Agency Code: 501 Project Code: P Site Code: 0177
Described by: L W Pym Date: 13/05/1953

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

Location: MGA94 Zone: 50  408949 mE  6477715 mN Elevation (m): 15  Map sheet:  Wooroloo 100K
Location notes: From roadside 2 chains north of south east corner of Lot 2:
Site notes: 
Disturbance: Extensive clearing.

Landform
Landform pattern: alluvial plain
Relief/modal slope: level plain
Landform element: plain
Morphological type:
Pattern Relief:  alluvial plain

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

Geology/parent material
Soil parent material: unconsolidated material (unidentified)
Probably detritus from escarpment

Vegetation
Notes: Vines.

Species List
Tallest: Eucalyptus calophylla, Xanthorrhoea preissii

Land use
Surrounds: Horticulture (intensive land use, includes orchards and vineyards).

Current Classification
WA Soil Group: (1999) Grey deep sandy duplex
Australian Soil Classification: (2002) Mesotrophic Mottled-Subnatric Grey Sodosol
ASC confidence: high
Soil Series: Mongin sand (provisional)
Map Unit: 213Pj__Mos

Other Classifications
Great Soil Group:  Podzol

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-9 | Dark grey (10YR 4/1 moist) humic loamy coarse sand; weak moist consistence; weak structure; few roots; clear, irregular boundary.
A2 | 9-46 | Light grey (10YR 7/2 moist) coarse sand; very weak moist consistence; single grain structure; few siliceous gravel coarse fragments; clear, smooth boundary.
B1 | 46-66 | Light grey (10YR 7/2 moist) gritty medium clay; yellow (10YR 7/8 moist)  mottles and yellowish brown (10YR 5/6 moist)  mottles; moderately sticky; many ferruginous gravel coarse fragments; clear, irregular boundary.
B21c | 66-91 | Light grey (10YR 7/1 moist) gritty medium clay; yellowish brown (10YR 5/6 moist)  mottles and brown (10YR 4/3 moist)  mottles; many ferruginous concretions; few ferruginous gravel coarse fragments.

Lab Results (501 P 0177)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | EC | Cl_sol | LOI | OC_wb | N_kjel | P_HCl
1 | 1 | A | 0-9 | 5.6 | 5.1 | 12 | 6 | 2.77 | 0.154 | 80
2 | 2 | A | 9-46 | 5.9 | 4.2 | 18 | 2 | | |
3 | 3 | A | 46-66 | 6.4 | 5.7 | 30 | 5.6 | | | 10
4 | 4 | A | 66-91 | 6 | 6.3 | 30 | 6.4 | | |

Exchangeable Cations

Sample | Horizon | Match | Depth | Exch_Ca | Exch_Na | Exch_K | Exch_Mg | Exch_ac | Exch_H | Sum_Exch | ESP | CaMgR_Exch | Base_stat
1 | 1 | A | 0-9 | 2.8 | 0.11 | 0.25 | 1.1 | 8.3 | 8.3 | 4.26 (1) | 3 (3) | 2.55 (1) | 42.6 (2)
3 | 3 | A | 46-66 | 1 | 0.34 | 0.13 | 2.3 | 2.7 | 2.7 | 3.77 (1) | 9 (3) | 0.43 (1) | 12.16 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | gt2mm | s200_2000u | s20_200u | silt | clay
1 | 1 | A | 0-9 | 6 | 49 | 34 | 1 | 10
2 | 2 | A | 9-46 | 7 | | | |
3 | 3 | A | 46-66 | 60 | 58 | 7 | 2 | 31