نویسندگان
1 دانشگاه فردوسی مشهد، گروه زمین شناسی
2 گروه زمین شناسی، دانشکده علوم، دانشگاه فردوسی مشهد، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
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.
کلیدواژهها [English]
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