Blar i NGU Open Archive på forfatter "Johnsen, J."
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Meddelelser om Svenningdal sølvgruber
Johnsen, J. (NGU (1), Journal article, 1891)Forkortet: This mines lies in Northern Norway at 64 \u00B0 50' n.l. on the western side of the Vefsn-valley. The environing rock consists of hornblende-shist, limestone and phyllite, occuring in alternating strata and ...