An assessment of active tectonic by morphometric factors in south of Birjand plain watershed

Document Type : Original Article

Authors

1 Range and Watershed Group, Faculty of Natural Resources and Watershed Management, Birjand University,City of birjand, Iran, Country

2 1- M.Sc. Student of Watershed Management Engineering, Faculty of Natural Resources and Environment, Birjand University,

3 - Associate Professor, Faculty of Natural Resources and Environment, Birjand University

4 Associate Professor, Faculty of Natural Resources and Environment, Birjand University

5 - Assistant Professor, Faculty of Science, Birjand University

Abstract

 
Abstract
Morphotectonics expresses the relationship between geomorphology and tectonics. The plain of Birjand is located in eastern Iran. The purpose of this study was to identify the physical parameters of the study area also, the performance of these parameters is based on changes occurring on the surface of the earth, this purpose, field data and topographic maps have been used and the following results are achieved. The AF range varies from 28.11 (southwest) to 0.61 (southwest). The range of changes in T is from 0.72 (southwest) and 0.23 (southwest). The highest Smf is 1.91 (southeast), the lowest is 1.02 (southwest) of the basin. The calculation of the VF index showed a slight neo-tectonic upsurge. The lowest value is S 1.05 (west) and the largest is 1.16 (west) of the region. The lowest value of the index is Re 0.19 (southern part) and the highest value is 0.72 (south). Hypsometric integral is calculated; the highest value is 0,505 (Southeast) and the lowest value is 0,166 (Southwest). The Dd index is (South East) with the lowest 1.59 and the Southwest 2.25. The highest Te (southeast) is 2.55 and the lowest (southwest) is 0.47. The highest value of the index C (southwest) is 0.62 and the lowest (southwest) is 0.44. The parameter Iat shows; the plain of Birjand is located in the active degree of morphometric changes, and these active areas are more in the southern range (Bagheran mountain).

Keywords

Journal of Tectonics
Volume 3, Issue 9
June 2019
Pages 69-81

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