Browse Data | 1969 - Scott Glacier

224

Site Information

Site number:: 224

Authors:: IBC, GGC

Date recorded:: 1969/11/25

Reason Sampled:: Soil weathering examination

Description:: On an east/west trending portion of Ackerman Ridge on a boulder granitic surface about 150m below the ridge crest

Altitude:: 2150 m

Aspect:: W

Slope:: 14 °

Location Data
Observer	IBC	GGC
GPS	No
Latitude Longitude DMS	86° 33.5' S 147° 58' W	86° 34.5' S 147° 58' W
Latitude Longitude DD	-86.558 -147.967	-86.575 -147.967
Latitude longitude precision DD	0.004 0.008	0.004 0.008
Locality	Scott Glacier region, southern Trans-antarctic Mountains on Ackerman Ridge
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:: 45 > cm

Frozen type:: Dry-frozen

Frozen comment:: >45cm

Geology

Geological setting:: Weathering continues on the surfaces at higher altitude with alteration and oxidation to greater than 30cm depth; salt patches are common under many surface stones; in places the soil has a very distinctive sulphur like colour; the yellow coloured soil patches seem to be associated with dark coloured rock

Patterned ground:: Nil

Surface weathering or surface features:: Angular cobbles and boulders with some surface oxide staining

Soil

Soil parent material:: Granitic/felsitic? fractured bedrock

Previous disturbance:: Nil

Soil weathering stage:: 4 (Campbell & Claridge 1975)

Soil moisture status:: Dry soil, occasional snow patches

Biological activity:: Nil Observed

Profile Description
Horizon	Depth	Description
224a	30 – 35 cm	yellow (2.5Y 8/8) sandy to silty bouldery gravel; loose to weakly cohesive; few medium distinct salt accumulations; rock particles subrounded to angular and mainly unstained,

Sample Data

Physical Data
Sample name	Depth description	Top (cm)	Base (cm)	Bulk Density	Dry Bulk Density	Gravimetric Moisture	Vol. Moisture (BD=2)
224	30-35cm	30	35			No

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
224	4.38	13.0	14.0	74.0	0.04	0.6	75.0	5.8	11.5	.

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
224		32.8	14.6	11.1	4.8	2.5	4.9	0.7	2.8	.

Clay Mineralogy
Sample name	Mica	IHM	HIV - IHM	ICHL	VT	HIV	CHL	SM	CHL SM	FE - CHL	HT	QTZ	FLD	HB	CAL	Notes
224	100.0	.	.	.	.	.	.	.	.	.	.	.	.	.		:

National Soil Archive Samples
Sample name	NSA Sample Id	Container type	Fraction type
224	M22/1265	White lid small	coarse
224	M22/1266	White lid small	fine
224	M22/7017	Glass vial metal lid

Photos

Photo record:

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