Stratigraphic And Petrographical Characteristics of The Yukarıkaracahisar (Banaz‐Uşak) Region 

Alican ÖZTÜRK, M.Muzaffer KARADAĞ


Paleozoic and Cenozoic (Quaternary) aged metamorphic, sedimentary, volcanic and
ultramafic rocks crops out around Yukarıkaracahisar (Banaz-Usak) village.
The Paleozoic Baybuyan formation occurs at the basement. The Paleozoic Arıkaya formation
comprising crystallized limestones overlie conformably on the basement unit. Late Triassic- Jurassic
Aşağıbelove formation and Çiçeklikaya formation having lateral and vertical transition with it rest
unconformably on the Arıkaya formation. During Late Crateceous, Muratdağı melange thrusted on the
older units. The Paleogene aged Küllücetepe formation overlies unconformably on the Muratdağı
melange and underlies the Paleogene Ekinlik formation. All these formations are covered by Middle-Late Miocene Yeniköy formation having lateral and vertical transition with the Karacahisar volcanics
comprising the Sarıtaş tuff member and the Fındıklı riodacite member. The Quaternary alluvium
deposited unconformably over the all older units.

The presence of chloritoids in the metapellites of the Baybuyan formation, the occurrence of
“chloritoid+epidote+chlorite” and “chloritoid+muscovite+chlorite” paragenesis and the absence of
garnet (almandine) indicate “quartz+albite+epidote+biotite” subfacies of the Barrovian-type green schist
facies metamorphism. On the other hand, rarity of garnet-amphibolites with their typical and distinct
mineral paragenesis shows the highest metamorphism conditions in the Muratdağı melange. The
presence of green hornblends in the garnet amphibolites and the typical hornblende + garnet + epidote +
plagioclase paragenesis indicate ” quartz + albite + epidote + almandine” subfacies of the Barrovian-type
green schist facies. This metamorphism occured under 350-500 oC temperature and 5-6 kb presssure.
Following this metamorphism, the region underwent a low grade (greenschist facies) metamorphism
whose effect can be seen on the Baybuyan, Arıkaya, Aşağıbelova, Çiçeklikaya formation and the
Muratdağı melange.


Stratigraphy; petrography; metamorphism; Muratdağı; Banaz. 

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