Abstract
Abstract The Bedrock at the Meraslinka Graphite Deposit The Meraslinka graphite deposit is situated on the Torne River at the border between the City of Kiruna and the parish of Junosuando, Northern Sweden. The bedrock consists of a series of amphibolites, probably metamorphic tuffitic sediments. Among them are found layers of graphite schists and a few small bodies of ophicalcitic limestone. The carbon content of the schists is fairly small and never exceeds 36%. The highly metamorphie series is of Karelidie age and is intruded by several eruptive rocks. The oldest is a gabbro, one type of which consists only of amphibole, apatite, magnetite and pyrrhotite. Further the amphibolite-graphite series is intruded by a syenitic rock, often rich in pyrrhotite. Closely connected with the syenite is a granite, which differs from the syenite only in having a higher quartz content and a plagioclase richer in albite (Ab72An25 in the syenite, Ab83A12 in the granite). The youngest rock is a granite which is probably r...
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