Ross Sea Region Soil Sites
257000
257
19-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains, at the junction of the Albanus and Scott Glacier at Mt Zanuck
Soil weathering examination
US Geological Survey 1:250 000 1968, Mount Goodale
No
-150.8330
-85.9333
85deg 56.0'S
150deg 50.0'E
On a moderately steep ridge surface amongst rocks, leading to the low peak of Mt Zanuck about 75m below the summit; in places on the ridge, patches of soil with fine |
material between bedrock outcrops, are present |
15
SW
2,400
The rocks are granites with fracturing along joint planes; fine material, derived either from wind blown accumulation or from insitu fragmentation has accumulated in clefts in |
the bedrock |
Patchy snow cover is present but no thawing observed
-40
Central Mountain
Accumulated fine debris from granitic rocks
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Appreciable staining on adjacent rock outcrops but no cavernous weathering; rock fragmentation by splitting along joint planes; salts present beneath some |
surface boulders and along rock fracture faces |
Nil
257a 0-5cm
101
brownish yellow (10YR 6/6) sandy to silty granular pebbly gravel
102
loose
103
rock particles angular, weakly stained and partly altered
104
indistinct boundary,
257b 5-15cm
201
brownish yellow (10YR 6/6) silty to sandy granular gravel
202
weakly cohesive
203
rock particles subrounded and many distinctly altered
204
257c 5-15cm
301
brownish yellow (10YR 6/6) silty to sandy granular gravel
302
few to many fine diffuse salts, mainly around rock fragments,
257d 15-35cm
401
brownish yellow (10YR 6/6) silty sand from deeper rock cracks
Yes
a,c,d
Dry frozen
35
4
(>35cm)
Soluble Salt |
Concentration |
25700001
63.00
36.90
18.00
20.00
6.30
8.80
7.10
2.40
0.43
25700002
53.00
35.80
16.00
15.00
3.10
8.20
12.80
8.40
0.47
25700003
64.00
13.30
8.60
8.90
3.50
14.00
43.30
7.30
0.81
25700004
85.00
17.70
11.40
10.50
5.80
13.80
19.80
20.00
0.67
25700001
7.60
2.20
21.10
24.00
20.60
0.50
3.90
78.00
1.30
25700002
6.60
4.80
22.60
21.00
4.80
0.70
9.00
44.00
2.20
25700003
6.50
24.00
129.00
26.00
271.00
1.90
7.80
370.00
12.90
25700004
6.60
14.00
72.00
26.80
127.00
1.20
10.00
166.00
7.50
25700001
50
25
10
25
25700002
35
15
15
15
10
10
25700003
40
15
30
5
10
25700004
50
7
4
20
4
7
8
12-Dec-2005
Page 214 of 896
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