Near the summit of a peak on a ridge on the Cox Peaks range, about 10km WSW from Mt Crockett, a small ledge on a steep slope adjacent to and just below a steep rock outcrop
Altitude:
1400 m
Aspect:
E
Slope:
22 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
86° 0.3' S 153° 228.48' W
86° 0.5' S 153° 48' W
Latitude Longitude DD
-86.0050 -153.80800
-86.008 -153.800
Latitude longitude precision DD
0.0008 0.00008
0.004 0.008
Locality
Scott Glacier region, southern Trans-antarctic Mountains, on the West side of the Robert Scott Glacier on the Cox Peaks range
Survey
Nilsen Plateau
Climate
Soil climate zone:
Central Mountain
Estimated mean annual temperature:
-35
°C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Geology
Geological setting:
Argillaceous sediments, dark Precambrian acid volcanics and granites occur in the Cox Peaks range; the sediments are intruded by granites
Patterned ground:
Nil
Surface weathering or surface features:
Rocks are fragmented into flattish flaggy forms; there is distinct staining on many rock surfaces and salt accumulations beneath some boulders
Soil
Soil parent material:
Fragmented dark acid volcanic rock in fractured bedrock
Adjacent snow pockets; adjacent snow thaw on surfaces of some dark coloured rocks and melt water in a few rock hollows
Biological activity:
Nil observed
Profile Description
Horizon
Depth
Description
268d
salts from under stones,
268e
stained rock particles
268a
0
–
1
cm
brown (10YR 5/3) sandy pebble gravel; loose; rock particles subrounded to angular with many distinctly stained; salt encrustations on some rock faces; sharp boundary,
268b
1
–
3
cm
pale yellow (5Y 7/4) sandy gravel; firmly cohesive; thick salt cemented patches under some clasts; well developed vesicular structure; rock particles rounded to angular and moderately stained; distinct boundary,
268c
3
–
11
cm
yellow (5Y 8/8 - 2.5Y 8/8) sandy gravel; weakly cohesive; moderately developed vesicular structure; rock particles angular and weakly stained,