Blar i Artikler på emneord "PALEOZOIKUM"
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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 ... -
Lithostratigraphy and facies analysis of the Ringerike group of the Oslo region.
(NGU (314), Journal article, 1974)The Ringerike group is a late Silurian red bed succession confined to the Oslo Graben of southern Norway. At Ringerike, the type area, it contains the Sundvollen Formation (500 m) below and the Stubdal Formation (750 m). ... -
Namsvatnet med en del av Frøyningsfjell.
(NGU (196), Journal article, 1956)The rocks of the area can be divided into three sharply separated groups. These are in ascending tectonic order: 1. The Børgefjell Massif in the north-eastern part of the area. 2. A complex of low-grade metamorphic sediments ... -
New fossil finds from the Cambro-Silurian meta-sediments on Hardangervidda.
(NGU (304), Journal article, 1974)The occurrence of Actinoceroid cephalopods (Ormoceras(?) sp.), brachipods (Orthis ss.), and trilobites (Ptychopyge sp.) in a crystalline limestone overlying bluish quartizite on Hardangervidda indicates that Orthoceras ... -
Noen stratigrafiske aldersspørsmål i Grong-feltet og den sydøstlige del av Helgeland.
(NGU (223), Journal article, 1963)Some years ago the present writer described the geology and stratigraphy of the district along the Swedish border between 64 50' and 60 45' N (Strand 1953, 1955, Foslie og Strand 1956). In these districts and in adjacent ... -
Om Grongkulminasjonen og Grongfeltets skyvedekker.
(NGU (195), Journal article, 1956)On the Grong culmination and the thrust nappes of the Grong area: This paper presents of the major tectonic features of a central part of the Caledonides of Norway, based upon the very detailed and exact geological manuscript ... -
On the tectonic relations of the Devonian complex of the Røragen area, East Central Norway.
(NGU (223), Journal article, 1963)In 1961, by chance, the author observed strata within the Devonian complex at Røragen. As the complex was earlier believed to be faulted only, the athor revisited the area in 1962. In the present paper the field relations ... -
Otta-dekket og Valdres-gruppen i strøkene langs Bøverdal og Leirdalen.
(NGU (228), Journal article, 1964)In his 1951 paper (Strand, 1951) the writer described the Otta nappe (lower Jotun nappe). The nappe was mapped in the Vågå map area, extending west to the meridian 2 dgrs. west of Oslo. It is here a thin and discontinous ... -
Reconnaisance of the Tømmerås Anticline.
(NGU (227), Journal article, 1964)A granitic basement dome, overlain with unconformity by Palaeozoic and perhaps Eocambrian rocks, is described. The flat-lying \"leptites\" and intercalated sediments, which comprise the basement, were little affected by ... -
Regional similarities in the distribution of well yield from crystalline rocks in Fennoscandia
(NGU Bulletin (450), Journal article, 2010)Well yields from Precambrian and Palaeozoic bedrock in Norway, Sweden and Finland exhibit very similar and approximately log-normal distributions: all three data sets exhibit a median yield of 600-700 L hr-1, despite the ... -
Relasjonen mellom senkaledonsk tektonikk og sedimentasjon ved Hornelens og Håsteinens devon.
(NGU (223), Journal article, 1963)The Old Red in western Norway form very thick \"molasse\" deposits. The Håsteinen district is made up of coarse breccia with an estimated thickness of more than 1000 m and the Hornelen district has mainly sandstone with ... -
Røros. Beskrivelse til kvartærgeologisk landgeneralkart
(NGU (198), Journal article, 1956)The present map, dealing with the quarternary deposits of Røros, is partly based on existing maps of a larger scale, certain of which have been published. Areas not geologically mapped beforehand were surveyed in the susal ... -
Some geophysical profiles in Østfold.
(NGU (266), Journal article, 1970)Based on detailed observations three profiles are examined, the profiles running some 20 km west-east from Jeløya, Østfold fylke. The magnetic values are taken from maps published by NGU. Geological samples have been ... -
Stratigraphical position of the Gudå conglomerate zone.
(NGU (227), Journal article, 1964)The Gudå conglomerate zone has been considered to be of Upper Ordovician to Lower Silurian age. The main argument for this conclusion has been that the conglomerates of this zone have been the same pebble composition as ... -
Studies in the Trondheim region, Central Norwegian Caledonides
(NGU (227), Journal article, 1964) -
Subsidence and tectonics in Late Precambrian and Palaeozoic sedimentary basins of southern Norway.
(NGU (380), Journal article, 1983)The assumption that sedimentary basins approach isotopic equilibrium provides a good foundation for modelling basin subsidence based on variables such as cooling rates (thermal contraction), crustal thinning, eustatic ... -
Suldalsfjeldene
(NGU (36), Journal article, 1903)Forkortet: The high mountain region round the Suldal lake to the NE of Stavanger in Southeastern Norway forms a continuation of the region described by Bjørlykke, Rekstad and Reusch in the \"Aarbog\" (Yearbook) of 1902. ... -
The geology of the Fjeldheim-Gåsbakken area, Sør-Trøndelag.
(NGU (223), Journal article, 1963)The geology of an area south of Trondheim is described and a geological map is presented. This area has not been studied in detail before. Rocks of the Støren Group and the Lower Hovin Group are exposed. The latter group ... -
The nature of the basement contact.
(NGU (227), Journal article, 1964)The gneisses below the Cambrian schist or Eocambrian flagstones in the central Norwegian Caledonides have been considered of Precambrian age, but the fact that the contact is always concordant has been explained as due to ...