Site Information

Site number:
64
Authors:
IBC, GGC
Date recorded:
1964/12/02
Reason Sampled:
Soil characterisation
Description:
The edge of the Polar Plateau at the head of La Prade Valley, 5km SE of Shenk Pk.; an undulating convex dolerite felsenmeer surface
Altitude:
2970 m
Aspect:
SE
Slope:
5 °
Location Data
Observer IBC
GPS No
Latitude Longitude DMS 85° 14' S 174° 19' W
Latitude Longitude DD -85.233 -174.317
Latitude longitude precision DD 0.008 0.008
Locality Shackleton Glacier, Queen Maud Mountains, on mountain slopes to the south of McGregor Glacier at the northern end of the Cumulus Hills
Survey USGS 1:250 000 1968; Liv Glacier SV 1-10/5

Climate

Soil climate zone:
Central mountain
Estimated mean annual temperature:
-40 °C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Not determined

Geology

Geological setting:
Ferrar Dolerite which occurs extensively as sills forms erosion resistant caps on many hills; on low relief surfaces, bedrock has been fractured by frost action to form a rubble layer or felsenmeer
Patterned ground:
Hummocky surface with poorly defined small nets
Surface weathering or surface features:
Surface boulders very strongly stained and subrounded to rounded

Soil

Soil parent material:
Frost weathered dolerite bedrock
Previous disturbance:
Nil
Soil weathering stage:
5 (Campbell & Claridge 1975)
Soil moisture status:
Xerous; abundant snow patches but no thawing observed
Biological activity:
Nil observed
Profile Description
HorizonDepthDescription
64a 0 – 8 cm yellowish red (5YR 5/6) boulder, cobble and granule gravel; weakly cohesive with some cementing by finer particles; abrupt boundary, on dolerite bedrock

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
64 0-8cm 0 8
Sample solution chemistry
Sample namepHNa meq/100gCa meq/100gMg meq/100gK meq/100gCl meq/100gSO4 meq/100gNO3 meq/100gEC mmho/cmSoluble SaltNotes
64 4.7 3.2 6.7 2.0 0.01 0.3 10.3 0.9 . 1.05  
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
64 53 64.2 13.3 9.9 3.3 3.6 3.6 1.3 0.83 .
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
64 35.0 15.0 . . . 10.0 15.0 15.0 . . . . 10.0 .
National Soil Archive Samples
Sample nameNSA Sample IdContainer typeFraction type
64 M22/0615 medium coarse
64 M22/0616 medium fine
64 M22/6799 Glass vial metal lid

Photos

Photo record:
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