Agency Code: 501 Project Code: JSI Site Code: 1641
Described by: Tim Overheu Date: 07/06/1995

Observation type: soil pit Category: brief description

Location: MGA94 Zone: 50  776617 mE  6266440 mN Elevation (m): 140  Map sheet:  Cocanarup 100K
Location notes: 
Site notes: Gritty medium clay/weathering rock.profile consists almost entirely of small quartz & igneous fragments.a road fill extraction site near the top of the slope down to the alluvial plain that can be seen to s.  
Disturbance: Complete clearing; past cultivation.

Landform
Landform pattern: plain
Relief/modal slope: gently undulating plains
Landform element: plain
Morphological type: simple slope
Pattern Relief:  plain

Surface and Hydrological Properties
Rock outcrop: 0 %  
Surface coarse fragments: few subrounded gravel sized gravel; no stones and boulder sized
Physical properties: loose; ; shallow soil

Geology/parent material
Soil parent material:
Aeolian/colluvial

Vegetation
Surrounded by:  mallee
Notes: Acacia sp, B.media, H.lariana, E.anceps, Hakea sp., Mela.sp., Allocas.sp.

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

Visible erosion, assessed flooding and salinity
no flooding, no ponding, no salinity.

Current Classification
WA Soil Group: (1999) Grey shallow sandy duplex, (domed)
Australian Soil Classification: (2002) Yellow Sodosol
ASC confidence: moderate
Soil Series: UMBURRA (provisional)
Map Unit: 244Hm_2

Other Classifications
Northcote PPF: Dy5.42

Soil Profile Description

Horizon | Depth (cm) | Description
Ap | 0-10 | Dark greyish brown (10YR 4/2 moist) loamy sand; no mottles; loose moist consistence; sandy fabric; apedal, single grain structure; no segregations segregations; 2% subrounded gravel medium gravel sized coarse fragments; non-dispersing, non-slaking, non water repellent; no pan; pH 6.7 (1:5 water); EC 5 mS/m; abrupt boundary.
A21 | 10-25 | Pale brown (10YR 6/3 moist) sand; no mottles; loose moist consistence; sandy fabric; apedal, single grain structure; no segregations segregations; 2% subrounded gravel medium gravel sized coarse fragments; non-dispersing, non-slaking, non water repellent; no pan; pH 6.9 (1:5 water); EC 16 mS/m; abrupt, tongued boundary.
B21 | 12-30 | Yellowish red (5YR 5/8 moist) sandy light medium clay; few fine faint olive yellow (2.5Y 6/6 moist)  mottles; firm moderately moist consistence; smooth-ped fabric; pedal, strong, 50-100 mm, columnar structure; no segregations segregations; no coarse fragments; slow dispersion, non-slaking, non water repellent; no pan; pH 6.8 (1:5 water); EC 12 mS/m; clear boundary.
B22 | 30-45 | Yellow (10YR 7/8 moist) sandy light medium clay; no mottles; firm moderately moist consistence; apedal, massive structure; no segregations segregations; no coarse fragments; slow dispersion, non-slaking, non water repellent; no pan; pH 7 (1:5 water); EC 10 mS/m.