The Extraction and Structural Analysis of Lineaments Around Gülsehir (Nevşehir) Using GIS Methods

Abstract

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.

Keywords

• turkey
• central anatolia
• nevşehir
• fault
• fracture
• lineament