A large ultramafic body crops out on the coast of Nordland at Torsvik just north of Ørnes. It is surrounded by amphibolite facies rocks of the Meløy Group. The main rock-types are (olivinc) - carbonate-orthopyroxenites, tremolite-orthopyroxenites and tremolite rocks. Detailcd petrological and chemical studies of both whole-rocks and minerals indicate that the major rock groups are idcntical to those of the type sagvanditic associations in Troms. Other bodies from adjacent areas appear to be similar. The Torsvik sagvandite represents the best exposed body of its type so far describcd from Norway.
The Torsvik sagvandite body, North Norway