GL165

Location: Rocklands

Australian Soil Classification: Ferric, Mesotrophic, Brown KUROSOL (confidence level 1)
General Landscape Description: Undulating rises
Site Description: Upper slope / crest
Land Unit: Dundas Redgum
Geology: Tertiary sediments

General Land Unit Description: This site appears to be a small patch of Tertiary capping, surrounded by rhyolite. The vegetation is significantly different to the other Tertiary sites, consisting of blackboys and wattles rather than red gums. There is still the presence of the red and white mottled zone (‘tiger mottles’) although they are not as pronounced as the other sites. The ferruginous and manganiferous buckshot that is found at the other sites is absent.







Soil Profile Morphology

A1	0-10 cm	Dark brown (7.5YR3/2); sandy loam; weak medium to coarse subangular blocky structure; weak consistence, dry; contains a few small subrounded ferruginous nodules; pH 5.6; gradual transition to:
A2	10-30 cm	Strong brown (7.5YR4/6); fine sandy loam; weak medium to coarse subangular blocky structure; firm consistence, dry; contains many medium to coarse subangular ferruginous nodules; pH 6.0; clear and wavy transition to:
Subsoil
B2	30-50 cm	Strong brown (7.5YR5/6) medium heavy clay, weak medium to coarse subangular blocky structure; very firm consistence, dry; contains many very coarse ferruginous nodules; pH 5.4; clear transition to:
BC	50-80 cm	Medium heavy clay; many subrounded medium pebbles present; clear transition to:
C1	50-110 cm
C2	110-150 cm

• Acidic subsoil
• Ferric horizons
• Strong texture contrast between topsoil and subsoil

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl2)	EC dS/m	Organic Carbon %	Total Nitrogen %	Exchangeable Aluminium ppm	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
A1	0-10	5.6	4.9	0.05	3.0	0.18	51	15	3.6	1.8	0.60	0.19	14	43	17	18	27.9	11.5
A2	10-30	6.0	5.3	0.08			14	12	4.1	3.4	0.64	0.26	10	37	16	33	24.8	15.3
B2	30-50	5.4	4.7	0.09			75	11	1.7	5.2	0.35	0.43	6	16	6	67	37.3	23.5