Ross Sea Region Soil Sites
732000
732
3-Jan-1994
IBC,GGC,MRB,DIC
Pram Point, Scott Base
Soil moisture, permafrost monitoring and soil climate measurement
not recorded
CS Lscp
No
166.7670
-77.8500
77deg 51.0'S
-166deg -46.0'E
cf. Notes for DESCR below
5
SE
75
cf. Notes for GEOLAND below
(5o)
(m .. 75m)
0
17.0
surface
Xerous to subxerous; soil is moist below the surface; some moisture derived from small |
transient snow banks |
-18
Coastal mountain
Fragmented bouldery volcanic bedrock with some additions of glaciogenic finer materials, in part with some modification by slope drift processes; surface of the soil to approximately 30cm depth was removed by bulldozer
A few small patches of yellow lichen and some moss in the general vicinity
Weakly developed and without distinctive trough expression or well developed net pattern
SURFACE WEATHERING or |
SURFACE FEATURES |
Surface clasts show some slight wind polsh but no surface oxidation; pavement between larger clasts is predominantly granular- pebble sized; some thin |
surface salt accumulations are formed near patches of snow melt |
No evidence of past mechanical disturbance at the immediate trial site area but moderate foot traffic disturbance is very likely; present disturbance includes |
the presence of numerous particles of introduced organic and inorganic materials |
732a 0-5cm
101
732b 5-10cm
201
732c 10-17cm
301
732d 17-24cm
401
732e 24-30cm
501
732f 30-48cm
601
top of frozen ground
732g 48-78cm
701
732h 78-84cm
801
732i 84-112cm
901
No
Hard frozen and ice cemented with segregated ice
30
1
Descr
A gently sloping area forming a small bench on a moderately steep slope between Crater Hill and the east coast of Ross Island approximately 150m northwest |
from the Scott Base buildings; drill hole and access tube site located in the centre of the southern end or the undisturbed part of an experimental area |
Geoland
The deposit comprises volcanics of the McMurdo Volcanics Formation mainly as scoriaceous flows; the surface materials are a thin cover of mainly fractured |
bedrock with addition of glacially derived granular and pebble clasts from outside the immediate area; the volcanic bedrock has been considerably fractured by |
freeze thaw; the surface age is probably very late Pleistocene (Ross Sea Glaciation) having been modified by McMurdo Sound filling glacial ice |
Soluble Salt |
Concentration |
73200001
732a
0-5cm
0
5
10.00
1.75
1.00
none
73200002
732b
5-10cm
5
10
57.00
3.94
5.00
none
73200003
732c
10-17cm
10
17
51.00
6.59
8.00
none
73200004
732d
17-24cm
17
24
50.00
7.55
10.00
none
73200005
732e
24-30cm
24
30
38.00
9.38
65.00
none
73200006
732f
30-48cm
30
48
1.58
31.00
30.54
76.00
0.48
none
73200007
732g
48-78cm
48
78
1.68
26.00
24.93
51.00
0.42
none
73200008
732h
78-84cm
78
84
2.80
31.00
25.99
67.00
0.73
none
73200009
732i
84-112cm
84
112
1.90
37.00
19.44
31.00
0.37
none
73200001
66.00
1.75
73200002
61.00
3.94
73200003
62.00
6.59
73200004
61.00
7.55
73200005
61.00
9.38
73200006
79.00
30.54
73200007
72.00
24.93
73200008
62.00
25.99
73200009
21.00
19.44
73200001
73200002
73200003
73200004
73200005
73200006
73200007
73200008
73200009
73200001
73200002
73200003
73200004
73200005
73200006
73200007
73200008
73200009
12-Dec-2005
Page 690 of 896
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