Physical and chemical properties of dust in the Pre-Aral region of Uzbekistan

particles depend on geographic location. Different elements 
have been observed in Qatar (Aïssa et al. 
2016
, Javed et al. 
2017
) such as Al
2
(SiO
4
)O, Mg
2
(SiO
4
), Ca(CO
3
), Al
2
(SiO
4
)
O, Ca
2
Mg(Si
2
O
7
), and Mg
2
(SiO
4
).
Elemental compositional analysis has been performed by 
EDS for the four different places of image in Fig. 
3
(
a
) and 
the constituting chemical elements have been established 
(Fig. 
5
). Large concentrations of elements such as C, O, Na, 
Mg, Al, Si, K, Ca, and Fe have been detected. The results 
are consistent with those of XRF results (Table 
1
) and of 
inductively coupled plasma atomic emission spectroscopy 
that detected substantial amount of Ca, Al, Fe, K, Mg, and 
Na. The other elements such as Ti, P, Mn, S, Ba, Sr, Zn, Zr, 
Fig. 4