Ross Sea Region Soil Sites
232000
232
30-Nov-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains in the La Gorce Mountains
Soil weathering examination
US Geological Survey 1:250 000 1968, Mount Blackburn
B&W Lscp
No
-148.2670
-86.6250
86deg 37.5'S
148deg 16.0'E
La Gorce Mountains at the northwestern end near Mt Gjertsen and from a site on the ridgetop near the northern summit ridge knoll
3
N
1,950
Quartzites and quartzitic greywackes of the La Gorce Formation are common in the area; porphyritic volcanic rocks are also present
Scattered snow patches but no indications of snow thaw or liquid water
-40
Inland Mountain
Fragmented dark porphyritic bedrock with locally derived fines
Nil at site
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Some scattered salts; moderate surface staining
Nil
232a 0-10cm
101
light yellowish brown (10YR 6/4) sandy to silty pebbly to bouldery gravel
102
weakly to moderately cohesive
103
patchy well developed vesicular structure
104
scattered small salt flecks
105
distinct boundary, on fragmented bedrock
Yes
a
Dry-frozen
10
3
(>10cm)
| Soluble Salt |
| Concentration |
23200001
80.00
23200001
calcite/gypsum
23200001
12-Dec-2005
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