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


Gülyüz E.

GEODINAMICA ACTA, vol.32, pp.1-10, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32
  • Publication Date: 2020
  • Doi Number: 10.1080/09853111.2020.1809824
  • Title of Journal : GEODINAMICA ACTA
  • Page Numbers: pp.1-10
  • Keywords: Beypazari Granitoid, apatite fission track, neo-tethys, collision, exhumation, BLACK-SEA BASIN, EASTERN PONTIDES, CENTRAL ANATOLIA, TECTONIC EVOLUTION, TETHYAN SUTURE, METAMORPHISM, EXHUMATION, GEOCHRONOLOGY, MAGMATISM, HISTORY

Abstract

The Beypazari 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 Beypazari 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.