Platinum-group Mineral Assemblages and Chromite Composition in the Altered and Deformed Bacuri Complex , Amapa , Northeastern Brazil

@inproceedings{Prichard2001PlatinumgroupMA,
  title={Platinum-group Mineral Assemblages and Chromite Composition in the Altered and Deformed Bacuri Complex , Amapa , Northeastern Brazil},
  author={Hazel M. Prichard and S{\'A} HAROLDOS. and Peter C. Fisher},
  year={2001}
}
In the Bacuri complex, Amapa, Brazil, there is good evidence for Pd mobility both during serpentinization and lateritization. In non-lateritized, serpentinized samples, Pd bismuthide occurs with chalcopyrite in chlorite-filled veins that cross-cut serpentine and chromite probably only a few tens of micrometers from the source of the platinum-group elements (PGE). Low Pt/Pd values of less than one are characteristic of magmatic values, and sporadic higher values of up to 4 indicate partial… CONTINUE READING

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