Ni-Cu-PGE Deposits in North America - ADIMB
Ni-Cu-PGE Deposits in North America - ADIMB
Ni-Cu-PGE Deposits in North America - ADIMB
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Bird River<br />
belt<br />
• 2745 Ma<br />
• 3.6 Mt 21%<br />
Cr 2 O 3<br />
• 20 to 30% Cr 2 O 3<br />
• 40 to 44% Cr 2 O 3<br />
<strong>in</strong> chromite,<br />
Cr/Fe between<br />
1 and 1.36<br />
(Bateman,<br />
1945)<br />
42