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.

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

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

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

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

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

Geological Subdivision	Landform	Landform Elements	Map Unit
Qp6a	Terrace	Terrace plain	Wooundellah, Winnindoo Crooke
Qp6b	Stagnant alluvial plain	Levee	Clydebank, Tinamba
		Backplain	Denison, Montgomery,
		Dune	Nuntin
		Swamp	Wandocka

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

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

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

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

Figure 10: Generalised indication of past sea levels

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