January 2004
Volume 56    Issue 1

Thinking outside the box -- new ways to close old tailing basins

Mining Engineering , 2004, Vol. 56, No. 1, pp. 23-29
Eger, P.; Johnson, A.; Dewar, S.; Anderson, B.; Churak, P.

Seventy percent of the United States iron production comes from Minnesota’s Mesabi Iron Range. Large openpit mining techniques are used to recover the taconite ores, which typically contain about 25 percent magnetic iron (Fe3O4).

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