Patterns of Sediment Particle Distribution under the Influence of Wind and Water Flow Intensity in the Saleh-abad Region (Northeastern Iran)

Articles in Press

Authors

Department of geology, Faculty of science, ferdowsi university of mashhad, iran

10.22084/psj.2025.31054.1472

Abstract

Dust storms, as a natural phenomenon, can exert considerable effects on the Earth system, the environment, and human life. To investigate the sedimentological characteristics of dust in the Salehabad region, seven depositional samplers were installed across Salehabad County and six adjacent villages. Dust samples were collected over one year duration and analyzed using laser granulometry. Based on Folk’s (1974) classification diagram, most particles were found to fall within the silt size range. The fine grain size indicates that the dust likely originates from remote sources. Bimodal and polymodal patterns in particle size distribution suggest the influence of multiple dust sources, which vary with wind direction and intensity throughout the year. Wind rose data for the area reveal two predominant wind directions. Additionally, water flows may also contribute to the polymodal nature of the particle size distributions. The abundance of particles smaller than 10 microns in the dust samples highlights their potential to cause environmental and health issues, particularly respiratorydisease.

Keywords

Applied Sedimentology

Articles in Press, Accepted Manuscript
Available Online from 15 June 2025

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History

  • Receive Date: 26 March 2025
  • Revise Date: 11 May 2025
  • Accept Date: 15 June 2025

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