Abstract: ERTS-A. satellite imagery of.the Northern Kızılırmak basin, NE of Ankara, shows different, tectoniclimeation patterns for Kırşehir Massif in the SE» ,and the North Anatolian Fault Zone System, in the NW. The changeof pattern, seems to take place mainly across the Northern Kızılırmak basin (also known as the Çankırı basin), whichappears to be a gnaben, formed to compression. This may toe the location, of a closed trench, in which part of the Kırşehir Massif may have been dragged. Rocks of ophiolitic melange to the north of Yozgat seem to toe obducted southwardover the Kırşehir Massif. Clockwise hear movement, bad. probably started in the south affecting first the sedimentaryrocks covering the Massif. Later, the activity gradually shifted northwards to the present location of the North AnatolianFault Zone System.