Volcano‐Tectonic Evolution of the Christiana‐Santorini‐Kolumbo Rift Zone

Located on the Hellenic Arc, Christiana-Santorini-Kolumbo (CSK) rift zone represents one of most active and hazardous volcano-tectonic systems in Mediterranean. Although this has been intensively studied, its tectonic evolution interplay volcanism tectonism are still poorly understood. In study, we use high-resolution reflection seismic imagery to reconstruct opening basins. For first time, relate activity individual faults with specific volcanic centers space time. Our analysis shows a pre-volcanic NNE-SSW-oriented paleo basin underneath CSK volcanoes, representing transfer between Pliocene ESE-WNW-oriented basins, which was overprinted by NE-SW-oriented regime hosting Late that initiated at Christiana Volcano. All subsequent volcanoes evolved parallel trend. Two major Pleistocene pulses preceded fundamental changes including occurrence widespread small-scale followed focusing Santorini increasing explosivity. The observed correlation system magmatism suggests deep-seated control plumbing system. turn, our reveals absence large-scale segments affected indicating secondary feedback mechanism A comparison neighboring Kos-Nisyros-Yali field Rhodos highlights concurrent regional changes, suggesting potential arc-wide scale interplay.