late Oligocene, characterized by southward migration of arc volcanism, exhumation, and basin formation. Recent seismic data have revealed a significant tear between the subducted Aegean and Cyprus slabs. Such a tear is expected to disrupt local mantle flow, yet its impact on surface processes like topography, deformation, and magmatism remains poorly understood. In this study, we develop 4D geodynamic models to explore the effects of slab tearing in this part of the eastern Mediterranean region. Our model results demonstrate that tear-induced mantle flow aligns closely with a range of geological and geophysical observations, including a counterclockwise toroidal flow beneath Western Anatolia. The slab tearing also triggers rapid transient mantle upwelling, resulting in dynamic topographical uplift. Additionally, it facilitates the influx of hot asthenosphere from behind the subducted slab, promoting partial melting and widespread magmatism across the region. The model further indicates that the overlying continent is under extension, with the extension direction transitioning from NE-SW in Western Anatolia to N-S towards the Aegean trench. Our findings reconcile with observed geological anomalies in the Aegean zone and Western Anatolia, such as the distribution of volcanic activity and patterns of crustal deformation. This correlation not only validates our model but also provides new insights into the complex interactions between slab dynamics and surface expressions, enhancing our understanding of how slab discontinuities manifest geological phenomena.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".