Rutile deposits in Norway. Vol. 1: Text.
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(Forkortet) Important rutile deposits in Norway are two of main types: eclogite rutile deposits in Western Norway and metasomatic rutile deposits in the Bamble province of southernmost Norway. Eclogite deposits formed by the metamorphic tranformation of Proterozoic mafic rocks during Caledonian high-pressure metamorphism at 400 Ma. Rutile-bearing eclogites are found in various geologicl sub-provinces from the Bergen region in the south to the Kristiansund region in the north. The metasomatic rutile deposits, such as various rutile-bearing amphibolites and albitites in the Bamble geological province in the southernmost Norway, formed by the metasomatic tranformation of ilmenite-bearing gabbroic and amphibolitic rocks at approx. 1150 Ma.