Gambier Karst Region - South Australia & Victoria

Dune Limestone Caves

Selected photographs and diagrams

To view full size images, click on the displayed image.

Horizontal bedding: a beach calcarenite associated with the dune limestone.
S9510-08.5L23.Beds.jpg

Syngenetic subsidence structures in thin-bedded beach sands. These would have been moving before the sand was completly cemented. They have since been bettter cemented and are capable of holding up the cave roof.
S9510-10.5L23.Subs.jpg

Another example of syngenetic subsidence structures
with patches of moonmilk
S9510-09.5L23.Subs.jpg

Horizontal ceiling has been cut through dune bedding. This would have been an old water table.
B8101-16.3BR.Flat.jpg

Low horizontal cave development at the base of a dune, at the level of an adjoining swamp
C9604-08.3CD28.Crawl.jpg

Abandoned stream passage just above the contact between dune limestone and an underlying basalt flow.
C0202-12.3P-14.TheSprings.jpg