COBALT-RICH FERROMANGANESE CRUSTS
12
Figure 5 Concentration of metals of potential economic importance in ferromanganese crusts.
Source:modi ed fromHeinandKoschinski,2012
Concentration of cobalt, nickel, and other metals of potential economic importance in ferromanganese crusts
1 tonne
Grams per tonne
4 000
6 200
1 000
100
Note: the area of the squares is proportional to the grams
per tonne value for each mineral. For comparison
purposes, the area of the entire page represents
proportionally one tonne.
Nickel
Copper
Tellurium
Rare Earth
Elements
Molybdenum
Cobalt
Yttrium
North Paci c
crusts
Atlantic
crusts
Indian Ocean
crusts
South Paci c
crusts
