Saharan ‘carpet of tools’ is earliest known human-made landscape

11 marzo 2015

A new intensive survey of the Messak Settafet escarpment, a massive outcrop of sandstone in the middle of the Saharan desert, has shown that stone tools occur «ubiquitously» across the entire landscape: averaging 75 artefacts per square meter, or 75 million per square kilometer.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JfWiy875gUk/150311160254.htm

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