Earth’s Oldest Nickel Bearing Crater Discovered

 

http://www.universetoday.com/96047/oldest-impact-crater-on-earth-discovered-in-greenland/

 

http://www.canada.com/news/national/Ancient+Greenland+crater+find+good+news+Canadian+nickel+miner/6890084/story.html

 

http://www.canadianminingjournal.com/press-releases/story.aspx?id=1001531391