MANGANESE NODULES
17
Source: U.S. Geological Survey, MineralsYearbook series.
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
Recoverable cobalt in tonnes
Increasing land-based cobalt production
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Year
Figure 13 Increase in cobalt production. (Wilburn, 2012).
Figure 14 Current sources of cobalt. After Wilburn 2012.
Sources of cobalt production
From
primary
cobalt
operations
Byproduct from
copper industry
and other
Byproduct from
nickel industry
Source:Wilburn, 2012
