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Site Information
Site number:
232
Authors:
IBC, GGC
Date recorded:
1969/11/30
Reason Sampled:
Soil weathering examination
Description:
La Gorce Mountains at the northwestern end near Mt Gjertsen and from a site on the ridgetop near the northern summit ridge knoll
Altitude:
1950 m
Aspect:
N
Slope:
3 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
86° 37.5' S 148° 16' W
86° 37.5' S 148° 16' W
Latitude Longitude DD
-86.625 -148.267
-86.625 -148.267
Latitude longitude precision DD
0.004 0.008
0.004 0.008
Locality
Scott Glacier region, southern Trans-antarctic Mountains in the La Gorce Mountains
Survey
US Geological Survey 1:250 000 1968, Mount Blackburn
Climate
Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-40
°C
Frozen ground depth:
10 > cm
Frozen type:
Dry-frozen
Frozen comment:
>10cm
Geology
Geological setting:
Quartzites and quartzitic greywackes of the La Gorce Formation are common in the area; porphyritic volcanic rocks are also present
Patterned ground:
Nil
Surface weathering or surface features:
Some scattered salts; moderate surface staining
Soil
Soil parent material:
Fragmented dark porphyritic bedrock with locally derived fines
Previous disturbance:
Nil
Soil weathering stage:
6
3
(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
Horizon Depth Description
232a
0
–
10
cm
light yellowish brown (10YR 6/4) sandy to silty pebbly to bouldery gravel; weakly to moderately cohesive; patchy well developed vesicular structure; scattered small salt flecks; distinct boundary, on fragmented bedrock
Sample Data
Physical Data
Sample name Depth description Top (cm) Base (cm) Bulk Density Dry Bulk Density Gravimetric Moisture Vol. Moisture (BD=2)
232
0-10cm
0
10
No
Particle size distribution
Sample name < 2 mm 2 - 0.5 mm 0.5 - 0.25 mm 0.25 - 0.1 mm 0.1 - 0.05 mm 0.05 - 0.02 mm 0.02 - 0.002 mm < 0.002 mm Fe2 O3 CaCO3 Notes
232
Clay Mineralogy
Sample name Mica IHM HIV - IHM ICHL VT HIV CHL SM CHL SM FE - CHL HT QTZ FLD HB CAL Notes
232
:
National Soil Archive Samples
Sample name NSA Sample Id Container type Fraction type
232
M22/1291
White lid small
coarse
232
M22/1292
medium
fine
232
M22/7029
Glass vial metal lid
Photos
Photo record:
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Antarctic
Soils
Explorer
Copyright Manaaki Whenua – Landcare Research © 1996 - 2023
Version: 1.0.124
Copyright Manaaki Whenua – Landcare Research © 1996 - 2023