Download Agency Code: 501 Project Code: P Site Code: 0555

Agency Code: 501 Project Code: P Site Code: 0555
Described by: Geoff M Dimmock Date: 18/11/1966
Observation type: existing vertical exposure Category: full description
Lab Analyses: Detailed chemical and physical analyses.
Location: MGA94 Zone: 50 479649 mE 6472612 mN Elevation (m): 247 Map
sheet: Northam 100K
Location notes: Road cutting on north side of road to summit of Mt. Brown (312M)
1.6km east of York township:
Site notes: 0-15cm occassional qz vein:30-45cm mottle - specks of decomposed
minerals:45-60cm 1cm qz veincapped:>90cm hard w'd gneiss
Disturbance: No effective disturbance, grazed.
Landform
Landform pattern: plateau
Relief/modal slope:
Landform element:
Morphological type: upper slope
Pattern Relief: plateau
Surface and Hydrological Properties
Rock outcrop:
Surface coarse fragments: few stones and boulder sized gravel
Physical properties:
Geology/parent material
Soil parent material: gneiss
Species List
Tallest: Acacia acuminata, Eucalyptus loxophleba
Lower: Danthonia sp., Stipa sp.
Land use
Surrounds: Grazing (grazing of vegetation planted by man).
Current Classification
WA Soil Group: (1999) Red shallow loamy duplex
Soil Series: York
Map Unit: 256JcR2
Other Classifications
Great Soil Group: Non-calcic brown soil
Northcote PPF: Dr2.12
Soil Profile Description
Horizon Depth (cm) Description
A1
0-3
Dark reddish brown (5YR 3/2 moist), brown (7.5YR 4/2 dry) loam; very weak dry
consistence; weak, fragment structure; few gneiss coarse gravel sized coarse fragments;
A3
3-10
AB
10-15
B
15-20
B
20-30
BC
30-45
CB
45-60
C
60-90
many very fine roots; clear boundary.
Dark reddish brown (5YR 3/4 moist), reddish brown (5YR 4/4 dry) fine sandy clay loam;
strong dry consistence; massive structure; few gneiss coarse gravel sized coarse fragments;
few roots.
Dark reddish brown (5YR 3/4 moist), reddish brown (5YR 4/4 dry) fine sandy clay loam;
strong dry consistence; massive structure; few gneiss coarse gravel sized coarse fragments;
few roots; clear boundary.
Dark red (2.5YR 3/6 moist) heavy clay; strong dry consistence; moderate, angular blocky
structure.
Dark red (2.5YR 3/6 moist) heavy clay; strong dry consistence; moderate, angular blocky
structure; few gneiss medium gravel sized coarse fragments; diffuse boundary.
Dark red (2.5YR 3/6 moist) heavy clay; many fine prominent white (5YR 8/1 moist)
mottles; strong dry consistence; weak, angular blocky structure; abrupt, irregular boundary.
Dark red (2.5YR 3/6 moist) medium clay; weak moderately moist consistence; massive
structure; abundant angular quartz coarse gravel sized coarse fragments; diffuse boundary.
Lab Results (501 P 0555)
Basic Chemistry
Sample
Horizon Match
Depth
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
0-3
3-10
10-15
15-20
20-30
30-45
45-60
60-90
A
A
A
A
A
A
A
A
pH_w
EC
5.6
6.4
7.1
7
7
7.1
7.3
7.4
Cl_sol
8.1
2.7
2.4
2.1
1.5
3
2.4
1.8
LOI
6
6
6
6
6
6
6
6
OC_wb
13.7
5.4
5.3
6.3
6.6
7.2
4.6
3.5
N_kjel
6.39
P_extract P_HCl
0.238
0.067
0.051
0.025
0.04
0.046
0.01
0.004
8
1
1
4
2
2
2
2
P_HCO3 S_xrf
300
200
200
100
100
8
1
1
4
2
2
2
2
K_HFHN Fe_xrf
O3
0.06
1.1
0.02
1.2
0.01
1.2
0.01
1
0.02
0.8
Exchangeable Cations
Sample
Horizon Match
Depth
1
2
3
4
6
7
8
1
2
3
4
6
7
8
0-3
3-10
10-15
15-20
30-45
45-60
60-90
A
A
A
A
A
A
A
CEC
Exch_Ca Exch_Na Exch_K Exch_Mg Sum_Exc ESP
h
25.1
10.4
0.22
1.09
1.7 13.41 (1)
16.9
9.2
0.21
0.86
1.8 12.07 (1)
15.1
9.9
0.39
0.86
3.4 14.55 (1)
17.9
3.1
0.54
0.68
4.5 8.82 (1)
17.8
10.3
0.49
1.01
4.9 16.7 (1)
15.7
9
0.59
0.27
5.5 15.36 (1)
12.5
7.6
0.75
0.16
3.8 12.31 (1)
Particle Size Analysis
Sample
Horizon Match
Depth
1
2
3
4
5
6
7
1
2
3
4
5
6
7
0-3
3-10
10-15
15-20
20-30
30-45
45-60
A
A
A
A
A
A
A
gt2mm
s200_200 s20_200u silt
0u
19
26
39
18
22
45
19
30
37
13
29
33
6
26
22
3
23
40
35
clay
12
17
16
14
9
12
15
18
28
41
8
18
CaMgR_ Exch_cats Base_stat
Exch
%
1 (2) 6.12 (1)
53 (2) 111.75 (2)
1 (2) 5.11 (1)
71 (2) 80.47 (2)
3 (2) 2.91 (1)
96 (2) 80.83 (2)
3 (2) 0.69 (1)
49 (2) 31.5 (2)
3 (2)
2.1 (1)
94 (2)
4 (2) 1.64 (1)
98 (2) 85.33 (2)
6 (2)
2 (1)
98 (2) 123.1 (2)
1.1
3.9
2.5
0.5
0.6
1.2
1.9
1.5
8
8
A
60-90
13
58
28
8
10