Ross Sea Region Soil Sites
236000
236
5-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains at the southern end of the Watson Escarpment
Soil weathering examination
US Geological Survey 1:250 000 1968, Mount Blackburn
B&W Lscp
No
-148.4670
-86.3333
86deg 20.0'S
148deg 28.0'E
Approximately 2.5km NNE of Mt Czegka on the head wall of a small dry cirque valley, about one third way up thee valley head surface
27
E
1,850
The deposit on the valley sides and head wall are dominantly local slope drift materials from local outcrops
Scattered snow patches but no liquid moisture
-35
Inland Mountain
Partly weathered sandy to silty gravel slope detritus from granitic rocks
Nil observed
Weakly developed broad nets
SURFACE WEATHERING or |
SURFACE FEATURES |
Rocks mainly subangular with some subrounded; distinct surface oxidation; some exfoliation and granular disintegration
Nil
236a 0-5cm
101
pale brown to light yellowish brown (10YR 6/3 - 2.5Y 6/4) sandy gravel
102
weakly cohesive
103
rock particles sub rounded to subangular with some weakly stained
104
distinct boundary,
236b 5-25cm
201
pale brown to light yellowish brown (10YR 6/3 - 2.5Y 6/4) sandy to silty gravel
202
loose
203
rock particles subrounded to subangular with some partly altered
204
sharp boundary,
236c 25-30cm
301
ice cemented gravel
Yes
a,b,c
ice-cemented
25
3
(25cm)
Soluble Salt |
Concentration |
23600001
73.00
23600002
70.00
23600003
53.00
23600001
23600002
23600003
23600001
23600002
23600003
12-Dec-2005
Page 193 of 896
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