Agency Code: 501 Project Code: P Site Code: 0366
Described by: M J Mulcahy Date: 05/06/1958

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

Location: MGA94 Zone: 50  485129 mE  6475910 mN Elevation (m): 213  Map sheet:  Northam 100K
Location notes: L.D. Sheet 2/80:roadside - north boundary of block 20/416:Woodlands Estate - Old Goldfields Road:
Site notes: 

Landform
Landform pattern: rises
Relief/modal slope: rolling rises
Landform element:
Morphological type:
Pattern Relief:  rises

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

Geology/parent material
Soil parent material: gneiss

Species List
Tallest: Acacia acuminata, Eucalyptus foecunda, Eucalyptus loxophleba

Current Classification
WA Soil Group: (1999) Red deep sandy duplex
Map Unit: 256JcYO

Other Classifications
Great Soil Group:  Red-brown earth

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-18 | Dark reddish brown (5YR 3/4 moist) loamy sand; loose consistence; clod structure; few gneiss coarse fragments; gradual boundary.
A3 | 18-33 | Dark reddish brown (5YR 3/3 moist) loamy sand; loose consistence; clod structure; abundant gneiss coarse fragments; sharp boundary.
B21 | 33-53 | Reddish brown (5YR 4/3 moist) medium clay; weak consistence; granular structure; common gneiss coarse fragments; gradual boundary.
B22 | 53-61 | Brown (7.5YR 4/2 moist) medium clay; abundant gneiss coarse fragments.

Lab Results (501 P 0366)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | EC | Cl_sol | LOI | OC_wb | N_kjel | P_HCl
1 | 1 | A | 0-18 | 7.3 | 3.6 | 36 | 2.8 | 0.84 | 0.053 | 110
2 | 2 | A | 18-33 | 6.4 | 11.9 | 150 | 3.1 | | | 120
3 | 3 | A | 33-53 | 6.7 | 20.5 | 234 | 6.6 | | 0.069 | 120
4 | 4 | A | 53-61 | 7.5 | 13.1 | 126 | 6.4 | | | 120

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 | 0-18 | 4.4 | 0.24 | 0.52 | 0.6 | 2.8 | 2.8 | 5.76 (1) | 4 (3) | 7.33 (1) | 72 (2)
3 | 3 | A | 33-53 | 12.2 | 0.4 | 0.58 | 5.3 | 3.8 | 3.8 | 18.48 (1) | 2 (3) | 2.3 (1) | 36.96 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | gt2mm | s200_2000u | s20_200u | silt | clay
1 | 1 | A | 0-18 | 20 | 39 | 42 | 8 | 8
2 | 2 | A | 18-33 | 45 | | | |
3 | 3 | A | 33-53 | 45 | 27 | 16 | 5 | 50
4 | 4 | A | 53-61 | 48 | | | |