Ross Sea Region Soil Sites
734000
734
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
734a 0-50cm
101
disturbed soil
734b 50-67cm
201
top of frozen ground
734c 67-83cm
301
734d 83-90cm
401
734e 90-120cm
501
734f 120-142cm
601
734g 142-155cm
701
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, at the S end 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 |
73400001
734a
0-50cm
0
50
63.00
3.55
7.00
none
73400002
734b
50-67cm
50
67
1.55
54.00
9.73
19.00
0.15
none
73400003
734c
67-83cm
67
83
1.18
63.00
44.68
89.00
0.53
none
73400004
734d
83-90cm
83
90
2.06
55.00
30.25
61.00
0.62
none
73400005
734e
90-120cm
90
120
1.66
37.00
31.27
63.00
0.52
none
73400006
734f
120-142cm
120
142
2.25
36.00
23.77
48.00
0.53
none
73400007
734g
142-155cm
142
155
1.66
35.00
27.68
55.00
0.46
none
73400001
63.00
3.55
73400002
54.00
9.73
73400003
63.00
44.68
73400004
55.00
30.25
73400005
37.00
31.27
73400006
36.00
23.77
73400007
35.00
27.68
73400001
73400002
73400003
73400004
73400005
73400006
73400007
73400001
73400002
73400003
73400004
73400005
73400006
73400007
12-Dec-2005
Page 692 of 896
734