In order to log this cache you need to e-mail the answers of the following questions via my profile.
1) What are aeolianites and how are they formed?
2) How does the Nahoon formation differ from the Nanaga and Schelm Hoek Formations?
3) Take a photo of yourself with the "Flat Rocks" visible in the background. (Optional)
4) What is on display at the information board at S 33° 59.952 E 25° 41.068 in the parking lot?
5) Explain the texture, color of the rock and what else you can see in the rock.
The Nahoon Formations is a relatively new formation in terms of the geologic time scale having its existence in the Quaternary Period which covers a time scale from about 2 million years ago to present. The geological evolution and geomorphologic evolution of our region is highly complex and driven by climatic variation and associated sea level fluctuations.
This calcareous sandstone formation attains thicknesses of up to about 50 metres and has had a significant effect on the weathering rates of the Eastern Cape Province coastline. These aeolianites (dune rock) typically protrude and has coastal headlands into the sea, producing Kwaaihoek near Boknes (Diaz Cross), Bushman’s River Mouth, Bats Cave (Great Fish River), Nahoon Point (East London) and Flat Rocks (Port Elizabeth).
The terrestrial aeolianites of the Nanaga, Nahoon and Schelm Hoek Formations, generally contain only a sparse fossil to subfossil biota. The most obvious groups here are a small range of land snails as well as calcretized rhizoliths (root casts) and possible termitaria.
The Nahoon formation differs from the Nanaga and Schelm Hoek formations in that it has a higher level of cementation than the generally poor consolidated and younger sands of the others.
Below is a schematic of the different formations that form part of the Algoa Group that is found in the area:
Source:
http://www.sahra.org.za/sites/default/files/heritagereports/Coega%20IDZ%20Fossil%20Heritage%20PIA%20Part2.pdf