Ross Sea Region Soil Sites
142000
142
23-Jan-1965
IBC, GGC
Victoria Land, Trans-antarctic Mountains; in Upper Victoria Valley, part of the McMurdo Sound Dry Valley system
Soil characterisation
USGS 1:250 000 1986; Ross Island and Vicinity, Antarctica
CS Lscp
No
161.0670
-77.3250
77deg 19.5'S
-161deg -4.0'E
Approximately 1km NNW of Lake Vashka, on a small bench on the valley side; near the edge of a bluff on a small spur at an outcrop of granodiorite
6
SE
900
Granite Harbour Intrusives (granites and granodiorites) outcrop in places between Ferrar Dolerite sills
(6o)
Xerous to subxerous; a dry site with no surface snow accumulations
-25
Central mountain
Bouldery granodiorite felsenmeer with some fine material between cracks in the rocks; includes some dolerite from outcrops on slopes above
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
| Granodiorite bedrock has been fractured by frost weathering; boulders are is mainly flattish and flaggy; some salt accumulations beneath some surface |
| stones; some dolerite cobbles |
Nil
142a 0-3cm
201
greyish brown to light olive brown (2.5Y 5/2 - 5/4) granular gravel
202
moderately cohesive
203
moderately developed vesicular structure
204
rock particles subrounded and subangular and weakly stained
205
sharp boundary,
142b 3-30cm
301
light grey (2.5Y 7/2) pebbly granular gravel
302
loose
303
rock particles angular to subangular and unstained
304
granodiorite clasts showing some surface disaggregation, on granodiorite bedrock
3-0cm
101
surface granodiorite pebbles, cobbles and boulders
102
subangular to subrounded and weakly stained,
Yes
a,b
0
2
| Soluble Salt |
| Concentration |
14200001
142a
0-1cm
0
1
none
14200002
142b
15-30cm
15
30
none
12-Dec-2005
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