Site Information

Site number:
295
Authors:
IBC, GGC
Date recorded:
1970/01/14
Reason Sampled:
Soil weathering examination
Description:
Brown Peaks on the eastern side of the Amundsen Glacier, at the northern end; from a site on the ridge crest; the site is adjacent to site 294
Altitude:
910 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer IBC GGC
GPS No
Latitude Longitude DMS 85° 33' S 157° 50' W 85° 33' S 157° 50' W
Latitude Longitude DD -85.550 -157.83 -85.550 -157.83
Latitude longitude precision DD 0.008 0.08 0.008 0.08
Locality Scott Glacier region, southern Trans-antarctic Mountains, on the West side of the Robert Scott Glacier, about 12km from the coast west of the Medina Peaks
Survey Mount Goodale

Climate

Soil climate zone:
Coastal Mountain
Estimated mean annual temperature:
-20 °C
Frozen ground depth:
20 > cm
Frozen type:
Frozen comment:
>20cm

Geology

Geological setting:
The area has a complex and variable sequence of rocks including metasedimentary quartzite, marbles, schists, and granitised sediments; the rocks at this site are dominantly granitic
Patterned ground:
Surface weathering or surface features:
Surface rocks are strongly oxidised and well stained; also crumbly; some local solifluction; weathering may be relict

Soil

Soil parent material:
Thin till cover with granitic bedrock
Previous disturbance:
Nil
Soil weathering stage:
6 4 (Campbell & Claridge 1975)
Soil moisture status:
The soils are very moist from thawing snow patches
Biological activity:
Black lichen growing abundantly on rock and soil surfaces Soil sampled underneath lichen occurrence
Profile Description
HorizonDepthDescription
295a 0 – 1 cm yellowish brown (10YR 5/8) granular sandy gravel; moderately cohesive; moderately developed vesicular structure; many black lichen clusters on the soil surface with hyphae through the soil; rock particles strongly stained and subangular; distinct boundary,
295b 1 – 4 cm yellowish brown (10YR 5/4) sandy granular pebble to boulder gravel; loose; rock particles strongly stained and angular; indistinct boundary,
295c 5 – 20 cm yellowish brown (10YR 5/4) granular pebble to boulder gravel; loose; sharp boundary; on bedrock

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
295a 0-1cm 0.0 1.0 No
295b 1-4cm 1.0 4.0 No
295c 5-20cm 5.0 20.0 No
Particle size distribution
Sample name< 2 mm2 - 0.5 mm0.5 - 0.25 mm0.25 - 0.1 mm0.1 - 0.05 mm0.05 - 0.02 mm0.02 - 0.002 mm< 0.002 mmFe2O3CaCO3Notes
295a
295b
295c
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
295a :
295b :
295c :
National Soil Archive Samples
Sample nameNSA Sample IdContainer typeFraction type
295a M22/1629 medium coarse
295a M22/1630 medium fine
295a M22/7182 Glass vial metal lid
295b M22/1631 medium coarse
295b M22/1632 White lid small fine
295b M22/7183 Glass vial metal lid
295c M22/1633 medium coarse
295c M22/1634 White lid small fine
295c M22/7184 Glass vial metal lid

Photos

Photo record:
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