3-D numerical constraints for the Triassic mafic igneous system of Antalya (SW Turkey): Magma generation associated with southern Neotethyan slow seafloor spreading

KARAOĞLU Ö., ERKÜL F., Erkul S. T., Lustrino M.

TECTONOPHYSICS, vol.826, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 826
  • Publication Date: 2022
  • Doi Number: 10.1016/j.tecto.2022.229236
  • Journal Name: TECTONOPHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, Communication Abstracts, Compendex, Geobase, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Basalt, Dolerite, Magma chamber, Numerical modelling, Intracontinental rifting, Extensional tectonics, MANTLE SOURCE CHARACTERISTICS, SNAKE RIVER PLAIN, LOCAL STRESSES, SIERRA-NEVADA, VOLCANISM, CHAMBER, DIFFERENTIATION, EVOLUTION, PETROLOGY, COMPLEX
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

A similar to 400 m thick Middle-Late Triassic volcano-sedimentary succession crops out in a relatively narrow corridor similar to 5 km long and similar to 25 km wide close to Antalya Gulf, SW Turkey. The volcanic and subvolcanic rocks represent the majority of the succession and are associated with epiclastic breccia, turbiditic sediments as well as chert and limestone layers. The igneous rocks are alkali basalts, with incompatible element content matching the classical HiMU-OIB types. These are considered as the precursors of a rift system that would have later evolved into a mature Neotethyan oceanic system, with emplacement of massive tholeiitic basalt sequences, not recorded in the investigated area.