Browse Data | 1964 - Hallett Peninsula

13

Site Information

Site number:: 13

Authors:: IBC, GGC

Date recorded:: 1964/10/30

Reason Sampled:: Soil characterisation

Description:: On an uneven sloping lateral moraine surface on the south side of an un-named glacier, approx 2km NE of Luther Peak

Altitude:: 175 m

Aspect:: NW

Slope:: 10 °

Location Data
Observer	IBC
GPS	No
Latitude Longitude DMS	72° 21' S 169° 54' E
Latitude Longitude DD	-72.350 169.900
Latitude longitude precision DD	0.008 0.008
Locality	Northern Victoria Land near Hallett Peninsula; west side of Edisto Inlet near Luther Peak
Survey	MZMS 166; 1960 Tucker Glacier

Climate

Soil climate zone:: Coastal Antarctic

Estimated mean annual temperature:: -16 °C

Frozen ground depth:: 50 cm

Frozen type:: Hard ice-cemented

Frozen comment:: 50cm

Geology

Geological setting:: Lateral glacial moraine, possibly ice-cored, deposited by retreat of a local glacier; the moraine marks the former position of the un- named glacier

Patterned ground:: Large uneven-surfaced nets with deep (>1m) troughs

Surface weathering or surface features:: Some fragmentation of surface rocks, some light staining and exfoliation with slight cavernous weathering

Soil

Soil parent material:: Bouldery till (up to 2m) comprising metagreywacke of the Robertson Bay Group

Previous disturbance:: Nil

Soil weathering stage:: 2 (Campbell & Claridge 1975)

Soil moisture status:: Xerous to subxerous, some moisture from thawing of patchy snow cover

Biological activity:: Nil observed

Profile Description
Horizon	Depth	Description
13a	0 – 5 cm	pale yellow to pale olive (5Y 7/3-6/3) cobbly silt; larger rock particles angular to subangular and unstained but some smaller particles partly oxidised; indistinct boundary,
13b	5 – 13 cm	pale yellow (5Y 7/3) pebbly silt; weakly cohesive; subangular to angular unstained rock particles; slightly moist; indistinct boundary,
13c	13 – 25 cm	light olive grey to pale olive (5Y 6/2-7/2) cobbly pebbly silt; rock particles angular with some pale coatings; fine vesicular structure; frosted; distinct boundary,

Sample Data

Physical Data
Sample name	Depth description	Top (cm)	Base (cm)	Bulk Density	Dry Bulk Density	Gravimetric Moisture	Vol. Moisture (BD=2)
13a	0-5cm	0.0	5.0
13b	5-13cm	5.0	13.0
13c	13-25cm	13.0	25.0

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/cm	Soluble Salt	Notes
13a	9.6	11.5	<0.1	<0.1	0.5	9.8	1.4	0.4	.	1.7
13b	9.6	6.2	0.1	0.4	0.3	4.8	1.1	0.2	.	0.9
13c	9.8	3.7	0.1	0.2	0.3	2.4	1.1	0.05	.	0.5

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	Fe₂O₃	CaCO₃	Notes
13a	56	41.0	15.0	16.3	5.7	9.2	10.8	1.7	0.31	.
13b	52	41.0	15.1	15.3	5.4	9.2	11.5	2.3	0.33	.
13c	55	41.8	13.5	12.9	4.6	9.7	15.0	2.1	0.39	.

Clay Mineralogy
Sample name	Mica	IHM	HIV - IHM	ICHL	VT	HIV	CHL	SM	CHL SM	FE - CHL	HT	QTZ	FLD	HB	CAL	Notes
13a	80.0	.	.	.	.	.	20.0	.	.	.	.	.	.	.
13b	75.0	.	.	.	.	.	20.0	5.0	.	.	.	.	.	.
13c	70.0	.	.	.	.	.	25.0	5.0	.	.	.	.	.	.

National Soil Archive Samples
Sample name	NSA Sample Id	Container type	Fraction type
13a	M22/0443	large	coarse
13a	M22/0444	medium	fine
13a	M22/6715	Glass vial metal lid
13b	M22/0445	large	coarse
13b	M22/0446	large	coarse
13b	M22/0447	medium	fine
13b	M22/6716	Glass vial metal lid

Photos

Photo record:

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