Travelling Australia
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Painted Desert
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Various shades of colour in an outcrop. The role of the harder silcrete cap in preventing erosion of the lower, softer material is clear; but the silcrete cap is itself being slowly weathered, with pieces broken off on the left, and will eventually be removed allowing the underlying material to weather away.
11 June 2009, Painted Desert, 27° 54'S, 134° 49'E. elevation 182 metres. SA.