Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
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.
