Agency Code: 501 Project Code: COR Site Code: 2006
Described by: Bill Verboom Date: 04/03/1998

Observation type: soil pit Category: full description
Lab Analyses: Detailed chemical and physical analyses.

Location: MGA94 Zone: 50  534834 mE  6435297 mN Map sheet:  
Location notes: 
Site notes: Gravel % by weight---Rounded convex hill---midslope position---aeloian yellow sand deposition over

Landform
Landform pattern:	Slope:  4 %
Relief/modal slope:
Landform element:
Morphological type: mid-slope	Slope curvature: convex slope
Pattern Relief: 

Surface and Hydrological Properties
Rock outcrop:   
Surface coarse fragments: 
Physical properties: 

Current Classification
WA Soil Group: (1999) Yellow deep sand, acid---reticulite @ 85 cm
Map Unit: 259Ke_2

Soil Profile Description

Horizon | Depth (cm) | Description
A1p | 0-12 | Yellowish brown (10YR 5/4 moist) fine sand; very weak dry consistence; apedal, massive structure; rapid permeability, non-calcareous; pH 5.4 (1:5 water); EC 0 (mS/m (1:5)); notes: Tillage layer: some lenticular structure; clear, smooth boundary.
A21 | 12-42 | Brownish yellow (10YR 6/6 moist) fine sand; very weak dry consistence; apedal, massive structure; rapid permeability, non-calcareous; pH 4.5 (1:5 water); EC 0 (mS/m (1:5)); notes: Stratified aeloian yellow sand---sharp charcoal layers---pale root channel caused by iron reduction by organic matter; sharp, smooth boundary.
A22e | 42-58 | Pale brown (10YR 6/3 moist) fine sand; very weak dry consistence; apedal, massive structure; rapid permeability, slow dispersion, non-calcareous; pH 4.3 (1:5 water); EC 0 (mS/m (1:5)); notes: Very few gravels at surface of layer------charcoal with weakly expressed layers---old surface crust stained/incorp with dispersed yellow sand or clay; clear, smooth boundary.
A23ce | 58-85 | Pale brown (10YR 6/3 moist) sandy gravel texture; very weak dry consistence; apedal, massive structure; 81% ferruginous ironstone medium gravel sized coarse fragments Hard; rapid permeability, non-calcareous; pH 5.1 (1:5 water); EC 0 (mS/m (1:5)); notes: Fine sandy gravel---Dense gravels not grading---quite mixed; abrupt, tongued boundary.
B2w | 85-100+ | Yellow (10YR 7/6 moist) sandy loam; many medium red (2.5YR 4/8 moist)  redox mottles and  medium yellowish red (5YR 5/8 moist)  redox mottles; apedal, massive structure; 2% ferruginous ironstone medium gravel sized coarse fragments Hard and  ferruginous ferricrete coarse fragments reticulite; moderately rapid permeability; vesicular, pan; pH 4.7 (1:5 water); EC 0 (mS/m (1:5)); notes: Yellowish reticulite---lacking abundance of grey channels---with orange mottles.

Lab Results (501 COR 2006)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_CaCl2 | OC_wb | Fe_CIDI
1 | 1 | A | 0-12 | 5.1 (2) | 1.49 (1) | 0.29 (1)
2 | 2 | A | 12-42 | 3.8 (2) | 1.76 (1) | 0.42 (1)
3 | 3 | A | 42-58 | 3.9 (2) | 1.27 (1) | 0.2 (1)
4 | 4 | A | 58-85 | 4.5 (2) | 0.64 (1) | 0.19 (1)
5 | 5 | A | 85-100 | 3.9 (2) | 0.61 (1) | 1.34 (1)

Exchangeable Cations

Sample | Horizon | Match | Depth | CEC | Exch_Ca | Exch_Na | Exch_K | Exch_Mg | Sum_Exch | ESP | CaMgR_Exch | Exch_cats% | Base_stat
1 | 1 | A | 0-12 | 2.3 (4) | 1.4 (4) | 0.14 (4) | 0.06 (4) | 0.3 (4) | 1.9 (1) | 6 (2) | 4.67 (1) | 80 |
2 | 2 | A | 12-42 | 1.7 (4) | 1.1 (4) | 0.02 (4) | 0 (4) | 0.1 (4) | 1.22 (1) | 1 (2) | 11 (1) | 72 |
3 | 3 | A | 42-58 | 1.7 (4) | 0.9 (4) | 0.02 (4) | 0.02 (4) | 0.1 (4) | 1.04 (1) | 1 (2) | 9 (1) | 61 |
4 | 4 | A | 58-85 | 1.3 (4) | 1 (4) | 0 (4) | 0.02 (4) | 0.2 (4) | 1.22 (1) | 0 (2) | 5 (1) | 93 |
5 | 5 | A | 85-100 | 6.5 (4) | 1.6 (4) | 0.02 (4) | 0.04 (4) | 0.4 (4) | 2.06 (1) | 0 (2) | 4 (1) | 31 | 8.24 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | gt2mm | s500_2000u | s200_500u | s20_200u | silt | clay
1 | 1 | A | 0-12 | 0 | 35 | 49 | 14 | 2 | 0
2 | 2 | A | 12-42 | 0 | 9 | 68 | 22 | 1 | 0
3 | 3 | A | 42-58 | 0 | 28 | 50 | 22 | 0 | 0
4 | 4 | A | 58-85 | 81 | 18 | 46 | 35 | 1 | 0
5 | 5 | A | 85-100 | 2 | 30 | 27 | 13 | 5 | 25