Petrogenesis of the Miocene volcanism along the Izmir-Bahkesir Transfer Zone in western Anatolia, Turkey: Implications for origin and evolution of potassic volcanism in post-collisional areas


Ersoy Y. E., Helvaci C., UYSAL İ., KARAOĞLU Ö., Palmer M. R., Dindi F.

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, vol.241, pp.21-38, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 241
  • Publication Date: 2012
  • Doi Number: 10.1016/j.jvolgeores.2012.05.022
  • Journal Name: JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.21-38
  • Keywords: Western Anatolia, Miocene volcanism, Mantle metasomatism, Post-collisional magmatism, Continental subduction, METAMORPHIC CORE COMPLEX, TRACE-ELEMENT, LITHOSPHERIC MANTLE, MENDERES MASSIF, CALC-ALKALINE, SR ISOTOPE, AR-40/AR-39 GEOCHRONOLOGY, TINOS ISLAND, NW ANATOLIA, ULTEN ZONE
  • Eskisehir Osmangazi University Affiliated: No

Abstract

The Miocene volcanic rocks along the Izmir-Balikesir Transfer Zone along the western margin of the Menderes Core Complex (MCC) in western Anatolian Volcanic Province (WAVP), where strike-slip deformation is dominant, comprise: (Group 1) early-middle Miocene high-K to shoshonitic rocks with high-Mg# and relatively low SiO2, (Group 2) middle Miocene phonolitic rocks with low-Mg# and intermediate SiO2, (Group 3) early-middle Miocene medium- to high-K series from andesites to rhyolites, (Group 4) middle Miocene rhyolites with distinct trace element compositions; and (Group 5) late Miocene high-MgO basalts, K-trachybasalts and (Group 6) late Miocene high-MgO basaltic andesites.