Ross Sea Region Soil Sites
668000
668
19-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 3m |
downslope from the initial 1989/90 site of application of LiCl |
2
SE
100
cf. Notes for GEOLAND below
(2o)
0
5.3
surface
35
0.0
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 |
668 1-0cm
101
surface pavement of loose gravel,
668a 0-7cm
201
light olive grey (5Y 6/3) granule to cobbly gravel
202
weakly cohesive with a weakly developed surface crust
203
smaller rock particles subrounded and unstained and larger particles subangular and unstained
204
indistinct boundary,
668b 7-18cm
301
light olive grey (5Y 6/3) to cobble gravel
302
slightly moist
303
loose
304
rock particles subrounded to subangular and unstained
305
indistinct boundary,
668c 18-28cm
401
light olive grey to pale olive (5Y 6/2-6/3) sandy granule to cobble gravel
402
moderately cohesive and slightly frosted
403
rock particles subangular to subrounded and unstained
404
sharp boundary,
668d 28-35cm
501
pale olive (5Y 6/3) granular silty gravel
502
extremely hard and ice-cemented
503
rock particles subangular to subrounded and unstained,
668e 35-53cm
601
]
668f 53-64cm
701
]
668g 64-80cm
801
] drill core
802
dark grey (10YR 4/1) bouldery basaltic
668h 80-88cm
901
] gravel and bedrock
902
very hard and ice cemented
903
668i 88-100cm
1001
] temperature at 100cm was -4oC
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 |
66800001
668
1-0cm
-1
0
none
66800002
668a
0-7cm
0
7
2.90
none
66800003
668b
7-18cm
7
18
4.20
none
66800004
668c
18-28cm
18
28
6.20
none
66800005
668d
28-35cm
28
35
12.70
none
66800006
668e
35-53cm
35
53
42.00
none
66800007
668f
53-64cm
53
64
28.70
none
66800008
668g
64-80cm
64
80
30.90
none
66800009
668h
80-88cm
80
88
18.10
none
66800010
668i
88-100cm
88
100
16.70
none
66800001
0.70
66800002
4.20
66800003
6.20
66800004
12.70
66800005
42.00
66800006
28.70
66800007
30.90
66800008
18.10
66800009
16.70
66800001
66800002
66800003
66800004
66800005
66800006
66800007
66800008
66800009
66800001
66800002
66800003
66800004
66800005
66800006
66800007
66800008
66800009
12-Dec-2005
Page 626 of 896
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