Ross Sea Region Soil Sites
49000
49
21-Nov-1964
IBC, GGC
Inexpressible Island, Terra Nova Bay
soil characterisation
USGS 1:250 000 1968; Mt Melbourne SS 58-60/9
B&W Pro
No
163.7500
-74.9000
74deg 54.0'S
-163deg -45.0'E
The floor of a small depression and site of a former small frozen lake, on a low undulating surface approximately 1km form the NE coast of Inexpressible Island
0
Nil
35
Some depressions on land below about 45m above sea level are occupied by small frozen lakes, others are dry but mark the sites of former small lakes
(0o)
Oceanic subxerous; no liquid water present but the site may become wet with surface water |
ponding in some years when precipitation or thawing are greater |
-17
Coastal Antarctic
Lake bed sediment
Some dried algal accumulations around the edge of the depression
Very weak initial development of small nets
SURFACE WEATHERING or |
SURFACE FEATURES |
Subdued surface; pebbles coated with silty fines
Nil
0-4cm
101
light olive grey (5Y 6/2) pebbly silt
102
cohesive
103
vesicular structure
104
rock fragments subrounded and unstained
105
abrupt boundary,
49a 4-18cm
201
dark olive grey to dark grey (moist 5Y 3/2-4/1) pebbly silt
202
very firmly frosted
203
rock fragments subrounded and subangular
204
sharp boundary, on frozen ground
Yes
a
Hard ice-cemented
18
1
(18cm)
Soluble Salt |
Concentration |
4900001
49a
4-18cm
4
18
none
12-Dec-2005
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