Ross Sea Region Soil Sites
43000
43
17-Nov-1964
IBC, GGC
Inexpressible Island, Terra Nova Bay
Soil characterisation
USGS 1:250 000 1968; Mt Melbourne SS 58-60/9
No
163.7170
-74.9167
74deg 55.0'S
-163deg -43.0'E
a raised flat boulder beach surface on the eastern side of Inexpressible Island, about 3/4km from the coast and 1.5km south of the Scott Expedition snow cave site;
0
Nil
45
cf. Notes for GEOLAND below
(0o)
Oceanic subxerous, snow cover sparse and little liquid water available
-17
Coastal Antarctic
Older granitic boulder beach deposits
Small patches of black lichen on some boulders and a few patches of yellow lichen
Weakly developed small polygons
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Surface boulders mostly rounded to well rounded; some with distinct surface oxide staining; some surface granular disintegration
Nil
43a 0-7cm
201
light brownish grey (2.5Y 6/2) gravelly silty sand
202
loose
203
boulders and pebbles rounded to subrounded and unstained
204
indistinct boundary,
43b 7-15cm
301
light brownish grey (2.5Y 6/2) gravelly silty sand
302
slightly cohesive and slightly frosted
303
boulders and pebbles rounded to subrounded and unstained
304
abrupt boundary, on frozen ground
7-0cm
101
surface boulders and pebbles
102
boulders partly protruding from underlying soil
103
rounded to subrounded
104
some with surface oxide staining
105
thin white salt deposits beneath some boulders,
Yes
a,b
Hard ice-cemented
15
2
(15cm)
Geoland
| Granite Harbour Intrusives outcrop widely in the region; horizontal raised beach surfaces are a common feature on Inexpressible Island with beach deposits at |
| various levels comprising mainly larger granitic boulders on terrace risers and smaller granitic boulders on beach terrace tread surfaces |
| Soluble Salt |
| Concentration |
4300001
43a
0-7cm
0
7
none
4300002
43b
7-15cm
7
15
none
12-Dec-2005
Page 43 of 896
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