Ross Sea Region Soil Sites
50000
50
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
163.7170
-74.9000
74deg 54.0'S
-163deg -43.0'E
A flattish raised beach surface, about 1km southwest of Evans Cove, midway between a small relict boulder bank and a 5m high boulder beach of the next highest surface
0
Nil
30
cf. Notes for GEOLAND below
(0o)
Oceanic subxerous; no liquid water present and little local snow cover
-17
Coastal Antarctic
Bouldery beach gravels derived from dominantly granitic rocks (Granite Harbour Intrusives)
A few small patches of moss; some lichen on boulders
Weakly developed medium nets with borders marked by large boulders
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Subrounded exfoliating surface boulders; some slight surface staining; crumbling of some coarser textured granites
Nil
50a 5-0cm
101
surface boulders, cobbles, pebbles and sand
102
rounded to subrounded
103
weak surface staining,
50b 0-5cm
201
pale olive (5Y 6/3) cobbly and bouldery gravelly sand
202
loose
203
rock fragments subangular and weakly stained
204
indistinct boundary,
50c 5-23cm
301
pale olive to olive (moist 5Y 6/3-5/3) pebbly gravelly sand
302
loose to weakly frosted
303
rock fragments subrounded to subangular and weakly stained
304
distinct boundary, on frozen ground
Yes
a,b,c
Hard ice-cemented
23
2
(23cm)
Geoland
| A well defined series of raised beaches occur on the northeast and eastern coasts of Inexpressible Island up to about 45m above sea level; some surfaces are well |
| demarcated by the presence of rounded boulders but where there has been active patterned ground movement, demarcation on lithological characteristics is less |
| clear |
| Soluble Salt |
| Concentration |
5000001
50a
5-0cm
-5
0
none
5000002
50b
0-5cm
0
5
none
5000003
50c
5-23cm
5
23
none
12-Dec-2005
Page 50 of 896
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