Research Article

Element Geochemical Analysis of the Contribution of Aeolian Sand to Suspended Sediment in Desert Stream Flash Floods

Table 2

Mean (±SD) concentration of elements in the suspended sediment and the three source areas.

Chemical
element
Suspended sedimentAeolian sand
( )
Channel bank material
( )
Argillaceous arkose sandstone
( )
August 23, 2011 ( )July 18, 2012 ( )

SiO2 (%)
Al2O3 (%)
Fe2O3 (%)
MgO (%)
CaO (%)
Na2O (%)
K2O (%)
P (ppm)
Ti (ppm)
Mn (ppm)
Co (ppm)
Ni (ppm)
Rb (ppm)
Sr (ppm)
Zr (ppm)
Ba (ppm)
Ce (ppm)
V (ppm)
Cr (ppm)
Cu (ppm)
Ga (ppm)
As (ppm)
Y (ppm)
Nb (ppm)
Pb (ppm)
Nd (ppm)
Zn (ppm)ndndnd
La (ppm)ndndndnd

Note: : the sediment number; nd: no determination; SD: standard deviation.