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Site Information Site number:
29 Authors:
IBC, GGC Date recorded:
1964/11/03 Reason Sampled:
Soil characterisation Description:
A low angle slope adjacent to an extensive snowbank with bedrock fragmentation occurring through frost action Altitude:
500 m Aspect:
N Slope:
10 ° Location Data Observer IBC GPS No Latitude Longitude DMS 72° 26' S 169° 58' E Latitude Longitude DD -72.433 169.967 Latitude longitude precision DD 0.008 0.008 Locality Northern Victoria Land near Hallett Peninsula; at Redcastle Ridge between the Arneb and Edisto Glaciers Survey MZMS 166; 1960 Tucker Glacier
Climate Soil climate zone:
Coastal Antarctic
Estimated mean annual temperature:
-18
°C Frozen ground depth:
20 cm Frozen type:
Hard ice-cemented Frozen comment:
20cm Geology Geological setting:
Flow basalt of the McMurdo Volcanics Group is interbedded with scoriaceous basalt and tuffite Patterned ground:
Weakly developed small nets (.5-1.5m) with fines concentrated in the centres Surface weathering or surface features:
Angular surface pebbles and cobbles Soil Soil parent material:
Dark coloured and coarse textured fragmented flow basalt forming a veneer of frost shattered material Previous disturbance:
Nil Soil weathering stage:
1 (Campbell & Claridge 1975) Soil moisture status:
Oceanic subxerous, moisture from thawing of intermittent surface snow cover Biological activity:
scattered small patches of orange lichen Profile Description Horizon Depth Description 29a 0 – 5 cm dark grey to very dark grey (2.5Y N4/-N3/) pebble gravel; loose; some rock particles with thin white salt coatings; rock particles angular; distinct boundary, 29b 5 – 10 cm very dark grey (2.5Y N3/) pebble gravel; loose; slightly moist; rock particles angular; distinct boundary, 29c 10 – 20 cm very dark grey (2.5Y N3/) sandy pebble gravel; firmly frosted, on frozen ground
Sample Data Physical Data Sample name Depth description Top (cm) Base (cm) Bulk Density Dry Bulk Density Gravimetric Moisture Vol. Moisture (BD=2) 29a 0-5cm 0.0 5.0 29b 5-10cm 5.0 10.0 29c 10-20cm 10.0 20.0
Sample solution chemistry Sample name pH Na meq/100g Ca meq/100g Mg meq/100g K meq/100g Cl meq/100g SO4 meq/100g NO3 meq/100g EC mmho/cmSoluble Salt Notes 29a 7.8 0.15 <0.1 <0.1 0.01 <0.05 <0.1 <0.05 . 0.02 29b 7.4 0.1 <0.1 <0.1 0.01 <0.05 <0.1 <0.05 . 0.02 29c 7.5 0.1 <0.1 <0.1 0.01 <0.05 <0.1 <0.05 . 0.02
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 29a 17 94.0 3.1 1.0 0.3 0.5 0.8 0.1 0.3 . 29b 22 74.3 13.2 7.9 1.0 1.4 1.7 0.2 0.3 . 29c 52 43.5 18.6 18.7 5.0 6.6 6.9 0.5 0.4 .
Clay Mineralogy Sample name Mica IHM HIV - IHM ICHL VT HIV CHL SM CHL SM FE - CHL HT QTZ FLD HB CAL Notes 29a 5.0 . . . . . . . . . . . 10.0 . glasses and short range order minerals 29b 5.0 . . . . . . . . . . . 10.0 . glasses and short range order minerals 29c 5.0 . . . . . . . . . . . 10.0 . glasses and short range order minerals
National Soil Archive Samples Sample name NSA Sample Id Container type Fraction type 29b M22/0503 large coarse 29b M22/0504 White lid small fine 29b M22/6744 Glass vial metal lid 29c M22/0505 medium coarse 29c M22/0506 White lid small fine 29c M22/6745 Glass vial metal lid
Photos Photo record:
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Antarctic Soils Explorer Copyright Manaaki Whenua – Landcare Research © 1996 - 2023
Version: 1.0.146
Copyright Manaaki Whenua – Landcare Research © 1996 - 2023