Ross Sea Region Soil Sites
721000
721
30-Dec-1993
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
7
SE
75
cf. Notes for GEOLAND below
(7o)
(m .. 75m)
0
17.0
surface
| Xerous to subxerous; soil is moist below the surface; some moisture derived from small local |
| 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
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 boulder clasts show some slight wind polish but no surface oxidation; pavement between larger clasts is dominantly granular-pebble sized; some |
| thin surface salt accumulations occur near wet patches formed by 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 |
721a 1-0cm
101
721b 0-5cm
201
721c 5-10cm
301
721d 10-15cm
401
721e 15-20cm
501
721f 20-25cm
601
721g 25-36cm
701
721h 36-53cm
801
top of frozen ground
721i 53-66cm
901
721j 66-74cm
1001
721k 74-87cm
1101
721l 87-106cm
1201
721m 106-118cm
1301
721n 118-128cm
1401
No
Hard frozen and ice cemented with segregated ice
36
1
(36cm)
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 southern undisturbed part of an experimental area and near the edge of a small patch |
| of snow |
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 |
72100001
721a
1-0cm
-1
0
23.00
2.71
5.00
none
72100002
721b
0-5cm
0
5
52.00
6.88
14.00
none
72100003
721c
5-10cm
5
10
46.00
8.34
17.00
none
72100004
721d
10-15cm
10
15
44.00
7.31
15.00
none
72100005
721e
15-20cm
15
20
41.00
6.69
13.00
none
72100006
721f
20-25cm
20
25
44.00
6.01
12.00
none
72100007
721g
25-36cm
25
36
2.44
32.00
6.41
13.00
0.16
none
72100008
721h
36-53cm
36
53
1.72
47.00
11.36
23.00
0.20
none
72100009
721i
53-66cm
53
66
1.99
37.00
20.31
41.00
0.40
none
72100010
721j
66-74cm
66
74
1.46
44.00
20.11
40.00
0.29
none
72100011
721k
74-87cm
74
87
2.46
36.00
24.31
49.00
0.60
none
72100012
721l
87-106cm
87
106
2.33
39.00
13.45
27.00
0.31
none
72100013
721m
106-118cm
106
118
1.17
30.00
14.91
30.00
0.18
none
72100014
721n
118-128cm
118
128
3.51
22.00
9.23
18.00
0.32
none
72100001
23.00
2.70
72100002
52.00
6.90
72100003
46.00
8.30
72100004
44.00
7.30
72100005
41.00
6.70
72100006
44.00
6.00
72100007
32.00
6.40
72100008
47.00
11.40
72100009
37.00
20.30
72100010
44.00
20.10
72100011
36.00
24.30
72100012
39.00
13.40
72100013
30.00
14.90
72100014
22.00
9.20
72100001
72100002
72100003
72100004
72100005
72100006
72100007
72100008
72100009
72100010
72100011
72100012
72100013
72100014
72100001
72100002
72100003
72100004
72100005
72100006
72100007
72100008
72100009
72100010
72100011
72100012
72100013
72100014
12-Dec-2005
Page 679 of 896
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