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Profile Number 37

Laboratory number: 1008 A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 37Profile Description
Site number:729A10 - 10 cmBlack (10YR 2/1) clay loam; strong crumb structure; rough-ped fabric; slightly hard when dry; 1% basalt fragments up to 5 mm; pH 6.0; clear boundary
Classification:Northcote (1979) - Gn4.41
Stace et al. (1972) - Chocolate Soil
B110 - 30 cmDark brown (7.5YR 3/2) light clay; strong fine (5 mm) subangular blocky structure; rough-ped fabric; hard when dry; 3% basalt fragments up to 8 mm; pH 6.5; clear boundary
Location:Traralgon 8221, grid ref. 613498
Road cutting Mount Tassie — Traralgon road 0.3 km N of Mount Tassie
B230 - 72 cmDark brown to brown (7.5YR 4/2) medium clay; moderate fine (5 mm) subangular blocky structure; rough-ped fabric; firm when moist; 30% basalt fragments up to 50 mm; pH 6.5; diffuse boundary
Land system, component: Neerim, 5B372 - 90 cmStrong brown (7.5YR 4/6) medium clay; moderate (3 mm) granular structure; smooth-ped fabric; 2% disintegrating yellowish brown and red basalt fragments up to 15 mm; pH 6.0
Topography:Crest slope of hill, 11% gradient
Elevation:680 m
Drainage:Moderate
Parent material:Tertiary basalt
Vegetation:Cleared; predominantly Poa sp. with scattered Eucalyptus obliqua and Pomaderris aspera
LABORATORY ANALYSES 1008
Horizon
Sample
Depth

cm
Lab.
texture
Particle size distribution
Atterberg limits
1:5 soil water suspension
Clay mineralogy by x-ray diffraction
Gravel

%
Coarse
sand
% f.e.
fine sand

% f.e.
Silt

% f.e.
Clay

% f.e.
liquid
limit
%
plastic
limit
%
plasticity
index
%
linear
shrinkage
%
pH
EC
25C
uS/cm
Cl-

%
Depth

cm
Composition

%
A1
0-10
SiL
3
23
26
28
16
6.0
110
0.006
B1
20-30
SiCL
0
9
27
27
31
69
42
27
17
6.3
72
0.003
B2
32-60
CL
<1
11
27
22
35
6.2
51
0.003
B3
72-90
C
2
7
23
15
50
5.8
42
0.003
Horizon
Sample
Depth

cm
Org. C


%
Total N


%
1.3C
N
Free
Fe2O3

%
Available
HCl extract
Exchangeable cations
P
ppm
K
ppm
P
%
K
%
Ca
Mg
K
Na
CEC
Ca
% of CEC
Mg
K
Na
H
Milliequivalents/100g
A1
0-10
6.6
0.56
15
5.7
38
480
0.084
0.18
9.8
2.1
1.4
0.5
462
21
5
3
1
70
B1
20-30
3.0
0.30
13
5.8
11
260
0.056
0.13
7.7
1.8
0.8
0.3
.4.4
22
5
2
1
70
B2
32-60
7.0
0.064
0.12
5.5
2.3
0.8
0.2
32.1
17
7
2
1
73
B3
72-90
6.9
0.075
0.086
6.0
3.2
0.4
0.4
32.1
19
10
1
1
69
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