Currently my research centers on two partly overlapping fields:
Regional Geology and
to understand the Phanerozoic tectonic evolution of the Eastern Mediterranean
and Black Sea region, and specifically
several months each summer in the field, mapping and collecting structural, petrographic, sedimentological
and paleontological data in various regions of
Okay, A.I., Satır, M., Zattin, M., Cavazza, W. & Topuz, G., 2008, An Oligocene ductile strike-slip shear zone: Uludağ Massif, northwest Turkey implications for the escape tectonics. Geological Society of America Bulletin, 120, 893911
Okay, A.I., Tüysüz, O., Satır, M., Özkan-Altıner, S., Altıner, D., Sherlock, S., & Eren, R.H., 2006, Cretaceous and Triassic subduction-accretion, HP/LT metamorphism and continental growth in the Central Pontides, Turkey. Geological Society of America Bulletin, 118, 1247-1269.
Okay, A.I., Tüysüz, O. & Kaya, Ş., 2004, From transpression to transtension: Changes in morphology and structure around a bend on the North Anatolian Fault in the Marmara region. Tectonophysics, 391, 259-282
Over many years I have been fascinated by the geology of the high and ultrahigh pressure metamorphic rocks. Their mineralogy is interesting with unusual minerals, such as jadeite, glaucophane, lawsonite, coesite, aragonite They also indicate deep burial and subsequent exhumation of oceanic and continental crust, and provide valuable constraints on the thermal structure of the downgoing lithosphere, as well as on the temporal evolution of subduction zones. The few selected recent papers below illustrate my research in HP rocks:
Topuz, G., Okay, A.I., Altherr, R., Satir, M., Schwarz, W.H., 2008, Late Cretaceous blueschist-facies metamorphism in southeastern Thrace (Turkey) and its geodynamic implications. Journal of Metamorphic Geology, 26, 895913.
Topuz, G., Okay, A.I., Altherr, R., Meyer, H.P. & Nasdala, L., 2006, Partial high-pressure aragonitization of micritic limestones in an accretionary complex, Tavşanlı Zone, NW Turkey. Journal of Metamorphic Geology, 24, 603-613.
Serdar Akyüz, 1995
Sarah Sherlock, 1999
Cenk Yaltırak, 2003
M. Burak Yıkılmaz, 2002,
Zahide Özgörüş, 2003
A. Turgay Akbulut, 2004
Kenan Akbayram, 2006
Ömer Faruk Dereköy, 2006