Abstract: It has been possible to generalize the results of geophysical resistivity survey, to a distinctive classification, of few alluvial cones in our Country. The correlation of resistivity crossection values and resistivity values derived from field curves obtained nearby the wells, and electrical logs, of Aksaray, Koç-hisar, and Merzifon alluvial cones have been made. it has been pointed out that the structure and thickness of the alluvial cones, has been found different due to the principal of sedimantation of alluvial cones.

It has known that Aksaray alluvial cone is also Important from the engineering point of view. Results of geophysical survey has been provided the best available and efficient data for the artificial recharge problem of the area. The cause of the exceeding thickness of iinconsolidated material of Merzifon alluvial cone have been attributed to the occurences of recent faulting.

Generally, in the article, it has been given emphasize to the efficiency of geophysical resistivity surveys, in the determination of the geometry of alluvial cones.