Innes National Park is famous for its gypsum.
Other geological features are easily found, such as these beautiful layered sediments bordering ‘our’ beach.
A quick email to my geological brains trust – thanks Dad – resulted in the following information:
They all seem to be limestone layers with differing textures and methods of formation. There is a possibility that they are salt lake deposits like those in the adjacent National Park, but I also think that there have been pedological (soil forming) processes at work.
He’s going to do some more research and let me know.