Agency Code: 501 Project Code: P Site Code: 0234
Described by: Eric Bettenay Date: 06/04/1955

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

Location: MGA94 Zone: 50  390416 mE  6388800 mN Elevation (m): 6  Map sheet:  Pinjarra 100K
Location notes: Junction of roads 8842 and 4264 at Location 197:
Site notes: This sample taken in the crabhole adjcent to profile 1
Disturbance: Complete clearing; never cultivated.

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

Geology/parent material
Soil parent material: unconsolidated material (unidentified)
Alluvium

Vegetation
Notes: cleared. sub.clover, braley grass and pasture.

Species List
Tallest: Myrtaceae spp.

Land use
Surrounds: Grazing (grazing of vegetation planted by man).

Current Classification
WA Soil Group: (1999) Grey non-cracking clay, 621
Soil Series: Greenlands
Map Unit: 213Pj__P5

Other Classifications
Great Soil Group:  Brown clay

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-3 | Light brownish grey (10YR 6/2 moist) clay loam; very weak consistence; clear, smooth boundary.
B11 | 3-20 | Grey (10YR 6/1 moist) sandy clay;  fine reddish brown (5YR 4/4 moist)  mottles; very firm dry consistence, moderately plastic; massive structure; pH 6; diffuse boundary.
B12 | 20-48 | Grey (10YR 6/1 moist) sandy clay; reddish brown (5YR 4/4 moist)  mottles; very firm dry consistence, moderately plastic; massive structure; pH 6; clear, irregular boundary.
B21 | 48-56 | Olive yellow (2.5Y 6/6 moist) medium clay; gray (N 6/0 moist)  mottles; moderately plastic; 20-50 mm, angular blocky structure; pH 7; clear, irregular boundary.
B22 | 56-66 | Olive yellow (2.5Y 6/6 moist) medium clay; moderately plastic; 20-50 mm, angular blocky structure; abundant gypseous nodules; pH 8.5; clear, smooth boundary.
B23 | 66-102 | Olive yellow (2.5Y 6/8 moist) medium clay; moderately plastic; 20-50 mm, angular blocky structure; many gypseous nodules.
B24 | 102-129 | Brown (10YR 5/3 moist) medium clay; light olive grey (5Y 6/2 moist)  mottles; moderately plastic; 20-50 mm, angular blocky structure; many limestone coarse fragments.
| 129+ | Notes: limestone.

Lab Results (501 P 0234)

Basic Chemistry

Sample | Horizon | Match | Depth | pH_w | EC | Cl_sol | CaCO3_tot | LOI | OC_wb | N_kjel | P_HCl | K_HFHNO3
1 | 1 | B | 0-2 | 6.1 | 25.9 | 198 | | 11.6 | 4.73 | 0.313 | 230 | 0.09
2 | 2 | C | 2-20 | 6.3 | 3.9 | 30 | | 5.4 | 1.22 | 0.071 | 50 | 0.07
3 | 3 | A | 20-48 | 6.9 | 4.2 | 42 | | 4.4 | | | |
4 | 4 | A | 48-56 | 7.8 | 7.7 | 72 | | 7 | | | |
5 | 5 | A | 56-66 | 9.1 | 25.9 | 78 | 3 | 7.6 | | 0.02 | 20 | 0.02
6 | 6 | A | 66-102 | 9.2 | 53 | 312 | 6.4 | 8.2 | | | |
7 | 7 | A | 102-129 | 9 | 103 | 864 | 13.8 | 10.6 | | | |

Exchangeable Cations

Sample | Horizon | Match | Depth | Exch_Ca | Exch_Na | Exch_K | Exch_Mg | Exch_H | Sum_Exch | ESP | CaMgR_Exch | Base_stat
1 | 1 | B | 0-2 | 6.2 | 1 | 0.37 | 2.6 | 8.2 | 10.17 (1) | 10 (3) | 2.38 (1) | 50.85 (2)
2 | 2 | C | 2-20 | 3.1 | 0.4 | 0.16 | 2 | 6.4 | 5.66 (1) | 7 (3) | 1.55 (1) | 22.64 (2)
5 | 5 | A | 56-66 | 6.6 | 3.6 | 0.32 | 9.2 | | 19.72 (1) | 18 (3) | 0.72 (1) | 37.21 (2)

Particle Size Analysis

Sample | Horizon | Match | Depth | gt2mm | s200_2000u | s20_200u | silt | clay
1 | 1 | B | 0-2 | 0 | 19 | 36 | 19 | 20
2 | 2 | C | 2-20 | 0 | 21 | 33 | 21 | 25
3 | 3 | A | 20-48 | 1 | | | |
4 | 4 | A | 48-56 | 0 | | | |
5 | 5 | A | 56-66 | 30 | 17 | 17 | 11 | 53
6 | 6 | A | 66-102 | 33 | | | |
7 | 7 | A | 102-129 | 39 | | | |