Blar i Artikler på emneord "SJELDNE JORDARTER"

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    • Disparate geochemical patterns from Snåsavatn greenstone, Nord-Trøndelag, Central Norway. 

      Roberts, David (NGU (373), Journal article, 1982)
      Greenstone volcanites of Middle Ordovician age from the Snåsavatn area of the Central Norwegian Caledonides can be divided into two distinctive groups on the basis of their geochemical patterns. The bulk of the lavas sampled ...

    • Geochemistry of mafic dykes in the Corrovarre Nappe, Troms, North Norway 

      Roberts, David (NGU Bulletin (419), Journal article, 1990)
      Tholeiitic metadolerite dyke rocks in the Corrovarre Nappe of the Kalak Nappe Complex in North Troms show chemical traits which indicate T-MORB affinities, with fairly flat, chondrite-normalised REE patterns in a (La\/Nb)N ...

    • Metallogeny of Finnmark, North Norway 

      Bjørlykke, Arne; Sandstad, Jan Sverre; Olerud, Svein (NGU Bulletin (403), Journal article, 1985)
      Metalliferous ore deposits and mineralisations in the county of Finnmark occur in rocks ascribed to three specific periods of geological time: 1) Archaean 2) Early Proterozoic 3) Caledonian. The only Archaean ore deposits ...