Ross Sea Region Soil Sites
254000
254
18-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains, in mountains just south of the Albanus Glacier
Soil weathering examination
US Geological Survey 1:250 000 1968, Wisconsin Range
CS Lscp
No
-149.4170
-85.9300
85deg 55.8'S
149deg 25.0'E
On the narrow bouldery ridge between Mt Andrews and Mt Danforth on a lower small peak on the ridge crest
0
Nil
1,650
A complex of rock types is present on the ridge surface; dark volcanics, granites and quartz outcrops
Many snow patches on the ridge surface; some thaw from snow on dark coloured rocks
-35
Central Mountain
Fragmented dark volcanic rock possibly of the Wyatt Formation; soil material is only between rock outcrops
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
| Rock outcrops are strongly stained with alteration to >1cm; rocks are dominantly angular; some salts between rock fragments but none beneath surface |
| clasts |
Nil
254a 0-8cm
101
strong brown (10YR 5/8) pebble gravel
102
| loose to weakly cohesive with weakly developed vesicular structure and some fines firmly adhering to rock |
| particles |
103
some fine diffuse salts
104
rock particles angular with many strongly stained and moderately altered
105
indistinct boundary,
254b 8-35cm
201
olive yellow (2.5Y 6/6) sandy to silty pebble gravel
202
loose
203
a few salt precipitations on rock faces
204
rock particles angular and dominantly unstained and unaltered
Yes
a,b
Dry-frozen
35
4
(>35cm)
| Soluble Salt |
| Concentration |
25400001
38.00
25400002
34.00
25400001
25400002
25400001
25400002
12-Dec-2005
Page 211 of 896
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