Approximately 3km NNE of Mt Czegka on a valley mouth ridge of moraine; the innermost, up-valley moraine loop on the ridge crest approximately 150m above the low valley bottom moraine surface
Altitude:
1750 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
86° 20' S 148° 28' W
86° 20' S 148° 28' W
Latitude Longitude DD
-86.33 -148.467
-86.33 -148.467
Latitude longitude precision DD
0.08 0.008
0.08 0.008
Locality
Scott Glacier region, southern Trans-antarctic Mountains at the southern end of the Watson Escarpment
Survey
US Geological Survey 1:250 000 1968, Mount Blackburn
Climate
Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-35
°C
Frozen ground depth:
45 > cm
Frozen type:
Dry frozen
Frozen comment:
>45cm
Geology
Geological setting:
Young moraine in the basin floor shows clear evidence of advance and recession; surfaces at higher elevation also show evidence of earlier glacial advance and retreat stages with an expanded ice sheet advancing into an empty side valley leaving two valley mouth moraine ridges; the innermost loop shows more weathering than the outer loop
Patterned ground:
Nil
Surface weathering or surface features:
Some large surface boulders 1.5 to 2.5m; some rounding and surface exfoliation and distinct staining; a few salts beneath some surface clasts
Soil
Soil parent material:
Partly weathered mixed lithology till but dominantly granitic with some dolerite
pale yellow to light grey (2.5Y 7/4 - 2.5Y 7/2) cobbly to granular silty sand; loose; rock particles subangular to subrounded and unstained; distinct boundary,
235b
3 – 10 cm
pale yellow (2.5Y 7/4) cobbly to granular silty sand; loose; few scattered salt flecks; rock particles subangular to subrounded and unstained; indistinct boundary,
235c
30 – 35 cm
pale yellow to pale olive (5Y 7/3 - 6/3) silty bouldery gravel; weakly cohesive; rock particles dominantly angular and unstained; indistinct boundary, on compact silty bouldery to pebbly gravel