## 5 Results and Conclusions
The highest base shear force was obtained for Suphan basalt, while the lowest base shear force was obtained for adobe. The tensile, compressive, and shear stresses have the highest values for Suphan basalt, and the lowest values have been obtained for adobe. Due to the random location of the minaret considered in Bitlis, the analysis was carried out in the time history by selecting the acceleration records of the 2011 Van (Eastern Turkiye) earthquake, which is the closest and most effective earthquake to this region. The time-history analyses were performed for minarets made of three different materials. This analysis was also carried out for concrete which can be classified in the non-natural material class, and adobe and Suphan basalt, which have the lowest and highest modulus of elasticity, respectively. A displacement of 18 cm was obtained for the adobe, where the displacement of Suphan basalt was 5.7 cm. With the increase of the modulus of elasticity, more rigid structures are obtained, and as a result, they have a smaller displacement under the effect of earthquakes. According to the analysis results, the maximum shear force and stresses that occur in the structure are high because the total weight of the material with a higher unit volume weight is also high. In addition, the maximum displacement in the structure increases with the weight of the structure. Therefore, a material with a high modulus of elasticity has a higher maximum shear force and stress levels. In contrast, the maximum displacement and period are lower in the materials with a lower modulus of elasticity. It is understood from the analysis results that the change in the Poisson ratio in the materials does not make a significant change in the displacement, basic shear force, and period values and that the stresses (S11, S12, and S22) increase when the Poisson ratio increases. While minarets made from C25 concrete, Diyarbakir, and Suphan basalt are within limits for the DL drift ratio for the design earthquake, all other materials do not meet this limit condition. CD status was not met for minarets made of adobe, brick, cut stone, and Bitlis stone but was satisfied for minarets made of other materials. It was not met for minarets made of all materials in the case before the collapse. While all DL conditions were met for the minarets made of C25 concrete and Suphan basalt, the minaret made of adobe fulfilled only the PC damage limit state. At the same time, successful results were obtained with fewer parameters in the natural fundamental period estimation thanks to a generated feed-forward and backpropagation ANN structure. The findings also determined the proper network structure and the necessary adjustments and parameters. These parameters constitute a pioneering model for decision support systems in natural fundamental period calculations. There is a significant consistency among all the results obtained. In this context, it is important that the structural analyses required for the material selection and design to be used in the minaret-type structures, which are delicate due to their construction style, are carried out with precision. While the ductility of such slender and tall structures should be as high as possible, it has been observed that even if the stresses that will occur in the structure can be carried, in case of constructed with masonry technique with low ductility, damage caused by brittle fractures in big earthquakes cannot be avoided. In market investigations between Suphan basalt, adobe, and concrete materials, adobe was obtained as the most economical material, while the material with the highest cost was Suphan basalt. While the cost of concrete was three times the cost of adobe, Suphan basalt was obtained at seven times the cost of adobe. The scope of this paper was minarets with a single balony and a circular cross-section. Future investigations can be conducted for minarets with two or three balconies and different cross sections.