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Sun Mar 15, 2015, 10:54 AM

Saharan 'carpet of tools' is earliest known human-made landscape

Saharan 'carpet of tools' is earliest known human-made landscape

http://feedproxy.google.com/~r/sciencedaily/strange_science/~3/JfWiy875gUk/150311160254.htm?utm_source=feedburner&utm_medium=email

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.

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