Petrogenetic evolution of late Cenozoic, post-collision volcanism in western Anatolia, Turkey

Aldanmaz E., Pearce J., Thirlwall M., Mitchell J.

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, cilt.102, ss.67-95, 2000 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 102
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1016/s0377-0273(00)00182-7
  • Dergi Adı: JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.67-95
  • Anahtar Kelimeler: western Anatolia, collision, volcanism, petrogenesis, CONTINENTAL FLOOD BASALTS, ISOTOPE GEOCHEMISTRY, EASTERN ANATOLIA, TRACE-ELEMENT, MANTLE PLUMES, CRUST, ND, ARC, SR, LITHOSPHERE
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Following an Eocene continent-are collision, the Western Anatolia region experienced a complete cycle of thickening and orogenic collapse. The early stage of collision-related volcanism, which was most evident during the Early Miocene (<21 Ma), produced a considerable volume of lavas and pyroclastic deposits of basaltic andesite to rhyolite composition. The volcanic activity continued into the Middle Miocene with a gradual change in eruptive style and magma composition. The Middle Miocene activity formed in relation to localised extensional basins and was dominated by lava flows and dykes of basalt to andesite composition. Both the Early and Middle Miocene rocks exhibit calc-alkaline and shoshonitic character. The Late Miocene volcanism (<11 Ma) was marked by alkali basalts and basanites erupted along the zones of localised extension.