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Nickel 2006
Magmatic Nickel Sulphide Deposits
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In the field on the Duluth Complex In the field on the Duluth Complex

Studying and discussing the setting and exposure of the Duluth Complex and mineralisation in the field in Minnesota, USA with Rich Patelke of PolyMet Mining and Mark Severson of the Natural Resources Research Institute at the University of Minnesota.
Photographs by Mike Porter

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