Volume 22, Issue 66 (9-2022)                   jgs 2022, 22(66): 159-169 | Back to browse issues page


XML Persian Abstract Print


1- : Ph.D Student of Geomorphology, Natural Geography, Faculty of Geography and Environmental Sciences, Hakim Sabzwari University, Sabzevar, Iran
2- Professor of Geomorphology, Natural Geography, Faculty of Geography and Environmental Sciences, Hakim Sabzwari University, Sabzevar, Iran , Amirahmadi1388@gmail.com
3- Associate Professor of Geomorphology, Natural Geography, Faculty of Geography and Environmental Sciences, Hakim Sabzwari University, Sabzevar, Iran
Abstract:   (3336 Views)
 The purpose of this research is to use granulometric analyzes in desertification studies in Gonabad city,  To achieve this goal, after the preparation of geomorphological maps of the region, 14 sediment samples were taken from the erosion-sensitive facies of the region. In the laboratory, a series of sieve with a diameter of 2000, 1000, 500, 250, and 64 micrometers, and a container Gatherings of sediment smaller than 64 μm were screened. The results showed that the highest frequency of particle diameter in sand samples was in the 250-225 micron class. And, given the average particle relationship with their transport intervals, it can be concluded that the distance between the particles was close to a point. Variants of different samples varied from 1.502 to 1.319. The most prevalent plots of ridge and the smallest slopes with low slope were the highest. In surveys in the skidding section, precipitates were mostly positive tilted, indicating the prevalence of fine particles in the region.
 
Full-Text [PDF 1255 kb]   (699 Downloads)    
Type of Study: Applicable | Subject: Geomorphology

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.