Ross Sea Region Soil Sites
339000
339
1-Dec-1972
IBC, GGC
Wright Valley, McMurdo Dry Valley region
Rock weathering examination
USGS 1:50,000 Antarctic Topo. Ser. Labyrinth Quadrangle
CS Lsc
No
0.0000
0.0000
0deg 0.0'S
0deg 0.0'E
| A flattish surface near My Freya in the Asgard Range; a slightly undulating old surface of dolerite, probably the upper surface of a sill; dolerite outcrops with variable rock |
| weathering |
0
Nil
2,025
cf. Notes for GEOLAND below
(0o)
Patchy snow cover; no thaw or soil moistening
-35
Inland Mountain
Dolerite bedrock
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
| Jointplane fretting with distinct bedrock rounding giving a strong bouldery cobbled land surface appearance; salts on surfces of some clasts; strong but |
| variable surface staining |
Nil
339 0
101
Rock weathering sample only
102
soil not described
0
Geoland
| Planar high level dolerite surfaces cap ridges as narrow ridgetop remnants; and have not been subject to ice sheet glaciation for a very long time; weathering is |
| mainly along joint planes through continual surface oxidation and removal of oxidised rock surfaces by exfoliation; the weathering rhinds vary in thickness |
| Soluble Salt |
| Concentration |
33900001
33900001
rock
33900001
12-Dec-2005
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