Ross Sea Region Soil Sites
676000
676
23-Dec-1992
IBC, GGC
Vanda Station, Wright Valley at the eastern end of Lake Vanda
| assessment of environmental impacts from past human activities at Vanda Station; a site which has probably |
| undergone little disturbance and was sampled for comparison with obviously disturbed sites |
not recorded
No
166.7500
-75.8333
75deg 50.0'S
-166deg -45.0'E
| approximately 80m S of the main Vanda Station building on the bottom of a sloping gully; the site is similar to site 673 but is 30m to the SW and is away from the greywater |
| disposal area; |
6
NE
93
cf. Notes for GEOLAND below
(6o)
xerous; the soil surface is occasionally moistened by summer snowfall
-20
central mountain
wind sorted granular sand derived from disaggregation of granodiorite
| SURFACE WEATHERING or |
| SURFACE FEATURES |
granular disintegration of bedrock outcrops
no evidence of direct disposal of wastes but the site has been disturbed by vehicle trafficking and other human activities
676a 0-10cm
101
light olive brown (2.5Y 5/4) granular sand
102
loose
103
indistinct boundary,
676b 10-28cm
201
light olive brown (2.5Y 5/4) sandy granular gravel
202
loose
203
sharp boundary, on massive unweathered granodiorite.
yes
a,b
dry frozen
35
1
(~35cm)
Geoland
| the rocks of the area are granodiorites that have been cut with lamprophyre dykes and form a strongly undulating ridge and gully topography as a result of ice |
| over riding from down-valley and up-valley glaciations and to a lesser extent, subaerial weathering; at this site, bedrock is massive rather than fractured |
| granodiorite with a shallow cover of fine fragmental material derived mainly from granular disintegration of the granodiorite |
| Soluble Salt |
| Concentration |
67600001
676a
0-10cm
0
10
none
67600002
676b
10-28cm
10
28
none
67600001
77.00
0.30
67600002
78.00
0.50
67600001
7.80
0.56
0.88
1.25
0.37
0.10
0.86
1.45
0.04
67600002
7.60
0.49
1.00
0.75
0.33
0.10
0.79
1.04
0.03
67600001
67600002
12-Dec-2005
Page 634 of 896
676
