Blar i Artikler på emneord "PREKAMBRIUM"
Viser treff 1-20 av 125
-
A preliminary account of the geology of the Signaldalen-Upper Skibotndalen area, Inner Troms, N. Norway.
(NGU (247), Journal article, 1967)A preliminary account of the petrography, stratigraphy and structure of an area at the Caledonian front in inner Troms, N. Norway, is given. Precambrian autochthonous gneisses are overlain by autochthonous and par-autochthonous ... -
Aeromagnetic basement complex mapping north of latitude 62°N, Norway.
(NGU (316), Journal article, 1975)The Geological Survey of Norway (NGU) has conducted aeromagnetic measurements over Norway since 1959, and to date approximately 90 % of the country has been covered with 435,000 line kilometres of such measurements. Since ... -
Age determination of Norwegian minerals up to March 1964.
(NGU (228), Journal article, 1964)A summary of absolute age determination of Norwegian minerals and rocks up to March 1964. Map of loclities, diagrams and analysis of the data. -
Age determinations from the Iveland-Evje area, Aust-Agder.
(NGU (300), Journal article, 1973)A Rb\/Sr isochron age determination on intrusive granite and monzonite from the Iveland-Evje area gave an age of 1038+- 43 m.y. Biotite from the granite dated by the K\/Ar method gave an age of 845+-60 m.y. These values ... -
Albittrike bergarter i den karelske fjellkjede på Finnmarksvidda, Nord-Norge.
(NGU (203), Journal article, 1958)Greenschists and alternating, smaller beds of graphite schists, felsites, together with intrusive rokcs of diabase and granitoid character, all belonging to the Karelidic orogeny, show strong enrichment of albite. Chemical ... -
Almenfattelig forklaring af kartet og af endel i det foregaaende anvendte geologiske udtryk
(NGU (4), Journal article, 1891) -
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 ... -
An integrated study of a Precambrian granite aquifer, Hvaler, Southeastern Norway
(NGU Bulletin (422), Journal article, 1992)The Geological Survey of Norway (NGU) is performing an integrated study of the groundwater resources of the Precambrian Iddefjord Granite of Hvaler municipality in southeastern Norway. Linear fracture zones are identifiable ... -
Aurdal. Beskrivelse til det geologiske gradteigskart.
(NGU (185), Journal article, 1954)The gneisses of the area can be divided into two distinct groups, plagioclase gneisses of a quartzdioritic composition and granodioritic gneisses. In the stripe of Archean rocks along the valley of the Begna there is a ... -
Bidrag til Finmarkens geologi
(NGU (84), Journal article, 1918)The present paper is a result of investigations carried out in the most northern district of Norway, during the summers 1914-17, the total amount of time spent in Finnmark being 23 weeks. The studies have been confined to ... -
Big boulders of tillite rock in Porsanger, Northern Norway.
(NGU (247), Journal article, 1967)In 1959 numerous erratic boulders of tillite rock were discovered at the head of Austerbotn, the eastern arm of the Porsangerfjord. Some of the boulders are very big, having volumes of up to 20m3. In 1965 another two ... -
Building stone of central and southern Ethiopia: deposits and resource potential
(NGU Bulletin (436), Journal article, 2000)The bedrock geology of Ethiopia exhibits a variety of rock types that can potentially be developed for building stone production. The ETHIONOR project has so far included investigation of such resources in the southern and ... -
Composition of metamorphic rocks and some aspects of evolution of the Lapland Granulite Belt on the Kola Peninsula, USSR
(NGU Bulletin (421), Journal article, 1991)Combined geological and petrochemical data suggest that the Lapland Granulite Belt can be divided into a lower sedimentary-volcanic unit and an upper, predominantly sedimentary sequence. Metamorphic rocks from the lower ... -
Contributions to the geology of Hardangervidda (West Norway) I. An explosion-breccia occurrence in Hjølmodalen.
(NGU (247), Journal article, 1967)An occurrence of breccia, which is thought to have been formed\rby a fluidization process, is described. The breccia is supposed to be\rgenetically related to similar breccias encountered in other parts of\rthe Precambrian ... -
Contributions to the geology of the Mjøsa districts and the classical sparagmite area in Southern Norway.
(NGU (220), Journal article, 1963)This publication gives a survey of the main results of geological investigations carried out in the Mjøsa districts in central Southeast Norway by the author during recent years. The transitional situation of the districts ... -
Correlation between the Late Precambrian Older Sandstone series of the Varangerfjord and Tanafjord areas. Preliminary report.
(NGU (266), Journal article, 1970)Sedimentary rocks belonging to the late Precambrian Older Sandstone Series (overlain unconformably by the Eocambrian-Lower Cambrian Vestertana Group) are described from the Vadsø-Komagelva area on the northern side of ... -
Correlation of Doggeelv and Lomvann formations, Komagfjord tectonic window, Finnmark: an alternative suggestion.
(NGU (234), Journal article, 1965)Føyn's beskrivelse (1964) av Bossekop-gruppen i Alta-området og jevnføringen med den eldre sandsteinserien i Tana, ledet mine tanker til en annen mulig jevnføring av Doggeelv og Lomvann formasjonene enn den som jeg har ... -
De prekambriske bergarter i Telemark, I. Gruber og skjerp innen gradeteigkart E36V Kviteseid.
(NGU (216), Journal article, 1963)Approximately 115 mines and claims have been examined in the years 1941-1961 during regional geological mapping of the Kviteseid quadrangle. The map area covers a part of the \"Thelemark-Sætersdal ore province\" established ... -
Den tillittførende formasjonsgruppe i Alta - en jevnføring med Øst-Finnmark og med indre Finnmark.
(NGU (228), Journal article, 1964)The Bosskop quartzite, the tillite layer and the succeedingbeds in Alta wer mapped by the present author in 1962. The mapping wasdone on aerial photographs at about 1:20 000. Fig. 1 give the result ona reduced scale. In ... -
Description of the geological maps "Tromsø" and "Målselv", Troms I. The Precambrian window of Mauken-Andsfjell.
(NGU (247), Journal article, 1967)This paper is the first part of a description of the bedrock on the two 1:100 000 map sheets, \"Målselv\" and \"Tromsø\". The geological map \"Målselv\", accompanies the paper. This part deals with the \"window\" of ...