Table 5.
Density gradient segregation of the coarse, medium, and fine
silt fractions of the 0- to 2.5-cm-depth samples of the
desert pavement and desert mound soils
Desert Mound
Desert Pavement
Band No.
Density
Range
(g/cm?)
Weight
Fraction
(4)
Density
Range
Activity
(g/cm?)
(%)
53 -
Weight
Fraction
(%)
Activity
(%)
20 um
1
< 1.8
0.3
0
< 1.8
1.4
2
2
1.98-2.14
2.8
2
1.93-2.04
2.7
3
3
2.26-2.32
12.1
2
2.20-2.30
15.6
8
4
2.46-2.54
13.0
3
2.45=-2.52
9.9
2
5
2.56-2.62
43.0.
2
2.54-2.61
45.4
6
6
> 2.9
18.3
90
> 2.9
19.0
80
20 -
5 um
1
< 1.8
1.0
2
< 1.8
3.9
5
2
2.07-2.16
9.2
2
1.92-2.02
8.0
9
3
2.24-2.35
12.7
3
2.06-2.11
8.6
6
4
2.38-2.43
25.4
4
2.19-2.33
32.9
11
5
2.55-2.64
40.6
9
2. 36-2.56
33.6
12
6
> 2.9
4.1
78
> 2.9
3.4
57
< 1.8
8.1
7
5
-
2 um
2.3
6
2.10-2.20
14.9
15
1.94-1.99
8.9
10
3
2.20-2.26
21.4
14
2.08-2.17
15.7
10
4
2.26-2,.39
21.5
13
2.17-2.27
39.7
24
5
2.48-2 .58
32.9
17
2.27-2.36
22.4
23
6
> 2.9
1.9
36
> 2.9
0.8
26
1
< 1.8
2
.11