Wednesday, 24 February 2021


The beautiful shades of yellow and orange of these sandstone cliffs are typical of the Eastern Free State.  The Clarens Formation of windblown sand that has been weathered to form these cliffs, was deposited in desert conditions about 200 million year ago.  This aeolian formation is covered by the basalt flows that followed about 20 million years later.  The basaltic deposits can exceed 2 000 metres in depth in some places.

OJ - fascinated by the geology of the Golden Gate Highlands National Park.


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