Stig Östlund

onsdag, mars 30, 2011

Uranium Mining Techniques


Mining methods have been changing. In 1990, 55 percent of world production came from underground mines, but this shrunk dramatically to 1999, with 33 percent at the time. Since the year 2000, new Canadian mines have increased the global representation of underground mines again.

Read more: http://resourceinvestingnews.com/14597-uranium-mining-techniques.html


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