Recent Coarse River Sediments (rc)

Map: Recent Coarse River Sediments

Geology

Recent (contemporary) channel deposits from the Avon River.

Landform

Meander plain.

Recent Coarse River Sediments mapping unit beside the Avon River.

Original Vegetation

The original vegetation has been described as riverine scrubs and swamps (Lunt, 1997).

Soils

The soils are comprised of undifferentiated sands, gravels and small cobbles.

Chemical and Physical Analysis

No pits have been dug in this map unit, however, one site was examined by Aldrick et al. (1992).

Profile 17, Stratford 1, Aldrick et al. (1992)

Depth cm	Texture	pH	EC dS/m	Cl %	Nitrogen %	Carbon %	Ca meq%	Mg meq%	K meq%	Na meq%	H meq%	ESP %	Gravel %	Coarse sand %	Fine sand %	Silt %	Clay %	LAT %
1-10	S	6.0	0.04	.003	0.046	0.54	0.8	0.8	0.5	<0.1	1.0	<1		62	34	2	2
20-30	S	5.8	0.03	.001	0.047	0.047	1.6	0.8	0.4	<0.1	4.7	<1	2	22	66	6	5
30-60	S&GR	5.8	0.01	.001			0.7	0.4	0.1	<0.1	0.9	<1	1	81	17	<1	3
90-120	S	6.5	0.01	.001			1.0	1.0	0.1	<0.1	1.2	<1		51	44	4	2

The following abbreviations are used to describe field texture: S - sand; LS - loamy sand; ClS - clayey sand; SL - sandy loam; L - loam; CL - clay loam; SCL - sandy clay loam; SC - sandy clay; FSCL - fine sandy clay loam; FSC - fine sandy clay; LC - light clay; MC - medium clay; HC - heavy clay; GR - gravel; ZL - silty loam; ZCL - silty clay loam; ZLC - silty light clay; ZMC - silty medium clay.

Aldrick et al. (1992) does not provide LAT data.

Other symbols include: pH - analysed in water; EC - electrical conductivity; Cl - chloride; Ca - exchangeable calcium; Mg - exchangeable magnesium, K - exchangeable potassium; Na - exchangeable sodium; H - exchangeable hydrogen; ESP - exchangeable sodium percentage.

Land Use

As the area is frequently flooded, only grazing and gravel extraction is carried out on this land.

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