Abstract: The stratigraphical cross-sections accomplished by the authorsnear Ankara have been used in the compilation of the l:500,000-scale geologicalsheet of Ankara ,and have shed much light on the stratigraphical problems of thatregion. These sections are more / less parallel to each other ,and according to theirlocations they may be named as follows:1) Lodumu cross-sections2) Lodumu-Taşpınar cross-sections3) Alacaatlı-Kutugun cross-sections4) Balıkuyumcu cross-sections5) Alçıköy cross-sectionsIn the authors opinion it would be better to consider all the formations whichare involved in these cross-sections within larger time units.