Tuesday, June 14, 2011

Devil's Marbles

We stopped at a cool place on the way to Alice Springs.  The Devil's Marbles are huge rounded granite boulders precariously balanced on each other.  According to the Parks and Wildlife Commission of the Northern Territory, "the marbles were formed from an upsurge of molten rock that cooled and became solid beneath a layer of sandstone.  The solidifying granite caused vertical and horizontal fractures creating rectangular blocks.  Over time water infiltrated the cracks breaking down the sandstone and then the granite.  As a result, rounded granite boulders perched on top of each other have been revealed."

We saw a dingo too!


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