Temporal, geochemical and geodynamic evolution of the Late Cretaceous subduction zone volcanism in the eastern Sakarya Zone, NE Turkey: Implications for mantle-crust interaction in an arc setting


AYDİN F., OĞUZ SAKA S., ŞEN C., DOKUZ A., Aiglsperger T., UYSAL İ., ...More

JOURNAL OF ASIAN EARTH SCIENCES, vol.192, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 192
  • Publication Date: 2020
  • Doi Number: 10.1016/j.jseaes.2019.104217
  • Journal Name: JOURNAL OF ASIAN EARTH SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Artic & Antarctic Regions, Geobase, INSPEC
  • Keywords: Late Cretaceous, Subduction, Volcanism, Mantle-crust interaction, Sakarya Zone, Eastern Pontides, NE Turkey, PONTIDE OROGENIC BELT, I-TYPE GRANITOIDS, CONTINENTAL-CRUST, ISOTOPIC CHARACTERISTICS, NEOTETHYAN CONVERGENCE, GUMUSHANE AREA, ARTVIN AREA, ROCKS, MAGMATISM, PETROGENESIS
  • Dokuz Eylül University Affiliated: Yes

Abstract

The Late Cretaceous Artvin volcanic rocks (LCAVs) from the eastern Sakarya zone (ESZ) of NE Turkey are composed of mafic/basaltic (S1-catak and S2-caglayan) and felsic/acidic (S1-Kizilkaya and S2-Tirebolu) rock types that occurred in two successive stages: (i) first stage (S1: Turonian-Early Santonian) and (ii) second stage (S2: Late Santonian-Campanian). Clinopyroxene thermobarometric results point that the S2-caglayan basaltic rocks have crystallised at higher temperatures and under deeper crustal conditions than those of the S1-catak basaltic rocks.