Ross Sea Region Soil Sites
33000
33
16-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 & CS Lscp
No
163.7170
-74.9000
74deg 54.0'S
-163deg -43.0'E
On a gently sloping beach surface, at the northern end of the east side of Inexpressible Island
2
E
7
Granitic till and granitic raised beach gravels, derived from Granite Harbour Intrusives occur extensively; the beach deposits are well sorted and form a series of distinct levels |
with gently sloping treads and steeper bouldery risers |
(2o)
Oceanic subxerous, little liquid water available at present, moisture source occasional |
snowmelt |
-17
coastal Antarctic
Sandy pebble and cobble gravel beach deposits
Penguins and seals
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Most surface rocks are well rounded due to wave action
Nil
3-0cm
101
surface pebbles and cobbles
102
well rounded but occasional weak ventiform shape
103
unstained
104
sharp boundary,
33a 0-5cm
201
light greyish brown (2.5Y 6/2) sandy pebble gravel
202
loose
203
rock fragments mainly subrounded
204
occasional basalt clasts,
33b 5-18cm
301
light yellowish brown (2.5Y 6/4) sandy pebble and cobble gravel
302
loose
303
rock fragments mainly subrounded
304
sharp boundary, on light yellowish brown (2.5Y 6/2) very firm, ice cemented gravelly sand
Yes
a,b,c
Hard ice-cemented
18
1
(18cm)
Soluble Salt |
Concentration |
3300001
33a
0-5cm
0
5
none
3300002
33b
5-18cm
5
18
none
12-Dec-2005
Page 33 of 896
33