Apatite fission track dating of the Beypazar? Granitoid insight for the inception of collision along the Northern Neotethys, Turkey

摘要

The Beypazar? Granitoid is an arc-related intrusion in the Central Pontides, Turkey. This study presents apatite fission track (AFT) ages of the intrusion to shed some light on collision-related cooling/exhumation history of the central Pontides. The AFT ages from different altitudes (506–805-1110 metres above sea level) of the Beypazar? Granitoid yield around 65?±?3?Ma. This indicates a rapid cooling/exhumation for the intrusion around 65?Ma, which is attributed to the commencement of the collision event in the region. Integration of these ages and low-temperature thermochronology literature suggests a progressive collision propagation towards the margins of the collision system.