Geology of Victoria

The low flat northwest of the state that borders the Murray River was once the bed of an ancient sea and the land is much afflicted with salinity.

Central and western Victoria comprise world-class vein-hosted gold deposits, hosted mostly in the extensive Ordovician turbidites.

The sequence of events associated with the building of southeastern Australia reveals that mineralization and magmatic processes are intimately linked with the tectonic development of the region.

The history is dominated by east–west compression of predominantly oceanic sedimentary and igneous rocks and their resultant folding, faulting and uplift.

[4] Granites comprise 20% of the total exposed area of the Lachlan Fold Belt and fall within an age range of 440 to 350 MYA.

The second major structural break in Victoria is the Baragwanath Transform, which occurs along the eastern side of the Selwyn Block.