Pseudofossils - 12 Apostles, Victoria

I spotted some beautiful faux fossils in the sandy-limestone used to make the underpass at the 12 Apostles while I was there with the JMSS geology class a month ago. These dendritic patterns are formed by the deposition of minerals by hydrothermal fluids. They are often mistaken for plant fossils by the geologically-uneducated. Still, they're quite pretty.

 

Sandy-limestone? in the underpass at the 12 Apostles, Victoria.

How I feel about geology

 

Medium grained, feldspathic sandstone from the Otway Basin with a tiny bit of coal.

Fancy folds - Chile

 

A fold in Rio Leon Park, Chile. (-52.740004, -72.148885) Fold is approximately 2.8km wide.

 

Parasitic folds near the hinge - wavelength of ~250m

 

Second fold to the east (400m wide), faulted off the main complex?