Browse Data | 1972 - Wright Valley / Taylor Dry Valley

360

Site Information

Site number:: 360

Authors:: IBC, GGC

Date recorded:: 1972/12/09

Reason Sampled:: Soil weathering examination

Description:: On the SE side of the Wright Valley adjacent to the Meserve Glacier; at the head of the Meserve Glacier and just below the top of Mt Ulla; a small steep rocky peak with some weathered material in clefts

Altitude:: 1610 m

Aspect:: Nil

Slope:: 0 °

Location Data
Observer	IBC	GGC
GPS	No
Latitude Longitude DMS	77° 31.8' S 162° 23.5' E	77° 31.5' S 162° 23' E
Latitude Longitude DD	-77.5300 162.392	-77.525 162.383
Latitude longitude precision DD	0.0008 0.004	0.004 0.008
Locality	Lower Wright Valley, McMurdo Dry Valley region
Survey	USGS 1:50,000 Antarctic Topo. Ser. Lake Bonney Quadrangle

Climate

Soil climate zone:: Coastal Mountain

Estimated mean annual temperature:: -25 °C

Frozen ground depth:: 0 cm

Frozen type:

Frozen comment:

Geology

Geological setting:: The exposure is coarse grained micaceous granite

Patterned ground:: Nil

Surface weathering or surface features:: Upper surfaces of rock outcrops and boulders have moderate staining; some slight rounding and granular disintegration

Soil

Soil parent material:: Fragmented micaceous granite

Previous disturbance:: Nil at site

Soil weathering stage:: 3 (Campbell & Claridge 1975)

Soil moisture status:: Dry soil and site

Biological activity:: Nil observed

Profile Description
Horizon	Depth	Description
360a	0 – 10 cm	light olive brown (2.5Y 5/4) granular pebbly gravel; loose; rock particles angular; weakly to moderately stained and weakly to moderately altered; distinct boundary, on crumbly granitic bedrock

Sample Data

Physical Data
Sample name	Depth description	Top (cm)	Base (cm)	Bulk Density	Dry Bulk Density	Gravimetric Moisture	Vol. Moisture (BD=2)
360	0-10cm	0	10			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
360	6.7	.	.	.	.	.	.	.	0.03	.

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
360		78.6	8.4	6.6	2.9	1.0	1.0	1.1	0.17	.

Clay Mineralogy
Sample name	Mica	IHM	HIV - IHM	ICHL	VT	HIV	CHL	SM	CHL SM	FE - CHL	HT	QTZ	FLD	HB	CAL	Notes
360	.	.	.	.	50.0	50.0	.	.	.	.	.	.	.	.		:

Photos

Photo record:

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