AGE AND GEOCHEMISTRY OF BASALT-CHERT ASSOCIATIONS IN THE OPHIOLITES OF THE IZMIR-ANKARA MELANGE EAST OF ANKARA, TURKEY: PRELIMINARY DATA

Bortolotti V., Chiari M., GÖNCÜOĞLU M. C. , Marcucci M., Principi G., TEKİN U. K. , ...More

OFIOLITI, vol.38, no.2, pp.157-173, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 2
  • Publication Date: 2013
  • Doi Number: 10.4454/ofioliti.v38i2.424
  • Title of Journal : OFIOLITI
  • Page Numbers: pp.157-173
  • Keywords: Ophiolites, basalts, geochemistry, radiolarians, Triassic, Jurassic, Early Cretaceous, Izmir-Ankara Melange. Turkey, BORNOVA FLYSCH ZONE, PIENINY KLIPPEN BELT, CENTRAL ANATOLIA, RADIOLARIAN ASSEMBLAGES, TETHYAN OPHIOLITES, NORTHERN BRANCH, CENTRAL SAKARYA, PASSIVE MARGIN, VOLCANIC-ROCKS, WESTERN TURKEY

Abstract

In this paper, we present the preliminary data on the age of the radiolarian cherts deposited on top of basalts belonging to the Eastern Ankara Melange (part of the Izmir-Ankara Melange). Petrological studies on the basalts were carried out in order to constrain the tectonic setting of the studied basalt-chert sequences. Nine sections were sampled East and Northeast of Ankara and twenty seven samples were collected for biostratigraphic and geochemical analyses.