EGG7

Location: Angus Vale

Australian Soil Classification: Haplic, Pedaric, Red CHROMOSOL

Previous Site Names: EG7, EG251
General Landscape Description: Undulating rises
Site Description: Upper slope of a low crest (4%)
Geology: Upper Devonian rhyolite

EG7 Landscape - Photo taken from pit site. The terrace of the Mitchell River is in the middle-ground

Soil Profile Morphology:

Surface Soil

A11	0-15 cm	Dark reddish brown (5YR3/2); fine sandy clay loam; moderate medium granular parting to fine granular structure; weak consistence moist; contains a few angular rhyolite cobbles; pH 5.9; gradual change to:	EG7 Profile
A22	15-30 cm	Reddish brown (5YR4/4); fine sandy clay loam; moderate medium polyhedral structure; weak consistence moist; contains many angular rhyolite pebbles; pH 6.5; clear change to:
Subsoil
B2	30-55 cm	Reddish brown (2.5YR4/4); medium clay, sandy; medium to strong polyhedral parting to fine polyhedral structure; firm consistence moist; few angular medium rhyolite pebbles present; pH 7.1; clear and wavy change to:
B3	55-90 cm	Reddish brown (5YR4/4); light clay, sandy; weak medium polyhedral structure; firm consistence moist; common angular fine rhyolite pebbles present; pH 7.3; clear and wavy change to:
C	90+ cm	Weathering rhyolite.

Soil Profile Characteristics:

EG7 graphs

Chemical and Physical Analysis:

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Organic Carbon %	Exchangeable Acididty meq/100g	Exchangeable Cations				Coarse Sand (0.2-2.0 mm) %	Fine Sand (0.02-0.2 mm) %	Silt (0.002-0.02 mm) %	Clay (<0.002 mm) %	Field Capacity % w/w	Wilting Point % w/w
							Ca	Mg	K	Na
							meq/100g
A11	0-15	5.9	4.9	0.06	2.9	12.0	4.1	1.5	1.0	0.15	24	39	13	15	31.6	10.0
A12	15-30	6.5	5.4	<0.05	0.77	6.4	4.9	1.8	0.58	0.13	35	38	10	16	23.0	7.1
B2	30-55	7.3	6.6	<0.05		5.2	12.0	8.1	0.11	0.21	29	40	10	20	25.7	10.1
B3	55-90	7.1	6.4	<0.05		7.9	12.0	6.9	0.61	0.17	15	30	10	41	38.4	17.5

Profile Described By: David Ress and Ian Sargeant, 22nd September 2005.

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