Site Information

Site number:
408
Authors:
IBC, GGC
Date recorded:
1977/12/02
Reason Sampled:
Soil weathering examination
Description:
Top of St Pauls Mountain in the Asgard Range
Altitude:
2350 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer IBC GGC
GPS No
Latitude Longitude DMS 77° 39.5' S 161° 13' E 77° 39.5' S 161° 13' E
Latitude Longitude DD -77.658 161.217 -77.658 161.217
Latitude longitude precision DD 0.004 0.008 0.004 0.008
Locality Wright Valley in the Asgard Range
Survey USGS, Antarctica 1:50,000 Topo. Ser. 1977 Lake Vanda Antarctica

Climate

Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-35 °C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:

Geology

Geological setting:
Ferrar Dolerite caps most of the higher peaks and ridges because of its resistance to erosion
Patterned ground:
Nil
Surface weathering or surface features:
Dolerite is strongly stained with surface polish; some outcrops are sculptured but not deeply; weathering along joint planes resulting in rounded spheroidal forms

Soil

Soil parent material:
Fragmental dolerite
Previous disturbance:
Nil
Soil weathering stage:
6
Soil moisture status:
Snow patches widespread but no thaw present
Biological activity:
Nil observed
Profile Description
HorizonDepthDescription
408a 0 – 2 cm dark brown (10YR 3/3) granular gravel; loose; rock particles subangular and strongly stained; distinct boundary,
408b 2 – 20 cm dark brown (7.5YR 3/2) sandy granular gravel

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
408a 2-0cm -2.0 0.0 No
408b 2-20cm 2.0 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
408a
408b
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
408a :
408b :
National Soil Archive Samples
Sample nameNSA Sample IdContainer typeFraction type
408a M22/2333 medium coarse
408a M22/2334 medium fine
408b M22/2335 White lid small coarse
408b M22/2336 White lid small fine

Photos

Photo record:
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