Ross Sea Region Soil Sites
518000
518
23-Jan-1983
IBC, GGC
Dry Valley region, Transantarctic Mountains, Wright Valley
Soil weathering examination
CS & B&W Pro
No
161.0170
-76.5848
76deg 35.1'S
-161deg -1.0'E
On the north side of the Asgard Range in Folkvangar Valley; a high sloping bench like surface; 2m away from site 517
4
N
1,650
| Surfaces in the mouths of valleys in the Asgard Range have old Miocene aged tills; at this site, old till is present with a well weathered soil; a few granite erratics occur |
| indicating a non local origin for the till |
Some small local snow patches; no soil moistening visible
-30
Central mountain
Dolerite and sandstone till
Endolithic lichen locally present
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Weathering of the surface soil layers is patchy; in some places the soil is red near the surface
Nil
518a 0-6cm
101
red (2.5Y 4/6) sandy gravel
102
weakly cohesive
103
weakly developed vesicular structure
104
many fine salt precipitations
105
larger rock particles subangular, weakly stained and weakly to moderately altered
106
smaller particles rounded to subrounded
Yes
a
0
5
| Soluble Salt |
| Concentration |
51800001
75.00
24.00
37.00
16.00
4.00
2.00
4.00
12.00
0.42
51800001
7.60
4.27
14.00
7.60
11.60
0.08
9.20
14.80
5.80
51800001
70
25
5
12-Dec-2005
Page 476 of 896
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