Murphy's Haystacks

Murphy's Haystacks are inselberg rock formations located at Mortana, between Streaky Bay and Port Kenny on the Eyre Peninsula in South Australia.
They were weathered and sculpted into their present form about 100,000 years ago. Geologists say the Hay Stacks are composed of pink granite from the Hiltaba suite of rocks whch were laid down some 1500 million years ago. Amazingly these beautiful pink granites were formed at a depth of 7 to 10 kilometres below the earth's surface. Today when we look at Murphy's Hay Stacks we see these Hiltaba granites exposed on the surface. Clearly a very great deal of erosion has occured since the granite's formation.
LOve the colourings
posted September 13th, 2017  
So interesting, what fabulous rocks.
posted September 13th, 2017  
They're amazing rock formations. It looks like you had more pleasant weather conditions there than we had.
posted September 13th, 2017  
Amazing formations Heather!
posted September 13th, 2017  
Great rock formations, a super capture. Fav!! 😀
posted September 13th, 2017  
Great formations and thanks for the info Heather
posted September 13th, 2017  
Wonderful colour in this great formation.
posted September 14th, 2017  
These look fabulous. What a history.
posted September 14th, 2017  
@littleconnie @365projectorgjenfurj @terryliv @carolmw @ribbet9 @merrelyn @onewing @onewing Thanks everyone for lovely comments. The weather was very windy and only snippets of sunshine so pleased to get this photo.
posted September 15th, 2017  
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