Site Information

Site number:
79
Authors:
IBC, GGC
Date recorded:
1964/12/10
Reason Sampled:
Soil characterisation
Description:
Approximately 1.5km ENE on the upper convex surface of a broad moraine ridge
Altitude:
2000 m
Aspect:
N
Slope:
7 °
Location Data
Observer IBC
GPS No
Latitude Longitude DMS 85° 22' S 176° 14' W
Latitude Longitude DD -85.367 -176.233
Latitude longitude precision DD 0.008 0.008
Locality Shackleton Glacier, Queen Maud Mountains, at the southern end of the Cumulus Hills, just north of Zaneveld Glacier junction with Shackleton Glacier
Survey USGS 1:250 000 1968; Liv Glacier SV 1-10/5

Climate

Soil climate zone:
Inland mountain
Estimated mean annual temperature:
-40 °C
Frozen ground depth:
45 cm
Frozen type:
Dry frozen over hard ice cemented
Frozen comment:
45cm

Geology

Geological setting:
Cover deposits are patchy, varying from bouldery felsenmeer regolith to intermittent till patches; surface age is variable owing to remnant snow fields which behave as local nevee glaciers possibly reworking older surface deposits; weathered soil overlies unweathered soil but it is not clear if the soil stratigraphy is due to weathering or reworking
Patterned ground:
Nil
Surface weathering or surface features:
Surface dolerite cobbles and boulders are moderately and weakly stained, subrounded to subangular, non-pitted but have moderate exfoliation

Soil

Soil parent material:
Doleritic fine textured slightly compact till
Previous disturbance:
Nil
Soil weathering stage:
6
Soil moisture status:
Ultraxerous, intermittent snow cover and adjacent snow patch but no thawing observed
Biological activity:
Nil observed
Profile Description
HorizonDepthDescription
79a 0 – 2 cm yellowish red (5Y 5/6) fine gravelly silt forming a discrete mass almost entirely surrounded by pale yellow soil; cohesive; small salt flecks diffused throughout; finer rock particles subrounded and moderately altered; abrupt boundary,
79b 2 – 20 cm pale yellow (5Y 7/3) fine gravelly sandy silt enclosing the yellowish red soil material; cohesive; small salt flecks diffused throughout; sharp boundary,
79c 20 – 45 cm olive grey (5Y 5/2) fine gravelly sandy silt; moderately cohesive; larger rock particles fresh but smaller particles strongly altered; sharp boundary, on frozen ground

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
79a 0-2cm 0.0 2.0
79b 2-20cm 2.0 20.0
79c 20-45cm 20.0 45.0
Sample solution chemistry
Sample namepHNa meq/100gCa meq/100gMg meq/100gK meq/100gCl meq/100gSO4 meq/100gNO3 meq/100gEC mmho/cmSoluble SaltNotes
79a 7.7 5.3 6.7 4.2 0.04 1.3 18.7 . . 1.47  
79b 7.6 7.7 0.8 18.4 0.07 9.0 5.1 . . 2.98  
79c 8.2 6.7 1.0 18.5 0.05 6.2 6.8 . . 1.86  
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
79a 90 44.7 21.5 18.3 3.8 4.1 6.3 0.7 0.5 .
79b 91 4.9 7.9 17.1 6.0 10.1 18.1 35.5 0.4 .
79c 89 4.5 8.1 17.2 5.9 9.8 15.9 38.0 0.4 .
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
79a . . . . . . . . . . . . . . non-crystalline
79b 40.0 . . . . 20.0 . 15.0 . 20.0 . 5.0 . .
79c 30.0 . 20.0 . . . 20.0 . . 20.0 . . . .
National Soil Archive Samples
Sample nameNSA Sample IdContainer typeFraction type
79a M22/0682 White lid small coarse
79a M22/0683 large fine
79a M22/6828 Glass vial metal lid
79b M22/0684 White lid small coarse
79b M22/0685 large fine
79b M22/6829 Glass vial metal lid
79c M22/0686 White lid small coarse
79c M22/0687 medium fine
79c M22/6830 Glass vial metal lid

Photos

Photo record:
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