Geochemical and mineralogical investigations of titaniferous iron ores, west coast of Norway

Studies of four titaniferous iron occurrences in the Sunnmoere district, southwest Norway, lead to the conclusion that they are of magmatic origin, with the possible exception of the Oeyen deposit, a concordant lens in fine-grained gneiss, for which a metasomatic origin cannot be completely ruled out. The ore-bearing olivine gabbro of Oevre Roeddal represents a late intermediate differentiate of a strongly fractionated basaltic magma, and the ores of the Fiska anorthosite and Verkshaugen olivinite are probably more intensely metamorphosed magmatic products of an earlier stage of the Caledonian orogeny.

This record provided courtesy of AGI/GeoRef.