Agency Code: 501 Project Code: PHN Site Code: 0001
Described by: Martin Wells Date: 17/04/1982

Location: MGA94 Zone: 50  391639 mE  6426449 mN Map sheet:  Fremantle 100K
Location notes: 
Site notes: orc - R15, ?magnesium, salt crystals, abundant gypsum. Salinity at depth. Subsoil black in some areas. Clay extraction by ALCOA for lining dams - 60-300cm. Farmer - shell fragments at depth in nearby pit.

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

Surface and Hydrological Properties
Rock outcrop:   
Surface coarse fragments: no gravel sized; no stones and boulder sized
Physical properties: Hardsetting; 

Visible erosion, assessed flooding and salinity
possibly subject to salinity.

Current Classification
WA Soil Group: (1999) Hard cracking clay
Soil Series: 16
Map Unit: 213Pj__P4

Other Classifications
Northcote PPF: Ug6.1

Soil Profile Description

Horizon | Depth (cm) | Description
A1 | 0-10 | Very dark grey (10YR 3/1 moist) medium clay; rough-ped fabric; strong structure; pH 6; gradual boundary.
B1 | 10-45 | Very dark grey (10YR 3/1 moist) medium clay; rough-ped fabric; moderate structure; pH 7; diffuse boundary.
B21 | 45-80 | Very dark greyish brown (10YR 3/2 moist) medium clay; rough-ped fabric; moderate structure; gradual boundary.
B22 | 80-100+ | Dark greyish brown (10YR 4/2 moist) medium clay; rough-ped fabric; moderate structure; pH 7.5.