Site Information

Site number:
229
Authors:
IBC, GGC
Date recorded:
1969/11/28
Reason Sampled:
Soil weathering examination
Description:
Table Top, a small peak on the east side of Bartlett Glacier, 13km SE of Mt Gardiner and 9km NW of Mt Denauro; at the edge of a broad undulating till-covered ridge, just off the ridge and at the top of an adjacent steep slope
Altitude:
1970 m
Aspect:
E
Slope:
20 °
Location Data
Observer IBC GGC
GPS No
Latitude Longitude DMS 86° 24.50' S 152° 17' W 86° 24.50' S 152° 17' W
Latitude Longitude DD -86.4083 -152.283 -86.4083 -152.283
Latitude longitude precision DD 0.0008 0.008 0.0008 0.008
Locality Scott Glacier region, southern Trans-antarctic Mountains on the east side of Bartlett Glacier
Survey US Geological Survey 1:250 000 1968, Nilsen Plateau

Climate

Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-38 °C
Frozen ground depth:
40 cm
Frozen type:
dry frozen over ice-cemented
Frozen comment:
40cm

Geology

Geological setting:
The till on the upper portion of the adjacent slope, just below the ridge, may be the same stratigraphic till unit as that on the ridge but be representative of a greater depth; the soil is unweathered but this may be due to slope erosion on the upper margin of the till deposit
Patterned ground:
Nil
Surface weathering or surface features:
Weak surface staining and a moderately developed surface crust;

Soil

Soil parent material:
Weakly lithified sandy to silty bouldery till
Previous disturbance:
Nil
Soil weathering stage:
2 (Campbell & Claridge 1975)
Soil moisture status:
Scattered snow patches but no indications of snow thaw or liquid water
Biological activity:
Nil at site
Profile Description
HorizonDepthDescription
229a 0 – 5 cm pale olive (5Y 6/3) silty gravel; moderately cohesive; rock particles subrounded and unstained; indistinct boundary,
229b 30 – 40 cm light olive grey (5Y 6/2) silty gravel; weakly cohesive; weakly developed vesicular structure; rock particles subrounded and unstained; sharp boundary on ice-cemented ground

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
229a 0-5cm 0.0 5.0 No
229b 30-40cm 30.0 40.0 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
229a
229b
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
229a :
229b :
National Soil Archive Samples
Sample nameNSA Sample IdContainer typeFraction type
229a M22/1284 medium coarse
229a M22/1285 medium fine
229b M22/1286 medium coarse
229b M22/1287 medium fine
229b M22/7027 Glass vial metal lid

Photos

Photo record:
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