People at Fort Hoofddijk

Murat Özkaptan
Dr. M. Özkaptan
Paleomagnetic Laboratory 
Fort Hoofddijk
TubitakMiddle East Techical University
Department of Earth Sciences
Utrecht University 
Budapestlaan 17, 3584 CD Utrecht 
The Netherlands 

Phone +31 30 253 1361


Usually at:
Karadeniz Technical University
Trabzon, Turkey

Research of Murat Özkaptan

Paleomagnetism of the Haymana Basin
 (Central TURKEY)
   The Haymana Basin straddles the Izmir-Ankara-Erzincan Suture Zone (IAESZ) in the north and Intra-Tauride Suture Zone (ITSZ) in the south. These suture zones demarcate the former position of Neotethys Ocean in Turkey and these suture zones are formed due to subduction of Neotethys Ocean and collision of Pontides of Eurasian affinity in the north and Taurides and Kırşehir Block of Gondwana affinity in the south. Haymana Basin is located in a very crucial position where IAESZ and ITSZ meets and comprises late Cretaceous to Middle Eocene possibly complete (but with local unconformities) infill that recorded subduction (fore-arc basin stage) to collision (foreland basin stage) history of the region.

   The Basin comprises three distinct sequences extending from Upper Cretaceous to Lower Tertiary. Each sequence comprises three formations namely these are Haymana Fm, Beyobasi Fm, Kartal Fm, Caldag Fm, Yesilyurt Fm, Kirkkavak Fm, Ilginlikdere Fm, Eskipolatli Fm and Beldede Fm respectively. The organisation of these sequences are spatial and temporal, i.e. they do not exposes every part of the basin and they have lateral gradations which makes the stratigraphy of the basin very complex. Partly the complications are due to imprecise dating of the units.
Objectives of this study

1 - Unravelling tectonostratigraphical evolution of the basin and its paleogeographical positions in dif- ferent time slices mainly using magnetostratigraphical tools in addition to classical field and biostratigraphical tools. Available ages are based either on superposition or thin limestone horizons within the very thick fossil devoid clastics or volcanoclastics,

2 - Determining the sedimentation rates for different parts of the basin infill which could be related to changes in the uplift rates and deformation within the provenance.

3 - Quantifying the vertical axes rotations of tectonic blocks.

    In order to reveal basin geometry and thickness, Gravity (left) & Magnetic (right) data have been processed (correcting, transforming, filtering and finally modeling).
The data are taken from three different sources: MTA (General Directorate of Mineral Research and Exploration), EGM 2008 & EMAG 2, NOAA (National Geophysical Data Center).

MTA Turkey

Murat ÖZKAPTAN is supervised by Nuretdin KAYMAKCI

publicationsPublications of Murat ÖZKAPTAN

  • Gürer, D., van Hinsbergen, D.J.J., Özkaptan, M., Creton, I., Koymans, M.R., Cascella, A., and Langereis, C.G. (2018). Paleomagnetic constraints on the timing and distribution of Cenozoic rotations in Central and Eastern Anatolia, Solid Earth Discussions, 9, 295-322.  
  • Kaymakcı, N., Langereis, C.G., Özkaptan, M., Özacar, A.A., Gülyüz, E., Uzel, B. and Sözbilir, H. (2018). Paleomagnetic evidence for upper plate response to a STEP fault, SW Anatolia, Earth and Planetary Science Letters, 498, 101-115.
  • Özkaptan, M., Kaymakci, N., Langereis, C.G., Gülyüz, E., Özacar, A.A., Uzel, B. and Sözbilir, H.(2018). Age and kinematics of the Burdur Basin: inferences for the existence of the Fethiye Burdur Fault Zone in SW Anatolia (Turkey), Tectonophysics, 744, 256-274.  
  • Malandri, C., Soukis, K., Maffione, M., Özkaptan, M., Vassilakis, E., Lozius, S. and van Hinsbergen, D.J.J. (2017). Vertical-axis rotations accommodated along the Mid-Cycladic lineament on Paros island in the extensional heart of the Aegean orocline (Greece), Lithosphere, 9, 78-99.   
  • Uzel, B., Sümer. Ö, Özkaptan, M., Özkaymak. Ç, Kuiper, K.F., Sözbilir. H., Kaymakci, N., İnci, U. and Langereis, C.G. (2017). Paleomagnetic and geochronologic evidence for a major middle Miocene unconformity in Söke Basin (Western Anatolia) and its tectonic implications for the Aegean region, Journal of the Geological Society, 174, 721-740.  
  • Meijers et al. (2016)
  • Uzel, B., Langereis, C.G., Kaymakci, N., Sözbelir, H., Özkaymak, Ç., Özkaptan, M. (2015). Paleomagnetic evidence for an inverse rotation history of Western Anatolia during the exhumation of Menderes metamorphic core complex,  Earth Planetary Science Letters, 414, 108-125.   
  • Uzel, B., Langereis, C.G., Kaymakci, N., Sözbelir, H., Özkaymak, Ç., Özkaptan, M. (2015). Reply to Karaoğlu and Erkül’s comment on: “Paleomagnetic evidence for an inverse rotation history of Western Anatolia during theexhumation of Menderes core complex”,  Earth Planetary Science Letters, 427, 312.   
  • Karaoğlu, Ö. and Erkül, F. (2015). Comment on "Paleomagnetic evidence for an inverse rotation history of Western Anatolia during the exhumation of Menderes metamorphic core complex" by Uzel et al. (Earth Planet. Sci. Lett. 414 (2015) 108-125), Earth Planetary Science Letters, 427, 309-311.