1. Turkish Petroleum (TP), Söğütözü, TR-06100 Ankara, Turkey
2. Netherlands Organization for Applied Scientific Research TNO, Earth, Life and Social Sciences – Geological Survey of the Netherlands, Princetonlaan 6, P.O. Box 80015, 3508 Utrecht, TA, The Netherlands
3. Department of Geological Engineering, Middle East Technical University, TR-06531 Ankara, Turkey