Blar i NGU Open Archive på forfatter "Mitchell, John G."

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    • Geology and K/Ar chronology of the Målvika scheelite skarns, Central Norwegian Caledonides. 

      James, D. Wyn; Nordgulen, Øystein; Ineson, Richard; Mitchell, John G. (NGU Bulletin (424), Journal article, 1993)
      Skarns present on the northern shore of Tosenfjord overprint the S2 fabric of the adjacent gneiss (which formed during peak regional metamorphism). Together with petrographic evidence of the late crystallization of sheelite, ...

    • Kentallenite (olovine-monzonite) in Bindal, Central Norwegian Caldonides. 

      Nordgulen, Øystein; Mitchell, John G. (NGU Bulletin (413), Journal article, 1988)
      A rock-type identified as kentallenite is reported from the southwestern partof the Helgeland Nappe Complex, Central Norway. The kentallenite is ahypabyssal rock and belongs to a suite of appinitic mafic dykes and smallstocks ...