FOCUS NGU FOCUS NO.1 FEB 2023
PL E A
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W W W E V ISI T .NGU . NO FO R A D
Photo: Jan Egil Wanvik (NGU). Trenching at the Møkland graphite prospect.
D I N FO R I T I O N A L MATI ON
THE GRAPHITE POTENTIAL OF NORWAY; TARGETS GALORE NGU FOCUS 01.02.2023 / WRITTEN BY HAVARD.GAUTNEB@NGU.NO
GRAPHITE IN NORWAY (Fig. 1)
Lofoten-Vesterålen Senja
Holandsfjord
Graphite provinces Geological map of Norway LEGEND
Igneous rocks of the Oslo province (permian-carboniferous) Sedimentary rocks of the Oslo province (cambrian-silurian) Sedimentary rocks (devonian) Thrust nappes of precambrian age Caledonian nappes
Norway has been a graphite producer for almost 100 years. Historically, graphite has been produced from three mines of which one, Skaland Graphite, is the only current producer. The Norwegian graphite deposits are all of fake graphite type and are all situated in Proterozoic rocks of upper amphibolite or granulite facies metamorphic grade. Most of the deposits occur in three main provinces. Most of these areas are covered with new high-resolution Electromagnetic, Magnetic and Radiometric helicopter geophysical surveys. Apart from the mine in production very few of the Norwegian graphite deposits have been drilled or have any approved reserve calculation. Skaland graphite mine produces from the worlds richest fake graphite deposit, with an average grade of 31% graphitic carbon. GRAPHITE PROVINCES There are four known graphite provinces in Norway: the island of Senja, the Lofoten-Vesterålen islands, Holandsfjorden area, and the Bamble area in southern Norway (Fig.1).
Metamorphic and igneous rocks Sand stone and schists Basement rocks within the Caledonides Basement rocks outside the Caledonides
100 km
Bamble