Ross Sea Region Soil Sites
671000
671
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 at the centre of |
| one of three plots where LiCl was originally applied in 1989/90 |
2
SE
100
cf. Notes for GEOLAND below
(2o)
3
16.0
12
3.6
26
0.5
30
-1.3
| 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
some small 1/2 cm lichen patches
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 |
671a 2-0cm
101
surface pavement of basalt pebbles, cobbles and boulders with some small granitic pebbles and granules
102
loose
103
subrounded to subangular
104
unweathered,
671b 0-6cm
201
light olive grey (5Y 6/2) granular pebbly gravel
202
loose to weakly cohesive with weak vesicular structure and a distinct surface crust
203
rock particles subrounded to subangular and unweathered
204
distinct boundary,
671c 6-18cm
301
light olive grey to grey to dark grey (5Y 6/2-6/1) bouldery granular pebble gravel
302
loose to weakly cohesive
303
rock particles mainly subangular and unweathered
304
distinct boundary,
671d 18-28cm
401
light olive grey to grey to dark grey (5Y 6/2- 6/1) granular pebble gravel
402
moist and moderately cohesive
403
rock particles subrounded to subangular and unweathered
404
sharp boundary,
671e 28-35cm
501
pale olive (5Y 6/3) silty pebble gravel
502
very hard and ice cemented
503
rock particles subangular and subrounded,
671f 35-51cm
601
]
671g 51-60cm
701
] drill core
702
dark grey (10YR 4/1) cobbly to bouldery
671h 60-72cm
801
] basaltic gravel and bedrock
802
hard and ice-cemented.
671i 72-85cm
901
]
671j 85-102cm
1001
]
671k 102-115cm
1101
] temperature -6.6oC
yes
a,b,c,d,e,f,g,h,i,j,k
a,b,c,d,e,f,g,h,i,j,k
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 |
67100001
671a
2-0cm
-2
0
0.90
none
67100002
671b
0-6cm
0
6
2.90
none
67100003
671c
6-18cm
6
18
3.10
none
67100004
671d
18-28cm
18
28
4.70
none
67100005
671e
28-35cm
28
35
10.40
none
67100006
671f
35-51cm
35
51
102.80
none
67100007
671g
51-60cm
51
60
18.10
none
67100008
671h
60-72cm
60
72
20.20
none
67100009
671i
72-85cm
72
85
26.10
none
67100010
671j
85-102cm
85
102
9.50
none
67100011
671k
102-115cm
102
115
18.60
none
67100001
12.00
0.90
67100002
8.10
2.90
67100003
0.90
3.10
67100004
4.70
67100005
10.40
67100006
102.80
67100007
18.10
67100008
20.20
67100009
26.10
67100010
9.50
67100011
18.60
67100001
67100002
67100003
67100004
67100005
67100006
67100007
67100008
67100009
67100010
67100011
67100001
67100002
67100003
67100004
67100005
67100006
67100007
67100008
67100009
67100010
67100011
12-Dec-2005
Page 629 of 896
671
