VOLUME 55 (1)/April 2026

The Circum-Rhodope Belt is a major tectonic unit that surrounds both the Rhodope and the Serbo-Macedonian zones of the Alpine orogen in the northern Aegean region. The arc-related, supra-subduction zone Evros ophiolite represents the most important crustal element in the eastern part of the Circum-Rhodope Belt. A new U-Pb LA-ICP-MS zircon magmatic crystallization age of 174.6 ± 1.8 Ma obtained for the Agriani gabbro, together with the reviewed crystallization ages of other magmatic bodies reveal that the magmatic history of the Evros ophiolite spans 176 Ma to 169 Ma time interval. Reviewed ages of the medium to low-temperature cooling history from 550 ºC (⁴⁰Ar/³⁹Ar amphibole) down to 120 ºC (fission-track apatite) show that it immediately followed the magmatic