This study aims to determine the lineaments in the Palaeozoic - Cenozoic rocks outcropping around Gülşehir (Nevşehir) using Landsat-8 satellite images, shaded relief and slope maps and to compare them with field studies. Faulted structures in the region are formed by E-W trending thrusts, NE-SW trending reverse faults and NW-SE trending normal faults. A Digital Elevation Model (DEM) was used to produce the lineament maps. Google Earth and Landsat 8 images were also used. The shaded relief map (SRM) and slope map were derived from the DEM. The analysis of the produced linearity maps showed that the slope map and the integrated (SRM) map were more consistent with the field data. The lineament maps derived from the slope maps are largely consistent with the faults and fractures identified in the field. According to the strike maps, N15-300E and N75-900W orientated structures dominate the region. Lineaments show a tendency in all directions due to polyphase deformation.

In this study, an area of 150 km2 with important settlements and agricultural areas within the Kızılırmak and Kuyulukışla grabens, in the north of Nevşehir province (Turkey), was investigated. This study aimed to evaluate the hydrochemical properties and water quality of the vital groundwater in the study area, determine effective utilisation methods, and make recommendations for sustainable use. From the data obtained as a result of these analyses, sodium adsorption ratio (SAR) and sodium percentage (%Na) values were calculated and compared with WHO (World Health Organization) and TS-266 (Turkish Standards) quality standards to determine the characteristics of water for human consumption and irrigation for agricultural purposes. Based on these values, Wilcox diagrams and US Salinity Laboratory diagrams were used. According to these evaluations, it was found that sample SMP1 is not suitable for use as drinking water according to the basic parameters in the reference standards, while the other samples are suitable for drinking and human consumption. Electrical conductivity, %Na, SAR values, US Salinity Laboratory, and Wilcox diagrams were used to evaluate the use of water resources for irrigation purposes. According to the results obtained, all samples except sample SMP1 were found to be suitable for use as irrigation water.

In this study, the section of the Salanda fault zone between Yesiloz village and Gumuskent (Nevsehir, Turkey) was investigated by geodetic methods, and the amount of movement in this area was determined. We used a Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) to determine the line of sight (LOS) movement. Previous studies using geological and geomorphological indices have shown that the Salanda fault zone is active. For the first time in this study, 36 synthetic aperture radar (SAR) images acquired between January 8, 2020, and November 29, 2022, were used in PSInSAR analysis. When the annual velocity values of the stud area in the LOS direction were analysed, annual subsidence values of up to 7.6 mm and annual uplift values of up to 7.2 mm were revealed. These movements indicate that the Salanda fault is active and normal fault characteristics. However, it also has a dextral strike-slip component.

In the Çamardı (Niğde) district, the Niğde Massif is composed of marbles, gneisses, quartzites and amphibolites. These rocks of the Massif have been cut by Cretaceous aged granodiorites. The Paleocene-Eocene aged low-grade metamorphic rocks constitute the autochthonous cover of the Massif. These units are tectonically overlain by the Upper Cretaceous-Paleocene aged flyschoid and island arc type rocks. The Oligocene-Quaternary aged terrestrial and volcanic rocks constitute the youngest units in the district. The metamorphics of the Niğde Massif have been subjected to at least four phase ductile deformation (D 1 , D 2 , D 3 , and D 4 ) and folding. Through the D 1 phase deformation, the rocks of the Massif have been folded as recumbent-isoclinal folds (F 1 -F 2 phase folding) and have gained a structure with a foliation (S 1 ) which is parallel to the axial planes. Owing to the isoclinal and intense folding of the bedding planes (S 0 ) of the rocks, bedding transposition have developed and transposed folding structures have formed. Through the D 2 phase deformation, northeast-southwest trending and both northeast and southwest dipping map scale folds (F 3 phase folding) have developed. As a result of the interference of F 1 -F 2 and F 3 phase folds, in the district, folds, generated by Type-2 folding, have formed (mushroom folds). Second phase mesoscopic folds are of tight-isoclinal geometry and display asymmetrical and inclined fold feature. In the study area, as a result of D 3 phase folding a large dome structure has developed in the district. And D 4 phase folds have formed map scale synformal and antiformal structures that are trending approximately perpendicular to D 2 phase, plunging south-east and trending northwest-southeast. Through D 4 phase deformation, the cover rocks have been deformed together with the basement rocks (F 5 phase) that they overlie. The microscopic observations show that Cretaceous-Eocene aged rocks have been subjected to low-grade metamorphism in the greenschist facies through D 4 phase deformation. The geometry of the F 5 phase folds reflects cuspate-lobate structure which is the folding type peculiar to the districts where basement rocks and cover rocks have been deformed together.

The study area covers the Gülagaç district of Aksaray and its surroundings in the Central Anatolia region of Turkey. The basement of the study area consists of metamorphic rocks belonging to the Paleozoic–Mesozoic-aged Kaman Group. Mesozoic-aged ophiolites overlie these rocks, and both are cut by Late Cretaceous-aged igneous rocks. These units were then overlain by Palaeocene-Quaternary-aged volcanic and sedimentary units. The region has important geological structures that have undergone polyphase deformation, especially in the Eocene units. As a result of these deformations, faults, fractures, folds and linearities were formed. . These structures were compared with satellite-based tectonic lineaments, and it was observed that the general orientations of the lines determined in the field and the satellite-based lineaments were largely compatible. The results of this study can make an important contribution to the exploration of mineral and geothermal resources in the region.