Ross Sea Region Soil Sites
517000
517
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
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 |
| A moderately developed cobble to boulder pavement; surface boulders well rounded with some exfoliation; dolerite clasts moderately to strongly stained; |
| sandstone clasts moderately stained |
Nil
517a 2-0cm
101
surface cobbles
102
small boulders and sandy gravel
103
rock particles mainly subangular and weakly to moderately stained
104
some strongly altered with yellowish brown coatings on internal fracture faces,
517b 0-6cm
201
strong brown (7.5YR 5/8) very sandy gravel
202
weakly cohesive
203
many fine diffuse salt flecks
204
rock particles subangular and weakly to moderately stained, some partly altered
205
smaller particles subrounded
206
distinct boundary,
517c 6-14cm
301
strong brown (7.5YR 5/6) sandy gravel
302
weakly cohesive
303
many distinct salt flecks, some nodular
304
some diffuse patches of more strongly oxidised red (2.5Y 5/6) soil
305
rock particles subangular, weakly stained and some partly altered
306
indistinct boundary,
517d 14-20cm
401
strong brown (7.5YR 5/8) very sandy gravel
402
loose to weakly cohesive
403
rock particles subangular and weakly stained
404
indistinct boundary,
517e 20-32cm
501
strong brown (7.5YR 5/8) sandy gravel
502
loose,
517f 6-14cm
601
red (2.5Y 5/6) sandy gravel
602
irregular patches within the profile
Yes
a,b,c,d,e,f
Dry frozen
32
5
(>32cm)
| Soluble Salt |
| Concentration |
51700006
85.00
19.00
39.00
25.00
4.00
2.00
4.00
6.00
0.28
51700001
51700002
86.00
17.00
39.00
21.00
3.00
2.00
6.00
10.00
0.43
51700003
81.00
18.00
37.00
22.00
5.00
3.00
7.00
7.00
0.51
51700004
76.00
20.00
36.00
21.00
5.00
3.00
7.00
7.00
0.51
51700005
81.00
21.00
37.00
23.00
4.00
3.00
6.00
6.00
0.37
51700006
7.60
2.44
9.60
2.20
5.20
0.06
4.70
6.00
1.80
51700001
51700002
8.00
4.21
12.90
8.10
9.90
0.07
0.01
21.70
4.00
51700003
6.40
4.28
22.00
4.00
10.00
0.08
7.80
19.90
4.90
51700004
5.40
2.57
12.00
7.80
3.40
0.04
6.10
4.80
2.70
51700005
6.00
1.68
8.20
0.74
2.10
0.04
3.70
3.30
0.40
51700006
85
10
5
51700001
51700002
90
10
basanite (CaSO4)
51700003
60
30
10
51700004
80
15
5
51700005
80
15
5
12-Dec-2005
Page 475 of 896
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