Ross Sea Region Soil Sites
670000
670
20-Dec-1992
IBC, GGC
Pram Point near Scott Base
LiCl soil leaching experiment
not recorded
CS Site photo
No
166.7500
-75.8333
75deg 50.0'S
-166deg -45.0'E
| a gently sloping facet of a broad ridge surface formed as a result of volcanic flow debris, situated about 250m upslope and to the NW of Scott Base; this site is situated 2m |
| downslope from the initial 1989/90 site of application of LiCl |
2
SE
100
cf. Notes for GEOLAND below
(2o)
0
10.6
surface
| xerous to subxerous; the site receives annual snowfall much of which blows away or ablates; |
| summer snowfalls may moisten the upper few cm of the soil |
-18
coastal mountain
predominantly fragmented basaltic scoria, probably with minor inclusions of glaciogenic detritus
nil at site but some lichen and small moss patches in the general area
weakly developed
| SURFACE WEATHERING or |
| SURFACE FEATURES |
non to weakly developed
| the site is in an area which is subject to relatively high human impact from walking, cable laying etc; there have been previous disturbances at the sample |
| locality from establishing the leaching trial and subsequent samplings from adjacent plots |
670a 2-0cm
101
surface pavement of pebbly to cobbly gravel
102
some white salt accumulations beneath surface pebbles,
670b 0-5cm
201
light olive grey (5Y 6/3) pebble gravel
202
weakly cohesive with weakly developed vesicular structure and a weakly formed surface crust
203
smaller rock particles subrounded and unstained and larger particles subangular and unstained
204
indistinct boundary,
670c 5-18cm
301
light olive grey (5Y 6/3) slightly silty pebble to cobble gravel
302
slightly moist
303
loose
304
rock particles subrounded to subangular and unstained
305
indistinct boundary,
670d 18-28cm
401
light olive grey (5Y 6/2) slightly silty pebble to cobble gravel
402
moderately cohesive and slightly frosted
403
rock particles subangular to subrounded and unstained
404
sharp boundary,
670e 28-35cm
501
pale olive (5Y 6/3) pebbly silty gravel
502
extremely hard and ice-cemented
503
rock particles subangular and subrounded and unstained,
670f 35-54cm
601
]
670g 54-66cm
701
] drill core
702
dark grey (10YR 4/1) bouldery basaltic
670h 66-83cm
801
] gravel and bedrock, very hard and ice-cemented
802
670i 83-109cm
901
]
yes
a,b,c,d,e,f,g,h,i
hard ice-cemented
28
1
Geoland
| the deposit comprises old scoria flows of the McMurdo Volcanics with the surface rock being fragmented mainly into cobble and boulder sized clasts; |
| commonly found are small rounded pebbles of granitic and sedimentary rocks and these are probably derived from the mainland, having been transported by the |
| former expanded Ross Sea Glacier, and deposited as it retreated from Ross Island |
| Soluble Salt |
| Concentration |
67000001
670a
2-0cm
-2
0
0.60
none
67000002
670b
0-5cm
0
5
1.40
none
67000003
670c
5-18cm
5
18
4.50
none
67000004
670d
18-28cm
18
28
4.80
none
67000005
670e
28-35cm
28
35
9.10
none
67000006
670f
35-54cm
35
54
18.20
none
67000007
670g
54-66cm
54
66
24.20
none
67000008
670h
66-83cm
66
83
19.70
none
67000009
670i
83-109cm
83
109
16.30
none
67000001
0.60
67000002
1.40
67000003
4.50
67000004
4.80
67000005
9.10
67000006
18.20
67000007
24.20
67000008
19.70
67000009
16.30
67000001
67000002
67000003
67000004
67000005
67000006
67000007
67000008
67000009
67000001
67000002
67000003
67000004
67000005
67000006
67000007
67000008
67000009
12-Dec-2005
Page 628 of 896
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