Ross Sea Region Soil Sites
740000
740
6-Jan-1994
IBC, GGC, DSS
Pram Point, Scott Base
For determination of sources and levels of soil contaminants around Scott Base
not recorded
pro CS & Lscp
No
166.7670
-77.8500
77deg 51.0'S
-166deg -46.0'E
cf. Notes for DESCR below
10
SE
9
cf. Notes for GEOLAND below
(10o)
Xerous to subxerous; the soil is dry at the surface but moist throughout below
-18
Coastal mountain
Fill materials, somewhat compacted derived from soil and fragmented bedrock and built up for land levelling;
None observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
The ground surface has been mechanically smoothed and lacks normal pavement and other features; some small patches of salt efflorescences are present; |
numerous fragments of foreign materials are present |
Close to the site of the previous Scott Base garage and generator building; the ground surface has been subsequently smoothed and reshaped
740a 1-0cm
101
loose and dry granular and pebbly surface
102
many fragments of foreign material,
740b 0-1cm
201
greyish brown ( 2.5Y 5/2 - 10YR 5/2) sandy pebble gravel
202
loose
203
dry
204
assorted particles of foreign matter present
205
distinct boundary,
740c 1-12cm
301
dark greyish brown to dark grey (10YR 4/2 - 4/1) sandy gravel
302
slightly moist
303
very compact
304
assorted particles of foreign material present
305
distinct boundary,
740d 12-40cm
401
very dark greyish brown to very dark brown (10YR 3/2 -3/1) bouldery gravel
402
moderately compacted and cohesive
403
moist
404
strong smell of fuel present
405
indistinct boundary,
740e 40-50cm
501
dark brown (10YR 3/2) bouldery gravel
502
moderately compact
503
on ice-cemented ground
Yes (IGNS)
Ice-cemented
50
1
Descr
SS5 T1; this site is located 25.5 m south of the stairway to the main entrance to Scott Base; the ground surface is a concave and moderately sloping being |
adjacent to or at the site of the old Scott Base garage; the area is used for vehicle traffic access to the base |
Geoland
The materials comprise volcanics of the McMurdo Volcanics Formation mainly as scoriaceous lava flows; the surface materials are a thin cover of mainly |
fractured bedrock with addition of some glacially derived granular and pebble clasts from outside the immediate area; the volcanic bedrock has been |
considerably fractured by patterned ground 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 |
74000001
740a
1-0cm
-1
0
none
74000002
740b
0-1cm
0
1
none
74000003
740c
1-12cm
1
12
none
74000004
740d
12-40cm
12
40
none
74000005
740e
40-50cm
40
50
none
74000001
39.00
1.30
74000002
44.00
2.60
74000003
59.00
4.50
74000004
49.00
6.10
74000005
50.00
4.30
74000006
61.00
4.70
74000001
8.60
2.44
74000002
8.80
1.24
74000003
9.20
0.50
74000004
9.70
0.48
74000005
9.60
0.49
74000006
9.60
0.68
74000001
74000002
74000003
74000004
74000005
74000006
12-Dec-2005
Page 698 of 896
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