Site Information

Site number:
600
Authors:
IBC, GGGC, MRB
Date recorded:
1990/02/05
Reason Sampled:
Soil contamination examination
Description:
At Scott Base outside the entrance to the old Mess Hut, approximately 8m SE from the existing Scott Base Mess room
Altitude:
7 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer GGC IBC
GPS Yes
Latitude Longitude DMS 77° 50.97' S 166° 45.99' E 77° 51' 37" S 166° 46' 41" E
Latitude Longitude DD -77.84950 166.76650 -77.8603 166.7780
Latitude longitude precision DD 0.00008 0.00008 0.00015 0.00015
Locality Pram Point, Scott Base, Ross Island
Survey Dept of Interior US Geological Survey 1986

Climate

Soil climate zone:
Coastal Antarctic
Estimated mean annual temperature:
-18 °C
Frozen ground depth:
2 cm
Frozen type:
Hard ice-cemented
Frozen comment:
2cm

Geology

Geological setting:
Rocks are predominantly scoria flows of the McMurdo Volcanics; Last Glaciation Ross 1 ice covered the site and traces of rocks (sandstone and granite granules and small pebbles) probably from the Royal Society Range can be found; the drift mantle is thin and patchy with bedrock a little below the surface
Patterned ground:
Nil
Surface weathering or surface features:
Nil

Soil

Soil parent material:
Drift deposit from McMurdo Volcanics, with some surface modification from site levelling for base site occupation; some foreign debris
Previous disturbance:
Disturbed surface with numerous items of anthropic debris
Soil weathering stage:
1 (Campbell & Claridge 1975)
Soil moisture status:
Some surface thaw water during summer; currently dry but frozen to within 2cm of the surface
Biological activity:
Nil
Profile Description
HorizonDepthDescription
600a 0 – 2 cm greyish brown (10YR 5/2) sandy gravel; loose; abundant fragments of exotic materials; sharp boundary, drill core in ice-cemented ground
600b 2 – 12 cm [ greyish brown (10YR 5/2) sandy gravel; fragments of exotic materials,
600c 12 – 24 cm [ greyish brown sandy gravel
600d 24 – 38 cm [ greyish brown (2.5Y 5/2) sandy gravel,
600e 38 – 44 cm [ greyish brown (2.5Y 5/2) sandy gravel,
600f 44 – 58 cm [ greyish brown (2.5Y 5/2) sandy gravel,
600g 58 – 64 cm [ grey (10YR 5/1) sandy gravel,
600h 64 – 78 cm [ grey (10YR 5/1) sandy gravel,
600i 78 – 86 cm [ grey (10YR 5/1) sandy gravel,
600j 86 – 92 cm [ grey (10YR 5/1) sandy gravel

Sample Data

Physical Data
Sample nameDepth descriptionTop (cm)Base (cm)Bulk DensityDry Bulk DensityGravimetric MoistureVol. Moisture (BD=2)
600a 0-2cm 0.0 2.0 No
600b 2-12cm 2.0 12.0 No
600c 12-24cm 12.0 24.0 No
600d 24-38cm 24.0 38.0 No
600e 38-44cm 38.0 44.0 No
600f 44-58cm 44.0 58.0 No
600g 58-64cm 58.0 64.0 No
600h 64-78cm 64.0 78.0 No
600i 78-86cm 78.0 86.0 No
600j 86-97cm 86.0 97.0 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
600a 3.1
600b 9.0
600c 7.6
600d 12.1
600e 13.6
600f 19.1
600g 10.2
600h 8.2
600i 14.3
600j 12.7
Clay Mineralogy
Sample nameMicaIHMHIV - IHMICHLVTHIVCHLSMCHL SMFE - CHLHTQTZFLDHBCALNotes
600a :
600b :
600c :
600d :
600e :
600f :
600g :
600h :
600i :
600j :

Photos

Photo record:
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