Browsing NGU Open Archive by Subject "KALEDONSKE FJELLKJEDE"
Now showing items 41-60 of 121
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Geology of the Fosen Peninsula and Trondheimsfjord Region: a synopsis and excursion guide.
(NGU-Rapport (98.119), Report, 1998)In the first part of the report, a synopsis is presented of the general geology and tectonostratigraphy of this part of Central Norway, with a slightly more detailed account given of the geology of Fosen Peninsula. The ... -
Geology of the Minor Bergen Arc, West Norway.
(NGU Bulletin (416), Journal article, 1989)Detailed mapping of the Minor Bergen Arc has revealed the presence of a variety of highly deformed rocks of different origin and age. Three rock units have been separated and named. The Nordåsvatn Complex comprises deformed ... -
Geology of three dioritic plutons in Velfjord, Nordland.
(NGU Bulletin (423), Journal article, 1992)Dioritic plutons in the Velfjord area of Nordland intrude calc-silicates and migmatitic pelites of the Helgeland Nappe Complex (HNC). The three largest plutons were emplaced in a zone of NNW-SSE regional strike rather than ... -
High-temperature ultramafic complexes in the North Norwegian Caledonides: I - Regional setting and field relationships.
(NGU Bulletin (405), Journal article, 1986)Forkortet.Four major (25-100 km\u00B2) ultramafic complexes were developed in the Sørøy Nappeduring the second phase of Finnmarkian deformation in the North NorwegianCaledonides. They were emplaced into layered mafic ... -
Hovedtrekk av berggrunnen i deler av kartblad Leksvik 1622-3 (foreløpig berggrunnskart 1:50.000)
(NGU-Rapport (93.062), Report, 1993)Kartleggingen omfatter 29 feltdager (1989 og 90) i området mellom Trondheims- fjorden i sørøst og Skaudalen i nordvest. De tektonostratigrafiske enhetene er ovenfra og nedover: A. Et øverste, sammensatt dekke (Størendekket) ... -
Hovedtrekk av geologien i Nord-Trøndelag og Fosenhalvøya.
(NGU-Rapport (85.274), Report, 1985)Rapporten er først og fremst en syntese av berggrunnsgeologien i Nord-Trøndelag og nabo-områdene i Sør-Trøndelag på Fosenhalvøya. Korte beskrivelser er gitt over de geologiske hovedinndelingene, med en noe mer omfattende ... -
Isotope geochronology of the Eidfjord Granite, Hardangervidda, West Norway.
(NGU (327), Journal article, 1976)The Eidfjord Granite has a 7-point whole-rock Rb-Sr isochron age of 931 +- 35 Ma with initual 87Sr\/86Sr = 0.7058 +- 0.0028 (50.0 X (10)9 year 87Rb half life; errors at 95 per cent confidence level). Two separated biotites ... -
Kentallenite (olovine-monzonite) in Bindal, Central Norwegian Caldonides.
(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 ... -
Late Precambrian stratigraphy and structure of the north-eastern margin of the Fennoscandian shield (East-Finnmark - Timan Region).
(NGU (316), Journal article, 1975)Later Precambrian (Riphean and Vendian) rocks occur along the north-easternb margin of the Fennoscandian Shield and the Russian Platform in Three zones: 1) the Varanger-Kildin, 2) the Timan-Kanin and 3) the Southern Barents ... -
Magnetotelluric measurements in the Rondane region, southern Norway during two field campaigns (2017- 2018)
(NGU-Rapport (2019.026), Report, 2020)New magnetotelluric (MT) data were acquired in the southern Scandinavian mountains to study the crustal structure of the Late Caledonian Gudbrandsdalen Anticline including the Atnsjø tectonic window and the adjacent Middle ... -
Marginal basin type metavolcanites of the Hersjø Formation, eastern Trondheim District, Central Norwegian Caledonides.
(NGU Bulletin (412), Journal article, 1988)Forkortet.The more than 300 km long greenstone belt of the eastern Trondheim districtin the Caledonian Upper Allochthon displays considerable heterogeneity inlithology as well as metavolcanite geochemistry. A largely ... -
Mosjøen. Beskrivelse til det berggrunnssgeologiske gradteigskart I 17 1 : 100 000.
(NGU; Skrifter (307; 12), Journal article, 1974)Description are given of the various lithologies occurring within the map area. These mainly comprise Cambro - Silurian supracrustals and intrusive, as well as granitic basement rocks of supposed Precambrian age. The ... -
Multiple folding in the Sørfinnset area of Northern Norway.
(NGU (262), Journal article, 1970)120 km\u00B2 of the Norwegian Caledonides have been mapped on aerial photographs on a scale of approximately 1:15 000. Detailed correlation between the folded schist successions has enabled the effects of the earliest ... -
Nappe and thrust structures in the Sparagmite region, southern Norway.
(NGU (380), Journal article, 1983)The Osen-Røa Nappe Complex is thrust upon a crystalline basement and a thin autochthonous sediment cover. The nappe complex is characterized by a sole thrust cutting up-section toward the SSE, by flats, ramps and contraction ... -
On "The nature of the basement contact". Critical comments on Chr. Oftedahl's paper in Norges Geologiske Undersøkelse, nr. 227, 1964.
(NGU (234), Journal article, 1965) -
Petrochemistry and palaegeographic setting of the Ordovician volcanic rocks of Smøla, Sentral Norway.
(NGU (359), Journal article, 1980)The Arenig-Llanvirn volcanic rocks of Smøla are distinctly calc-alkaline in their chemistry. The palaographic setting focuses attention on certain problems regarding lithostratigraphic correlation within the now fragmented ... -
Petrography and structural history of the Caledonian rocks north of Haukelisæter, Hardangervidda.
(NGU (314), Journal article, 1974)The main features of the geology of the Caledonian nappe front north of Haukelisæter are described. The Precambrian basement in this area is overlain by an autochthonous\/parautochthonous sequence in the east and by ... -
Petrology of differential gabbro sheets in the Altenes tectonic window, North Norway.
(NGU Bulletin (414), Journal article, 1989)The petrography of two differentiated gabbro sheets in the low-grademetamorphic Karelian supracrustal sequence of the Altenes Tectonic Window isdescribed. The intrusion have generally undergone extensive deuteric alter-ation. ... -
Petrology, geochemistry and genesis of the type area trondhjemite in the Trondheim Region, Central Norwegian Caledonides.
(NGU (351), Journal article, 1979)Trondhjemite from the Follstad district of the Trondheim region is present within allochthonous Lower Paleozoic eugenosynclinal and partly miogeosynclinal rocks of the Caledonide orogen. Four periods of trondhjemite intrusive ...