Ross Sea Region Soil Sites
735000
735
3-Jan-1994
IBC,GGC,MRB,DIC
Pram Point, Scott Base
Soil moisture, permafrost monitoring and soil climate measurement in a disturbed site with additional soil |
added |
not recorded
CS Lscp
No
166.7670
-77.8500
77deg 51.0'S
-166deg -46.0'E
cf. Notes for DESCR below
3
SE
75
cf. Notes for GEOLAND below
(3o)
(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; ~25cm of disturbed soil has been added to the site giving 50cm of unfrozen soil above frozen ground
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 |
None as the soil surface has been disturbed by the addition of nearby unfrozen soil
None but current disturbance included addition of soil at the previouly undisturbed site
735a 0-50cm
101
disturbed soil
735b 50-64cm
201
top of frozen ground
735c 64-81cm
301
735d 81-98cm
401
735e 98-119cm
501
735f 119-143cm
601
No
Hard frozen and ice cemented with segregated ice
50
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 northern end or disturbed part of an experimental area on fill material |
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 |
73500001
735a
0-50cm
0
50
54.00
3.23
6.00
none
73500002
735b
50-64cm
50
64
0.53
none
73500003
735c
64-81cm
64
81
2.18
6.00
14.51
29.00
0.32
none
73500004
735d
81-98cm
81
98
2.79
10.00
27.03
54.00
0.75
none
73500005
735e
98-119cm
98
119
1.87
42.00
33.92
68.00
0.63
none
73500006
735f
119-143cm
119
143
1.93
37.00
25.08
50.00
0.48
none
73500001
54.00
3.23
73500002
73500003
6.00
14.51
73500004
10.00
27.03
73500005
42.00
33.92
73500006
37.00
25.08
73500001
73500002
73500003
73500004
73500005
73500006
73500001
73500002
73500003
73500004
73500005
73500006
12-Dec-2005
Page 693 of 896
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