Ross Sea Region Soil Sites
268000
268
31-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains, on the West side of the Robert Scott Glacier on the Cox Peaks range
Soil weathering examination
Nilsen Plateau
B&W Pro
No
-153.8080
-86.0050
86deg 0.3'S
153deg 48.5'E
Near the summit of a peak on a ridge on the Cox Peaks range, about 10km WSW from Mt Crockett, a small ledge on a steep slope adjacent to and just below a steep rock |
outcrop |
22
E
1,400
Argillaceous sediments, dark Precambrian acid volcanics and granites occur in the Cox Peaks range; the sediments are intruded by granites
Adjacent snow pockets; adjacent snow thaw on surfaces of some dark coloured rocks and |
melt water in a few rock hollows |
35
Central Mountain
Fragmented dark acid volcanic rock in fractured bedrock
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Rocks are fragmented into flattish flaggy forms; there is distinct staining on many rock surfaces and salt accumulations beneath some boulders
Nil
268a 0-1cm
101
brown (10YR 5/3) sandy pebble gravel
102
loose
103
rock particles subrounded to angular with many distinctly stained
104
salt encrustations on some rock faces
105
sharp boundary,
268b 1-3cm
201
pale yellow (5Y 7/4) sandy gravel
202
firmly cohesive
203
thick salt cemented patches under some clasts
204
well developed vesicular structure
205
rock particles rounded to angular and moderately stained
206
distinct boundary,
268c 3-13cm
301
yellow (5Y 8/8 - 2.5Y 8/8) sandy gravel
302
weakly cohesive
303
moderately developed vesicular structure
304
rock particles angular and weakly stained,
268d
401
salts from under stones,
268e
501
stained rock particles
Yes
a,b,c,e
0
3
Soluble Salt |
Concentration |
26800001
81.00
59.00
26.70
10.20
1.00
1.00
0.90
0.70
0.31
26800002
67.00
36.70
23.50
17.40
3.60
6.10
4.60
1.80
6.00
26800003
44.00
35.70
12.70
11.20
3.50
4.90
5.20
10.80
16.00
26800004
26800005
26800001
5.50
0.11
0.20
0.60
1.20
0.00
1.00
0.01
26800002
4.00
3.60
11.00
1.30
27.00
0.40
94.00
0.30
26800003
4.20
2.20
3.00
17.00
6.10
0.20
25.00
1.00
26800004
26800005
26800001
60
5
5
5
25
26800002
65
15
5
15
26800003
100
26800004
26800005
12-Dec-2005
Page 225 of 896
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