Journal of Range and Watershed Managment

Investigation of granulometry of aeolian sediments in relation of sand dune morphology (Case study: Kashan Erg)

Document Type : Research Paper

Authors

Asghar Tavakkoli Fard 1
Aliakbar Nazari Samani 2
Naser Mashhadi 3
Hoda Ghasemieh 4
Mojtaba Hodayi Arani 5

1 MSc, Faculty of Natural Resources and Geoscience, University of Kashan, Iran

2 Assistant Professor, Faculty of Natural Resources, University of Tehran, Karaj, Iran

3 Assistant Professor, International Desert Research Center, University of Tehran, Iran

4 Assistant Professor, Faculty of Natural Resources and Geoscience, University of Kashan, Iran

5 MSc, Faculty of Geography, University of Tehran, Tehran, Iran

https://doi.org/10.22059/jrwm.2014.51826
Abstract
Kashan Erg is one of the most important sand dunes complexes in Iran. It is included the most important various type of sand dunes in Iran. This study was performed to compare the granulometry of aeolian sediments in different sand dunes and also from plinth to crest of transverse dunes that located in Kashan Erg’s north. In order to determining different statistical variables, aeolian sediment sampling was conducted in different sand dunes. Then, the sample’s granulometry test was done based on dry sieve analysis. Finally, statistical parameters such as mean diameter, Sorting, Skewness, Kurtosis, d10, and d90 were determined. The results showed that the mean diameter, Sorting, d10 and d90 parameters  have significant differences at the 95% significance level between the stabilized sand dunes and active ones. Moreover, it was found that in transverse sand dunes, there are a significant difference at the 95% significance level between mean diameter and d90 parameters in bottom of the stoss side and lee side.

Keywords

active dunes
Granulometry
Kashan Erg
stabilized dunes
transverse dunes
Wind Erosion
Journal of Range and Watershed Managment
Volume 67, Issue 2 - Serial Number 2
Summer 2014
Pages 189-202

  • Receive Date 11 July 2012
  • Revise Date 29 June 2014
  • Accept Date 17 October 2013
  • Publish Date 22 June 2014

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