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Petrology and metallogeny associated with the Tryvann Granite Complex, Oslo Region.
(NGU Bulletin (423), Journal article, 1992)The Tryvann Granite Complex (TGC) comprises four separate intrusive bodies within the Oslo Graben. It constitutes a differentiated suite of young (240- 245 Ma) alkaline quartz syenites and granites derived from a strongly ... -
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 of the Grimstad granite II. Petrography, geochemistry, crystallography of alkali feldspars and genesis.
(NGU (265), Journal article, 1970)The Precambrian Grimstad granite, South Norway, has been studied by petrographical, chemical and x-ray crystallographical analysis. It has a semi-circular outline and is partly rimmed by an agmatite. Eight different rock ... -
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 ... -
Planktonic, acid-resistant microfossils from Upper Proterozoic strata of the Barents Sea Region of Varanger Peninsula, East Finnmark, Northern Norway.
(NGU (382), Journal article, 1983)Planktonic, acid-resistent microfossils (acritarchs) occur in the Kongsfjord, Båsnæring and Båtsfjord Formations of the Barents Sea Group and in the Styret Formation of the Løkvikfjell Group. Two new taxa are described and ... -
Platina i sulfidisk nikkelmalm.
(NGU (137), Journal article, 1932)Im Auftrag der Geologischen Landesanstalt wurde eine Reihe von Erzvorkommen in den Ofoten- und Grong-gebieten, die neulich geologisch kartiert sind, auf ihr Edelmatallgehalt analysiert. Die Analysen wurden im Laboratorium ... -
Pleistocene and recent sediments of the Norwegian Continental Shelf (62°N-71°N), and the Norwegian Channel area.
(NGU (316), Journal article, 1975)The surface sediments covering the area under consideration can be divided into 4 groups: 1. Till, mainly composed of material derived from the adjacent mainland. 2. Till, mainly containing material derived from Mesozoic-Tertiary ... -
Pollen-meteoritten. Et nytt funn av meteoritt i Norge.
(NGU (223), Journal article, 1963)A description of a carbonaceous chondrite of type II, Wiik (1956) fallen 6th april 1942 in Northern Norway (66\u00B020.9`N lat.-14\u00B00,9`E long. Gr.) is given. Weight: 253.6 gram, density 2.574, largest dimensions: 7,9 ... -
Polyphase Caledonian metamorphism in the Precambrian basement of Rogaland/Vest-Agder, SW Norway.
(NGU (380), Journal article, 1983)In the Sveconorwegian basement of Rogaland\/Vest-Agder, SW Norway, two incipient Caledonian metamorphic overprints are assumed on the basis of petrological textures and regional extension of the metamorphic mineral ... -
Porphyritic syenite at Lake Mykle, the Oslo Rift - a possible derivative of larvikite.
(NGU Bulletin (442), Journal article, 2004)New Rb-Sr and Sm-Nd isotope data on porphyritic syenite from lake Mykle in the southern part of the Oslo Rift confirm a close compositional and genetic relationship and genetic relationship between this rock and the ... -
Possible Mesozoic mantle plume activity beneath the continental margin of Norway.
(NGU (322), Journal article, 1975)Based on recent geological and geophysical information from the Norwegian\/Greenland Sea and North Sea areas, and on earlier geomorphological information interpreted in terms of regional drainage pattern evolution, it is ... -
Possible Mesozoic sediments in fault and breccation zones in Frøyfjorden, Mid Norway
(NGU Bulletin (443), Journal article, 2005)The 5.3 km long Frøya Tunnel beneath Frøyfjorden, Central Norway, links the islands of Hitra and Frøya and passes through a major zone of faulting and breccation which parallels the Møre-Trøndelag Fault Complex. Faults and ... -
Post-Sveconorwegian exhumation and cooling history of the Evje area, southern Setesdal, Central South Norway
(NGU Bulletin (431), Journal article, 1996)Fission track (FT) dating of apatite and sphene from monzonitic dyke rocks in a Middle to Late proterozoic intrusion from the Setesdal region, southern Norway, indicates cooling from intrusion temperatures of the surroundings ... -
Praktisk-geologiske undersøgelser af Nordlands amt. I. Salten og Ranen med særlig hensyn til de viktigste jernmalm- og svovelkis-kobberkis- forekomster samt marmorlag
(NGU (3), Journal article, 1890)Forkortet: Die vorliegende Abhandlung erscheint als erster Theil einer geologischen Bescreibung von Nordland Amt, mit besonderer R\u00FCcksicht auf die wichtigsten Marmorlager und Erzlagerst\u00E4tten (von Eisenerz, ... -
Praktisk-geologiske undersøkelser af Nordlands amt II. Dunderlands- dalens jernmalmfelt (i Ranen, Nordlands amt, lidt søndenfor polar- kredsen)
(NGU-Rapport (15), Journal article, 1894)Forkortet: Diese Abhandlung erscheint als zweiter Theil einer geologischen Beschreibung von Nordlands Amt; in der hier vorliegenden Fortsetzung sind die Eisenerz-Vorkomnisse, namenlich im Dunderlandsthale in Mo i Rana, ... -
Precambrian and Caledonian tectonometamorphic evolution of Northeastern Seiland, Finnmark, North Norway.
(NGU (373), Journal article, 1982)The metamorphic rocks of northeastern Seiland are predominantly Precambrian gneisses and schists. The Fagervik infracrustal complex, composed of tonalitic gneisses, constitutes a basement to the Late Precambrian-Cambrian ... -
Precambrian stratigraphy in the Masi area, southwestern Finnmark, Norway.
(NGU (380), Journal article, 1983)The rocks in the Masi area consists of a comformable stratigraphic sequence containing three formations. The lowest is the Gål'denvarri formation, mainly containing metamorphic basic volcanics. Above this is the Masi ... -
Preliminary investigations of some Ordovician volcanics from Stord, West Norway.
(NGU (327), Journal article, 1976)Later Ordovician volcanics on Stord, W. Norway, comprise alkaline rhyolite flows and ignimbrites, and ferro-basalt (icelandite) and basaltic andesite lavas. The latter are hy-normative, \"evolved\" rocks rich in residual ... -
Preliminary U-Pb geochronology in the West Troms Basement Complex, North Norway: Archean and Palaeoproterozoic events and younger overprints.
(NGU Bulletin (441), Journal article, 2003)This paper reports new U-Pb ages for zircon and titanite in four magmatic units of the West Troms Basement Complex. A granite, present as a megalens within the NNW-trending Senja Shear Belt at the southwestern tip of ... -
Present uplift rates and groundwater potential in Norwegian hard rocks
(NGU Bulletin (426), Journal article, 1994)The postglacial isostatic uplift of Fennoscandia is here regarded as the most important factor in keeping fractures open for groundwater flow in Norwegian hard rock aquifer. The present rate of uplift is assumed to represent ...