Browse Data | 1964 - Shackleton Glacier

⇚ 77 |

78

| 79 ⇛

Site Information

Site number:: 78

Authors:: IBC, GGC

Date recorded:: 1964/12/10

Reason Sampled:: Soil characterisation

Description:: Approximately 1.5km east of Wiest Bluff on an uneven ice- cored till surface; on the side of a patterned ground mound

Altitude:: 2100 m

Aspect:: NE

Slope:: 5 °

Location Data
Observer	IBC
GPS	No
Latitude Longitude DMS	85° 24' S 176° 14' W
Latitude Longitude DD	-85.400 -176.233
Latitude longitude precision DD	0.008 0.008
Locality	Shackleton Glacier, Queen Maud Mountains, at the southern end of the Cumulus Hills, just north of Zaneveld Glacier junction with Shackleton Glacier
Survey	USGS 1:250 000 1968; Liv Glacier SV 1-10/5

Climate

Soil climate zone:: Inland mountain

Estimated mean annual temperature:: -40 °C

Frozen ground depth:: 25 cm

Frozen type:: Stagnant glacial ice

Frozen comment:: 25cm

Geology

Geological setting:: Dolerite outcrops widely in an undulating ice overridden landscape; cover deposits are patchy varying from bouldery felsenmeer regolith to intermittent till patches; surface age is variable owing to remnant snow fields which behave as local nevee glaciers possibly reworking older surface deposits; the drift mantle is young

Patterned ground:: Ice cored moraine with low (<1m) mounds, in places forming low ridges

Surface weathering or surface features:: Mainly subangular weakly and moderately stained dolerite boulders with slight surface exfoliation

Soil

Soil parent material:: Gravelly till including weathered dolerite (alongside site 77)

Previous disturbance:: Nil

Soil weathering stage:: 6 2 (Campbell & Claridge 1975)

Soil moisture status:: Ultraxerous, intermittent snow cover and adjacent snow patch but no thawing observed

Biological activity:: Nil observed

Profile Description
Horizon	Depth	Description
78a	0 – 3 cm	pale brown (10YR 6/3) pebbly granular silty sand; moderately cohesive; many fine salt flecks with salt coatings on some stones; moderately developed vesicular structure; finer rock particles mainly subrounded, moderately stained and strongly altered; distinct boundary,
78b	3 – 13 cm	light yellowish brown (10YR 6/4) gravelly silty sand; weakly cohesive; many salt flecks diffused through the horizon; finer rock particles strongly altered, mainly subrounded and moderately stained; distinct boundary,
78c	13 – 25 cm	pale brown to very pale brown (10YR 6/3-7/3) gravelly sandy silt; loose; rock particles mainly subangular and weakly stained but smaller particles subrounded and strongly altered; sharp boundary, on ice

Sample Data

Physical Data
Sample name	Depth description	Top (cm)	Base (cm)	Bulk Density	Dry Bulk Density	Gravimetric Moisture	Vol. Moisture (BD=2)
78a	0-3cm	0.0	3.0
78b	3-13cm	3.0	13.0
78c	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
78a	6.8	5.3	6.6	3.1	0.03	1.9	20.4	.	.	1.33
78b	6.9	8.5	7.0	6.8	0.04	3.2	26.0	.	.	2.03
78c	6.8	5.6	2.0	2.7	0.03	2.7	10.5	.	.	1.05

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
78a	61	42.0	20.2	21.0	4.2	4.2	4.6	3.4	0.23	.
78a	61	41.4	21.4	15.6	4.1	4.8	7.0	5.2	0.36	.
78c	75	50.1	21.0	14.3	3.7	3.8	4.6	2.3	0.28	.

Clay Mineralogy
Sample name	Mica	IHM	HIV - IHM	ICHL	VT	HIV	CHL	SM	CHL SM	FE - CHL	HT	QTZ	FLD	HB	CAL	Notes
78a	55.0	.	.	.	15.0	.	.	15.0	.	15.0	.	.	.	.
78b	45.0	.	20.0	.	.	.	.	20.0	.	15.0	.	.	.	.
78c	35.0	.	.	.	20.0	.	.	35.0	.	10.0	.	.	.	.

National Soil Archive Samples
Sample name	NSA Sample Id	Container type	Fraction type
78a	M22/0676	medium	coarse
78a	M22/0677	medium	fine
78a	M22/6825	Glass vial metal lid
78b	M22/0678	medium	coarse
78b	M22/0679	medium	fine
78b	M22/6826	Glass vial metal lid
78c	M22/0680	White lid small	coarse
78c	M22/0681	medium	fine
78c	M22/6827	Glass vial metal lid

Photos

Photo record:

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