On the narrow bouldery ridge between Mt Andrews and Mt Danforth on a lower small peak on the ridge crest
Altitude:
1650 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
85° 55.8' S 149° 25' W
85° 55.8' S 149° 35' W
Latitude Longitude DD
-85.9300 -149.42
-85.9300 -149.58
Latitude longitude precision DD
0.0008 0.04
0.0008 0.04
Locality
Scott Glacier region, southern Trans-antarctic Mountains, in mountains just south of the Albanus Glacier
Survey
US Geological Survey 1:250 000 1968, Wisconsin Range
Climate
Soil climate zone:
Central Mountain
Estimated mean annual temperature:
-35
°C
Frozen ground depth:
35 > cm
Frozen type:
Dry-frozen
Frozen comment:
>35cm
Geology
Geological setting:
A complex of rock types is present on the ridge surface; dark volcanics, granites and quartz outcrops
Patterned ground:
Nil
Surface weathering or surface features:
Rock outcrops are strongly stained with alteration to >1cm; rocks are dominantly angular; some salts between rock fragments but none beneath surface clasts
Soil
Soil parent material:
Fragmented dark volcanic rock possibly of the Wyatt Formation; soil material is only between rock outcrops
Many snow patches on the ridge surface; some thaw from snow on dark coloured rocks
Biological activity:
Nil observed
Profile Description
Horizon
Depth
Description
254a
0 – 5 cm
strong brown (10YR 5/8) pebble gravel; loose to weakly cohesive with weakly developed vesicular structure and some fines firmly adhering to rock particles; some fine diffuse salts; rock particles angular with many strongly stained and moderately altered; indistinct boundary,
254b
10 – 15 cm
olive yellow (2.5Y 6/6) sandy to silty pebble gravel; loose; a few salt precipitations on rock faces; rock particles angular and dominantly unstained and unaltered