Cold Tectonics of Kos, Central Dodecanese: Oligocene Bivergent Extension of the Pelagonian Domain
Bibliographic record
Abstract
Abstract Tectonic and lithological correlations between the Cycladic Blueschist Unit of the Aegean domain and Pelagonian domain of the western Turkey have rarely been proposed. Herein, we focus on the pre‐volcanic geology of Kos, and investigate the tectonic history of the central Dodecanese Islands and the general correlation between the two domains. Raman Spectroscopy of Carbonaceous Material analyses combined with white mica 40Ar/39Ar and zircon (U‐Th)/He geochronology were carried out to determine peak temperatures and the timing of tectonothermal events recorded by the various units. Three tectonic units were identified: (a) the Dikeos Unit including the Paleozoic Unit overlain by the Permo‐Triassic Wildflysch Unit, whose rocks have reached a maximum temperature of 300°C; (b) the Marina Basement Unit was thrusted onto the Dikeos Unit with top‐to‐N kinematics during the Paleocene, reaching a maximum temperature of 565°C; (c) the Marina Cover Unit is preserved as isolated klippen juxtaposed onto the Dikeos Unit along the Oligocene top‐to‐SSE Kos Detachment. The Dikeos Unit was then intruded by a c. 10 Ma monzonite, creating a few hundred meters wide metamorphic aureole. At the regional scale, we propose that units from Kos belong to the Pelagonian domain and that post‐orogenic N‐S bivergent extension started in the Oligocene. Over the same time, the deformation started to propagate to deeper structural levels affecting the rocks of the Cycladic Blueschist Unit. Unfortunately, the lack of consensus on the deformation history in southwestern Turkey does not unequivocally allow the constraints to be extended eastward. Finally, mid‐Neogene to recent extension continues within a consistent N‐S direction, which is related to slab retreat and tearing.
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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 | 0.001 | 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) | 0.001 | 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".