Ross Sea Region Soil Sites
225000
225
28-Nov-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains on the east side of Bartlett Glacier
Soil weathering examination
US Geological Survey 1:250 000, 1968, Nilsen Plateau
CS Lscp
No
-152.3330
-86.4000
86deg 24.0'S
152deg 20.0'E
Table Top, a small peak on the east side of Bartlett Glacier, 13km SE of Mt Gardiner and 9km NW of Mt Denauro; on the east side on a weathered granite outcrop; a knobbly |
surface with patches of residual soil between rocky knolls |
0
Nil
1,900
Granite and dolerite outcrop with oxidised and exfoliated granite occurring on elevated knolls; the surface is clearly much older than those of the lower altitude moraine |
sequences |
Thin patchy snow cover but no liquid snow melt observed
-38
Inland Mountain
Disaggregated fine-grained biotite granite
Nil at site
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Rounded and exfoliated bedrock with distinctly oxidised surfaces; a few scattered pitted dolerite erratics; salts beneath some surface stones
Nil
225a 0-5cm
101
light brownish grey to greyish brown (2.5Y 6/2 - 5/2) micaceous sandy granular gravel
102
loose
103
rock particles subangular with some moderately stained
104
distinct boundary,
225b 5-10cm
201
olive grey (5Y 5/2) micaceous sandy granular gravel
202
loose
203
rock particles subangular with a few weakly stained
204
indistinct boundary,
225c 10-30cm
301
dark grey (5Y 4/1) micaceous sandy granular gravel
302
loose
303
rock particles subangular and unstained
304
sharp boundary on firm but crumbly bedrock
Yes
a,b,c
Dry frozen
30
3
(>30cm)
Soluble Salt |
Concentration |
22500001
64.00
22500002
75.00
22500003
22500001
22500002
22500003
22500001
22500002
22500003
12-Dec-2005
Page 182 of 896
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