Stratigraphy of the Afyon Zone around Emet (Kutahya, NW Anatolia) and geochemical characteristics of the Triassic volcanism along the northern Menderes Massif

AKAY E., İŞİNTEK İ., Erdogan B., Hasozbek A.

NEUES JAHRBUCH FUR MINERALOGIE-ABHANDLUNGEN, vol.188, no.3, pp.297-316, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 188 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1127/0077-7757/2011/0205
  • Journal Name: NEUES JAHRBUCH FUR MINERALOGIE-ABHANDLUNGEN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.297-316
  • Keywords: Afyon Zone, Ikibasli Formation, Budagan limestone, metarhyolite, geochemistry, paleontology, NW Anatolia, WESTERN ANATOLIA, METAMORPHISM, EVOLUTION
  • Dokuz Eylül University Affiliated: Yes

Abstract

During the Alpine orogeny, the northern margin of the Tauride-Anatolide Block was deeply buried below the Sakarya continent and subjected to high pressure/low temperature metamorphism. Along this suture zone Tavsanli Zone, Afyon Zone, Bornova Flysch Zone and opholitic melange nappes form the different tectono-stratigraphic units. The Afyon Zone, in its western part, consists of a slightly deformed and metamorphosed Mesozoic platform succession with abundant fossil remains. The lower part of this succession is represented by the Ikibasli Formation which is dominated by the metadetrital units consisting of rhyolitic to basaltic volcanic intervals and large limestone blocks. A platform-type carbonate sequence (Budagan limestone) forms the upper part of the Afyon Zone. From the Ikibash Formation and the Budagan limestone unit, a Late Triassic to Maim fossil assemblage was identified constraining the depositional age of the platform carbonates and the age of rhyolitic volcanism accompanying the deposition. Geochemical characteristics of the rhyolites indicate a continental crust origin of the magma.