Blar i Artikler på emneord "ALUNSKIFER"
Viser treff 1-3 av 3
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250 A : Uran og thorium i Norge : 250 B : The lead and zinc bearing veins at Tråk in Southern Norway : 250 C : Kongsberg Sølvverk
(NGU (250 A), Journal article, 1967) -
Uran i kambrisk alunskifer i Oslofeltet og tilgrensende områder.
(NGU (203), Journal article, 1958)Investigations of the black Alum shales in the Oslo Region initiated the systematical prospecting for uranium in Norway. The Alum shales is a black shale formation in the Cambrian system in Southern Norway. The outcrops ... -
Uran og thorium i Norge.
(NGU (250 A), Journal article, 1967)In this short publication is mentioned what we today know on uranium and thorium in Norway. U occurs accessory in gneisses and granites, dispersed in Cambrian shales, associated with quartz and calcite in brecciated zones, ...