Abstract: This article deals only with «the orogenic phases of the Ankara Region». The author tried to compile all available geological data relatedto the same subject from various sources and to give a brief summary ofdifferent observations together with the author`s personal views. Manyof these observations have not been published, but some of them werepartly discussed at the yearly meeting of the Turkish Geological Society,in February 1959, in order to contribute some information to Prof. Dr.İ. KETİN, who later published a paper on «the orogenic evolution ofTurkey» (İ. KETİN, 1959).