Blar i Artikler på emneord "OMDANNING"
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A petrographical and structural study of the rocks around the Peridotite at Engenbræ, Holandsfjord, Northern Norway. Bjergartene omkring peridotiten ved Engenbræen, Holandsfjord.
(NGU (191), Journal article, 1955)This study is a continuation of the work carried out by S. Skjeseth and the writer in 1952. The present paper only deals with an extremely well-exposed surface 1 km square in front of the retreating Engenbræ glacier. This ... -
A rift-related mafic dyke swarm in the Corrovarre Nappe of the Caledonian Middle Allochthon, Troms, North Norway, and its tectonometamorphic evolution
(NGU Bulletin (419), Journal article, 1990)Forkortet. The Corrovarre Nappe is the highest tectonic unit of the Kalak Nappe Complex, in the Caledonian Allochthon, in the Nordreisa area of Troms, North Norway. The nappe consists of meta-arkoses, metapellites and ... -
A section across the Norwegian Caledonides; Bodø to Sulitjelma.
(NGU (260), Journal article, 1969)Between coastal regions near Bodø and the relatively well-known Sulitjelma area on the Norwegian-Swedish border a number of metasedimentary sstructural units have been distinguished lying above an apparently region-wide ... -
Age determination from the Trondheim Region Caledonides, Norway: a preliminary report.
(NGU (288), Journal article, 1973)Twenty-four potassium-argon age determinations have been made on metamorphic minerals and whole-rocks (phyllites) from the Caledonides of the Trondheim region, Norway. Nineteen of the apparent ages fall between 438 and 402 ... -
Alta og Gargia. Beskrivelse til de berggrunnsgeologiske kart 1834 I og 1934 IV - M 1 : 50 000.
(NGU; Skrifter (357; 32), Journal article, 1980)General descriptions of the different metasedimentary, metavolcanic and igneous rocks occurring within the area of the two map-sheets are presented. Three principal map-subdivisions are recognized: (a) a Precambrian (supposed ... -
Amphibolites and metagabbros from the Proterozoic Telemark Suite of Setesdalsheiene, South-central Norway.
(NGU (378), Journal article, 1983)Proterozoic supracrustal rocks of the Telemark Suite, including large thicknessof basic metavolcanites, occur as a large-scale isolated outlier within theolder gneiss-migmatitegranite complex on the mountain plateau ... -
An overview of titanium deposits in Norway
(NGU Bulletin (436), Journal article, 2000)Titanium deposits in Norway are of three major types: igneous, metasomatic and metamorphic. The igneous deposits are compared of ilmenite, magnetite and apatite in various proportions and occur in geological provinces of ... -
Bedrock geology of the Altevatn-Måskanvarri area, Indre Troms, northern Scandinavian Caledonides.
(NGU Bulletin (432), Journal article, 1997)The Altevatn-Måskanvarri area of inner Troms provides a critical link between the more intensively studied areas in northernmost-Sweden and Finnmark to the north. It is composed of a stack of far-travelled Caledonian thrusts ... -
Caledonian and Baikalian tectonic structures on Varanger Peninsula, Finnmark, Norway, and coastal areas of Kola Peninsula, NW Russia
(NGU Bulletin (431), Journal article, 1996)Based on data compiled from biostratigraphy, radiometric dating and palaeomag- netic studies, contractional deformation and low-grade metamorphism in the Neo- proterozoic to earliest Palaeozoic successions of coastal areas ... -
Depositional environment and apparent age of the Fauske carbonate conglomerate, North Norwegian Caledonides.
(NGU Bulletin (436), Journal article, 2000)The Fauske conglomerate represents a rather rare case of a monomict carbonate conglomerate in the Late Neoproterozoic to Silurian, lithostratigraphic successions of the Norwegian Caledonides. Lithological varieties of this ... -
Devonian lavas from Solund, West Norway - field relationships and geochemistry.
(NGU (382), Journal article, 1983)Devonian volcanic rocks in the Hersvik area, Solund, West Norway are represented by two lava flows occuring close to the base of the Devonian conglomerate. They are composed largely of highly flow-banded and brecciared ... -
Die Gesteine der Inseln des zentralen Boknfjords. Beiträge zur Metamorphose und zum Aufbau der kambro-silurischen Gesteine des Stavanger-Gebietes III
(NGU (267), Journal article, 1970)A metamorphic series of Cambro-Silurian sediments have been investigated in the Boknfjord area (SW-Norway) by mapping and petrographical studies. The lower division was found to be a weakly metamorphosed sequence of manifold ... -
En geologisk undersøkelse på den sørøstre del av kartbladet Salangen.
(NGU (234), Journal article, 1965)Petrographic and structural investigations were made in a Cambro-Ordovician area of the Caledonides of Northern Norway, situated in Salangen, Troms. The rocks, mainly mica schists rich in biotite and\/or muscovite, are ... -
En petrografisk-mineralogisk undersøkelse i området syd for Majavann, spesielt granaters sammensetning under regional metamorfose.
(NGU (234), Journal article, 1965)The investigated area is situated in the Norwegian Caledonian orogenic belt, south of Majavann (Nordland county). The main rock types are micagneisses and garnet-mica-schists, cristalline limestones, granodioritic-gneisses, ... -
Fabrics and structure of metamorphic flagstones and implications for industrial quality
(NGU Bulletin (436), Journal article, 2000)Metamorphic flagstones are characterised by a regularly spaced mica foliation separated by quartzo-feldspathic domains, along which the rocks can be cleaved into commercial slabs. In the thrust nappes of the Scandinavian ... -
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 ...