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Diagrammatic representations of Terrace development

The following animation shows how terraces are created by stream activity over hundreds of thousands of years. Click on the animation to start.

A transcript of the terraces animation is available.

Diagram: Figure 1
Figure 1: Deposition of the sediments on which the Briagolong Unit soils are formed.

Diagram: Figure 2
Figure 2: Erosion of the Briagolong land-surface following a period of uplift or sea level change

Diagram: Figure 3
Figure 3: Valley in-filled with later sediments on which the Stratford Unit soils are formed

Diagram: Figure 4
Figure 4: Erosion of the Stratford Unit land-surface following a period of uplift or seal level change.

Diagram: Figure 5
Figure 5: Valley in-filled with later sediments (Qp6a, 6b) - see table below

Geological Subdivision
Landform Elements
Map Unit
Terrace plain
Stagnant alluvial plain




Diagram: Figure 6
Figure 6: Major sea level change associated with the last ice age resulted in erosion of late Pleistocene sediments

Diagram: Figure 7
Figure 7: Present floodplains of Newry, Thomson, and La Trobe Units become in-filled with sediments

Diagram: Figure 8
Figure 8: Generalised cross-section between Heyfield and north of Latrobe River near Rosedale (diagrammatic only - not to scale)

Diagram: Figure 9
Figure 9: Generalised cross-section across Avon River and related terraces (diagrammatic only - not to scale)

Diagram: Figure 10
Figure 10: Generalised indication of past sea levels
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