Blar i NGU Open Archive på emneord "OMDANNING"
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Feltrapport over undersøgelser af intrusive bjergarter i Gjersvik- nappen, Grongfeltet
(NGU-Rapport (95.086), Report, 1995)Følgende rapport består af en renskreven feltdagbog og en oversigt over samtlige besøgte lokaliteter under feltarbejde udført for Grongprosjektet under Nord-Trøndelagsprogrammet i 1994. Prøvenumre og bjergartstype er angivet ... -
Geologi og petrografi på Nord-Karmøy.
(NGU (247), Journal article, 1967)The athor gives a description of rocks and tectonics on the northern and central part of the island of KarmThe athor gives a description of rocks and tectonics on the northern and central part of the island of Karmøy, ... -
Geological investigations in the Byglandsfjorden-Gyvatn area. (The Precambrian rocks of the Telemark area in South Central Norway no. IX).
(NGU (266), Journal article, 1970)The area consists of Precambrian migmatic gneisses in which a group of banded gneisses (migmatic gneisses, sensu stricto) and a group of granite gneisses have been distinguished. Two stages of folding are readily distinguished, ... -
Geologiske undersøkelser i sørlige Helgeland og nordlige Namdal.
(NGU (254), Journal article, 1967)Cambro-Silurian rocks with large intrusive masses cover most of the area. In the south-westernmost part there are also deeper lying rocks. This part is referred to as the basal gneiss region, while the rest of the area is ... -
Geology and metamorphic evolution of the Roan area, Vestranden, Western Gneiss Region, Central Norwegian Caledonides.
(NGU Bulletin (413), Journal article, 1988)Forkortet.In the gneiss area of northern Vestranden, kilometre-scale upright domes andbasins refold tight and isoclinal folds of banded amphibolite facies ortho-gneisses and supracrustal rocks. In the Roan area, a major ... -
Geology and structure of the area west of Fyresvatn, Telemark, southern Norway. The Precambrian rocks of the Telemark area in South Central Norway no. X.
(NGU (268), Journal article, 1970)Geological mapping has shown that the area west of Fyresvatn, Telemark, Southern Norway, is underlain by a sequence of gneisses, quartz schists, amphibolites, migmatites and epidote bearing quartzite, together with a ... -
Geology and structure of the Bjøllånes area, Rana, Nordland.
(NGU (343), Journal article, 1978)The field relationships of rock groups of three tectonic units from the area west of the Lønsdalen basal massif are outlined and the lithologies and mineral assemblages are described. Chemical analyses of marbles and ... -
Geology and structure of the Dombås-Lesja area, southern Trondheim region, south-central Norway.
(NGU (340), Journal article, 1978)Investigations in the southernmost part of the Trondheim region have established the presence of a new tectonic unit, the Andbergshøi Complex, interposed between the Trondheim Nappe and the Western Precambrian basement. ... -
Geology of the Altenes area, Alta-Kvænangen window, North Norway.
(NGU (351), Journal article, 1979)Precambrian supracrustal and intrusive rocks of the Raipas Group of supposed Karelian age are unconformably overlain by Vendian to ?Lower Cambrian sedimentary rocks, which have in turn been overridden by allochthonous rocks ... -
Geology of the Hølonda-Hulsjøen area, Trondheim region.
(NGU (266), Journal article, 1970)The geology of the area south of Trondheim is described. A new stratigraphical division of the Early Palaeozoic is proposed and its structure outlined. The entire Early Palaeozoic sedimentary and volcanic complex has been ... -
Geology of the southern part of the Kautokeino Greenstone Belt: Rb-Sr geochronology and geochemistry of associated gneisses and late intrusions.
(NGU Bulletin (403), Journal article, 1985)The southern part of the Kautokeino Greenstone Belt is divided into four volcanic formations separated by sedimentary units. The formation represent a development from Archaean komatiitic sequences to Middle Proterozoic ... -
Globulith, a new type of intrusive structure, exemplified by metabasic bodies in the Moss area, S.E. Norway.
(NGU (266), Journal article, 1970)Intrusion of basic magma into a regionally preheated gneiss complex has given rise to oddly shaped, globular to botryoidal, intrusions with associated contact anatexis and contact deformation whereby pseudoconcordant ... -
Inferred Mesozoic faulting in Finnmark: current status and offshore links
(NGU Bulletin (443), Journal article, 2005)An earlier compilation of the post-Caledonian fault system in the Caledonian domain of Finnmark is reassessed in thelight of more recent diverse data acquired from a combination of general geology onshore, well data and ... -
Komatiitic Chlorite-amphibole rocks and mafic metavolcanics from the Karasjok greenstone belt, Finnmark, northern Norway: a preliminary report.
(NGU (382), Journal article, 1983)A general account is presented of the field relationships, geochemistry and petrology of mafic and ultramafic metavolcanics within the Precambrian Karasjok greenstone belt. These metavolcanic rocks make up the major part ... -
Kongsfjell-områdets geologi, en petrografisk og strukturell undersøkelse i Helgeland, Nord-Norge.
(NGU (240), Journal article, 1967)The area investigated is situated in the Rødingsfjell nappe of the Norwegian Caledonides in Helgeland, North Norway. The study is divided into two main parts; the first structural and the second petrographic. The first ... -
Kort beskrivelse av bergartene.
(NGU Bulletin (155), Journal article, 1940)Petrographic inspection of the rocks reveals that all of them, both sedimentary and igneous, are metamorphic. The igneous rocks are gabbroic and trondhjemitic. The rocks of gabbroic origin (among them probably hypabyssal ... -
Late-Caledonian structures, differential retrogression and structural position of (ultra)high-pressure rocks in the Nordfjord-Stadlandet area, Western Gneiss Region
(NGU Bulletin (432), Journal article, 1997)Late-Caledonian, amphibolite-facies structures in the Nordfjord-Stadlandet area comprise an 8 km-wide zone of non-coaxial shear below the Nordfjord-Sogn Detachment (NSD). Below this zone, coaxial structures dominate. The ... -
Low-grade sediments on Precambrian gneiss in Vanna, Troms, Northern Norway
(NGU (359), Journal article, 1980)Forkortet: Presumed Precambrian, quartzo-feldspathic gneisses on Vanna, northern Norway, are overlain by two formations of arkosic sandstone and siltstone, the Tinn- vatn and Bukkheia formations. The gneiss\/sedimentary ... -
Meta-andesites in the Caledonides in the Suldal area, Ryfylke.
(NGU (288), Journal article, 1973)Meta-andesites interlayered with quartz-mica schists, phyllites and tuffites of supposed Cambro-Silurain age cover an area of about 120 km2 in the Suldal area, Ryfylke. Recrystallized meta-andesites are also found in the ... -
Origin of plagioclase-megacrysitic, orthopyroxene amphibolites within a Precambrian banded gneiss suite, Flekkefjord area, Vest-Agder, South Norway.
(NGU Bulletin (438), Journal article, 2001)Within a banded gneiss suite belonging to the high-grade Mesoproterozoic Flekkefjord complex in southern Norway, thin lenses of orthopyroxene amphibolites with medium- to large-size plagioclase megacrysts are located at ...