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In search of the world's oldest cave etching"I'M DRIVING across South Australia's featureless but iconic Nullarbor Plain when suddenly the red earth falls away into a black abyss. "Dramatic really is the word for it," says Keryn Walshe. Fifty metres wide and 25 metres deep, the sinkhole is a gateway to the mysterious Koonalda caves.Walshe, an archaeologist from the South Australian Museum, is leading a group of researchers and members of the Mirning people, the traditional Aboriginal owners of the land, into the caves. It has taken us 6 hours to drive here, after flying in from Adelaide, the nearest city, 900 kilometres away. We have come to see strange wall markings that may have been a tactile code left by flint miners during the last ice age. The mine might be among the oldest in the world, as may the markings. The flint has clearly been cut away in numerous places and worked into tools, and ash deposits from fires show people have been coming here for tens of thousands of years...." http://www.newscientist.com/article/mg21628954.700-in-search-of-the-worlds-oldest-cave-etching.html |
Posted by thelonious13th December 2012ce |
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