Blar i Artikler på tittel
Viser treff 401-420 av 1064
-
III. Kvartsstrøket mellem Bodø og Folden
(NGU (79), Journal article, 1917)It is a part of the coast-region in Northern Norway which is here described. It lies to the east of the Vestfjord between 67 degrees 20' and 67 degrees 40' N. The mountainous island of Landegode consists of granite. This ... -
Ildfaste oksyders fysikalske kemi. Oversigt over nyere præcisions- undersøkelser
(NGU (101), Journal article, 1922)In the present paper an attempt is made to summarize briefly the most reliable results of recent high temperature investigations of refractory oxides. As practically all the exact work in this field is done at the Geophysical ... -
Implication of isotope data on the metamorphism of the basic volcanites from the Sjangeli Window, northern Sweden
(NGU Bulletin (415), Journal article, 1989)The Lower Proterozoic supracrustal rocks of the Sjangeli area form an approximately N-S striking belt. The supracrustal belt consists of three metamorphosed volcanic and volcanosedimentary units, which are intercalated ... -
In-situ groundwater flow measurements as a tool for hardrock site characterisation within the SKB programme.
(NGU Bulletin (439), Journal article, 2002)In many cases, groundwater flow governs hydrochemical conditions and transport of contaminants. Groundwater flow rates are also a very essential input to risk assessment and a general understanding of the hydraulic system, ... -
Industrial mineral quality of limestone; the effect of contact metemorphism on textural properties, brightness and geochemistry
(NGU Bulletin (436), Journal article, 2000)When carbonate are altered by contact metamorphism the industrial mineral quality of the rock can be affected. Based on two contrasting limnestone units from Oslo Rift, Norway, a study has been made of the impact that ... -
Industrial minerals - towards a future growth
(NGU Bulletin (436), Journal article, 2000)The Norwegian mineral industry has shown pronounced growth in recent years, and production and export of industrial minerals (sensu stricto), aggregates and dimension stone have all increased, whilst the production and ... -
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 ... -
Ingeniørgeologiske undersøkelser for anlegg i fjell.
(NGU; Skrifter (352; 30), Journal article, 1979)The purpose of this paper is to provide geologists with an outline of the procedures and methods used by engineering geologists in the planning and construction of underground openings in rock. Examples of different types ... -
Innerelv member: late Precambrian marine shelf deposit, East Finnmark.
(NGU (288), Journal article, 1973)The Innerelv Member forms part of the succession between the late Precambrian tillites and the Lower Cambrian rocks in eastern Finnmark and it has a considerable lateral extent. It is about 300 m thick in the Tanafjord ... -
Interpretation of the lead isotopic composition from sulfide mineralizations in the Proterozoic Sjangeli area, northern Sweden.
(NGU Bulletin (415), Journal article, 1989)Cu-, Fe- and Zn-mineralizations occur in the Lower Proterozoic supracrustal rocks of the Sjangeli area, a tectonic basement window in the Caledonides of northern Sweden and Norway. The supracrustal belt consists of basic ... -
Interpretation of the Proterozoic Kautokeino Greenstone Belt, Finnmark, Norway from combined geophysical and geological data.
(NGU Bulletin (425), Journal article, 1993)Processed images of aeromagnetic, gravimetric and topographical data and geological maps combined with EM helicopter measurements, petrophysical data and digitised geological field observations have been used in a geological ... -
Intrusive rocks of the northern Iveland-Evje area, Aust-Agder.
(NGU (322), Journal article, 1975)In the northern Iveland-Evje area extensive magmatic activity occurred during the so-called Sveconorwegian igneous period. Two intrusive episodes can be distinguished through apparently they occurred close in time. The ... -
Investigations at the south-western border of the Sparagmite Basin (Gausdal Vestfjell and Fåberg Vestfjell), Southern Norway.
(NGU (266), Journal article, 1970)Descriptions are given of lithologies deposited in the original Sparagmite Basin. These rocks can be classified into a parauthochthonous older part and an allochthonous younger unit. Most of the formations of the Sparagmite ... -
Isavsmelting i og omkring midtre Gudbrandsdalen.
(NGU (223), Journal article, 1963)Observed glacial striae showing direction of ice-movement during the last active stage of the inland-ice are shown in fig. 1. Supposed major directions of ice movement are also shown in fig. 3. In the mountain parts are ... -
Isbevegelse i Lillehammer-området, Sør-Norge, under siste nedising.
(NGU (378), Journal article, 1983)The ice movement from the last glaciation in the northern part of the lake Mjøsa district are presented in an ice phase model. Four main ice phases are reconstructed mainly based on striation, but fluted surfaces, poorly ... -
Isfrie refugier i Norge under istiden.
(NGU; Skrifter (297; 7), Journal article, 1973)A review is given of the historical development of the theory of unglaciated refugia in Norway. The phyto-geographical and geological arguments for and against the theory are discussed, and our knowledge of the ice-borders ... -
Isotope geochronology in the high-grade metamorphic Precambrian of southwestern Norway: new data and reinterpretation.
(NGU (359), Journal article, 1980)A new series of isotopic age data is reported from the high-grade metamorphic Precambrian in S.W. Norway, mainly from the Sirdal-Ørsdal area. U-Pb investigations on suites of zircons from three augen gneisses and a pyroxene ... -
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 ... -
Isotopic age determinations in South Norway: II. The problem of errorchron ages from Telemark rhyolites.
(NGU Bulletin (418), Journal article, 1990)Two sets of Telemark Supracrustal acid metavolcanics of the Rjukan Group were investigated by the Rb-Sr whole-rock method. Eleven smples within a sampling range of about 10 m were taken at Kvamsstøl at a distance of about ... -
Isotopic composition, deposition ages and environemnts of Central Norwegian Caledonian marbles
(NGU Bulletin (427), Journal article, 1995)