JPG Submerged mudcracks indicate a lower watertable in the past. The laminated mud suggests an even earlier lake deposit. Click it for a 78kb. JPG Straws in a dune limestone cave. Click it for a 91kb.
Fur seals occupy some of the sea caves near Portland.
The solution pipes form excellent pitfall traps and thus bone deposits of Quaternary age have been found in a number of caves. The most important, and world famous, bone deposit is in the Victoria Fossil Cave at Naracoorte, but other significant sites have been found in both states, including some underwater bone deposits in the cenotes. The Tertiary limestones in the Mount Gambier area have bands of flint nodules which make excellent stone tools. Evidence of aboriginal mining of flint is seen in several caves, as is also aboriginal art in the form of scratch marks and finger marks. Volcanic Caves Lava tubes, and other pseudokarst features are associated with the volcanic region of western Victoria.