Petrology and geochemistry of Tertiary volcanic rocks from the Ikizee (Ordu) area, NE Turkey: Implications for the evolution of the eastern Pontide paleo-magmatic arc

Temizel İ., Arslan M.

JOURNAL OF ASIAN EARTH SCIENCES, cilt.31, ss.439-463, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jseaes.2007.05.004
  • Dergi Adı: JOURNAL OF ASIAN EARTH SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.439-463
  • Anahtar Kelimeler: calc-alkaline volcanics, eastern Pontide, crystal fractionation, mineral chemistry, subduction zone, Tertiary volcanism, Turkey, CONTINENTAL-CRUST, NORTHEAST TURKEY, MANTLE WEDGE, TIME-SCALES, PETROGENESIS, LAVAS, ASSIMILATION, ELEMENT, SERIES, FRACTIONATION
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Tertiary volcanism in the Ikizce region at the western edge of the eastern Pontides paleo-magmatic arc is represented by basaltic and andesitic rocks associated with sediments deposited in a shallow basin environment. The basaltic rocks contain plagioclase (An(58-80)), olivine (Fo(82-84)), clinopyroxene (Wo(44-48)En(35-42)Fs(7-17)), hornblende (Mg# = 0.68-0.76) phenocrysts, and magnetite microcrysts, whereas the andesitic rocks include plagioclase (An(25-61)), clinopyroxene (Wo(46-46)En(38-43)Fs(11-13)), hornblende (Mg# = 0.48-0.81), biotite (Mg# = 0.48-0.60) phenocrysts, titanomagnetite, apatite, and zircon microcrysts.