Browsing NGU Open Archive by Subject "ISOTOPSTRATIGRAFI"
Now showing items 1-3 of 3
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A new Rb-Sr isotopic parameter for metasomatism, At, and its application in study of pluri-fenitized gneisses around the Fen ring complex.
(NGU Bulletin (445), Journal article, 2005)Emplacement of the Fen peralkaline-carbonatitic ring complex 583 Ma ago in the c. 1105 Ma old Telemark gneisses caused mineralogical, chemical and Sr-isotopic changes, i.e., fenitization, in the country rocks. Fenitization ... -
Isotope geochronology in the high-grade metamorphic Precambrian of southwestern Norway: new data and reinterpretation.
(NGU (359), Journal article, 1980)A new series of isotopic age data is reported from the high-grade metamorphic Precambrian in S.W. Norway, mainly from the Sirdal-Ørsdal area. U-Pb investigations on suites of zircons from three augen gneisses and a pyroxene ... -
Marmorforekomster i Midt-Norge: Geologi, isotopgeokjemi og industri- mineralpotensiale
(NGU-Rapport (94.042), Report, 1994)Marmorforekomster opptrer på 3 tektonostratigrafiske nivåer i Midt-Norge: Seve- og K\u00F6li-ekvivalente dekker i Øvre allokton samt Helgeland dekkekompleks i Øverste allokton. Amfibolittfacies Sevedekke-bergarter opptrer ...