On an east-west trending part of Ackerman Ridge about 300m above the Scott Glacier near the edge of a basin on the ridge
Altitude:
2050 m
Aspect:
SW
Slope:
4 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
86° 33.6' S 148° 06' W
86° 33.6' S 148° 06' W
Latitude Longitude DD
-86.5600 -148.100
-86.5600 -148.100
Latitude longitude precision DD
0.0008 0.008
0.0008 0.008
Locality
Scott Glacier region, southern Trans-antarctic Mountains on Ackerman Ridge
Survey
US Geological Survey 1:250 000, 1968, Mount Blackburn
Climate
Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-40
°C
Frozen ground depth:
60 > cm
Frozen type:
Dry frozen
Frozen comment:
>60cm
Geology
Geological setting:
Some of the higher slopes of Ackerman Ridge have old moraine deposits, judged by increased weathering; local rock appears to be granite
Patterned ground:
Nil
Surface weathering or surface features:
Rounding and surface oxidation of many boulders; undersides unstained indicating surface stability; some surface crumbling and spalling; pavement moderately developed
Soil
Soil parent material:
Granitic bouldery till and fines with a rock flour consistence; some boulders up to 4m but most around 0.3m
Scattered small snow patches; weak soil crust in places suggests occasional surface moistening
Biological activity:
Nil Observed
Profile Description
Horizon
Depth
Description
213a
0 – 12 cm
light yellowish brown (10YR 6/4) sandy to silty cobble and boulder gravel; loose but surface is weakly cohesive; rock particles mainly subrounded and unstained; indistinct boundary,
213b
18 – 25 cm
light yellowish brown to brownish yellow (10YR 6/4 - 6/6) bouldery sandy to silty gravel; loose to weakly cohesive; few salt flecks with small accumulations round some rocks; larger clasts rounded to subrounded and some boulders with a weak surface oxidation; indistinct boundary,
213c
46 – 60 cm
light yellowish brown to pale yellow (10YR 6/4 - 2.5YR 7/4) bouldery sandy to silty gravel; loose; rock particles subrounded and unstained; indistinct boundary,