Degradation Modeling of Salmas Earthquake (1930) Fault Scarp, NW Iran

Erosion agents diffuse the scarps created by the earthquakes, are and their primary sharp shapes are gentled. This process is accomplished with the definite rate, which is accounted with the diffusion equation. Rate of diffusion depends on primary shape of scarp and diffusion coefficient that is coefficient of diffusion equation. The coefficient depends on various parameters such as the climate and the value of erosion of scarp material. The coefficient is accounted with the modeling of earthquake scarp with the definite age and initial shape. We afforded three profiles from the Salmas earthquake scarp created in 1930. We diffused the reconstructive primary shape of them by the code that we wrote in theMatlab software. We present diffusion coefficient of the Salmas area, and the mean of definitive coefficient. This coefficient is used for other earthquake scarps and traces in this and other areas with the same climate. The age of their formation was calculated by this coefficient and the prepared profiles.