Ross Sea Region Soil Sites
259000
259
26-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains, on the east side of the Robert Scott Glacier
Soil weathering examination
Nilsen Plateau
No
-150.7830
-86.0333
86deg 2.0'S
150deg 47.0'E
At the northern end of the Organ Pipes Peaks on a granite outcrops forming low hills at the entrance of the Zanuck Basin; approximately 150m above the glacier level
7
N
1,300
The Organ Pipes form a ridge of spectacular peaks from granite intrusives; glacial retreat has left a small amount of till
Patchy snow cover is present; the soil surface is slightly crusty suggesting some occasional |
soil moistening |
30
Central Mountain
Fragmented granitic detritus accumulated between rock outcrops with some fragments of dolerite
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
On lower slopes at the edge of the ice, the rocks are fresh and unweathered but at higher elevation there is distinct signs of surface weathering;
Nil
259a 5-0cm
101
surface granular pebble and cobble gravel
102
weakly but distinctly stained
103
rock particles subangular and subrounded
259b 0-4cm
201
pale olive (5Y 6/3) sandy pebble gravel
202
loose to weakly cohesive
203
salts beneath some surface stones
204
weakly developed vesicular structure
205
rock particles angular to subangular and unstained to very weakly stained
206
indistinct boundary,
259c 4-20cm
301
light grey (5Y 7/2) sandy pebble gravel
302
loose
303
rock particles angular and unstained
304
259d 0-4cm
401
salts encrusting some surface stones and stones within the soil profile
Yes
a,b,c,d
20
2
(>20cm)
Soluble Salt |
Concentration |
25900001
14.00
25900002
45.00
25900003
43.00
25900004
25900001
25900002
25900003
25900004
25900001
25900002
25900003
25900004
12-Dec-2005
Page 216 of 896
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