STRATIGRAPHIC AND STRUCTURAL SETTING OF THE ANCHIMETAMORPHIC ROCKS TO THE SOUTH OF TAVŞANLI (KÜTAHYA, WESTERN TURKEY): RELATION TO THE İZMİR-ANKARA ZONE

Year 1995, Volume: 117 Issue: 117, 5 - 16, 01.10.1995

Orhan Kaya Walid Sadeddın Demir Altıner Engin Meriç İzver Tansel Aylin Vural

Abstract

In western Anatolia, a belt of
anchimetamorphic rocks that are characterized by penetratively developed slaty
deavage, extensive mineral overgrowths and formation of new phylosilicate
minerals extends between the Izmir-Ankara zone and the northernmost schist and
gneiss masses of the Menderes massif In the report area, the anchimetamorphic
assemblage is divisible into three stratigraphic units The Middle Triassic
lower slate unit consists mainly of slates representing fine-grained silicic
and basic tuffs, and subordinately of silicic lava, quartz-conglomerate,
quartzofeldspathic sandstone, gray and red limestones. thinly bedded lithic
sandstone and red bedded chert. The Middle Triassic to probably Early Liassic
upper slate unit consists mainly of slates representing illitic mudrocks and
lithic wackes, and subordinately of lithic arenite. lithic conglomerate, gray
limestone and coarse-grained mafic tuff. The Middle Liassic limestone unit is
made up of gray bioclastic limestones. The Latest Cretaceous (to Paleocene)
turbidite-olistostrome unit, which is widely spread in the Izmir-Ankara zone,
overlies unconformably the southerly-tying anchimetamorphic rocks and the steep
boundary fault separating these rocks from the older entities of the zone. The
exposure of the relative allochthon of the anchimetamorphic rocks of a southern
origin, the steepening of the fault and the onlap of the turbidite-olistostrome
unit onto the anchimetamorphic basement seem to be Latest Cretaceous events.

Keywords

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