History of exploration of the nickel resources of the Råna Intrusion, Nordland, Norway

The report gives a history of the discovery and exploration of the Råna layered mafic/ultramafic intrusion in Nordland county, with particular emphasis on the Bruvann Ni-Cu-Co mineralisation, in the NW part of the intrusion, which consists predominantly of disseminated sulphides in layers of peridotite. The tonnage and grade were calculated in 1975 to be 43.6 Mt grading 0.33% sulphide-bound Ni, 0.08% Cu and 0.015% Co (cut-off 0.15% sulphide-bound Ni). The Bruvann ore bodies also include lesser, irregular bodies of massive sulphide containing up to 3-4% Ni. The first half of the report is based on a draft written by C. O. Mathiesen before his retirement in 1997: he died in 2013.

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Available:
NGU-biblioteket
Series:
NGU-rapport
Series nr:
2017.031
Page number:
34
ISSN:
0800-3416
Document type:
Rapport
Fylke:
Nordland