Browsing Artikler by Subject "BERGGRUNNSGEOLOGI"
Now showing items 21-40 of 95
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Geochemical evidence in support of sedimentary precursors to Proterozoic sillimanite-bearing rocks, Vest-Agder, South Norway
(NGU Bulletin (446), Journal article, 2006)Sillimanite-bearing alumina-rich schists and gneisses from three different areas within the Agder region in southern Norway are interpreted as having sedimentary precursors, transformed during deep-seated Sveconorwegian ... -
Geochemistry and palaeogeographical setting of greenstone units on Frosta peninsula, Nord-Trøndelag, Central Norwegian Caledonides
(NGU Bulletin (450), Journal article, 2010)Volcanic and high-level intrusive rocks of the Støren Nappe exposed on the west coast of Frosta peninsula occur in two, distinct, magmatic units; the bimodal Fånes complex and the metabasaltic Granheim greenstone. North ... -
Geochemistry and petrogenesis of trondhjemites and granodiorite from Gauldalen, Central Norwegian Caledonides
(NGU Bulletin (437), Journal article, 2000)In the Gauldalen district of Central Norway, three varieties of trondhjemite cutting rocks of the Gula Complex have been distinguished on the basis of nuances of colour and field relationships. The high Al2O3, Rb and Sr, ... -
Geologi og vannboring. Kambro-silurbergartenes hydrogeologi i Mjøs- traktene. Meddelelse fra Vannboringsarkivet nr. 3.
(NGU (195), Journal article, 1956)Norwegian rocks are with a few exeptions impervious. The water is concentrated in fractures, joints, fissures, solution openings etc. and hydrogeological study requires kowledge of the tectonics of the different formations ... -
Geological history and explanation, North Sea. (Abstract)
(NGU (316), Journal article, 1975) -
Geological note: Age of the Hamningberg dolerite dyke, Varanger Peninsula, Finnmark: Devonian rather than Vendian - a revised enterpretation
(NGU Bulletin (451), Journal article, 2011)In an earlier geochronology paper in this same journal, discordant U-Pb ages on zircons from a dolerite dyke near Hamningberg, Varanger Peninsula, Finnmark, were interpreted to favour a Vendian (Ediacaran) age of intrusion ... -
Geological note: Petrophysical and thermal properties of pre-Devonian basement rocks on the Norwegian continental margin
(NGU Bulletin (448), Journal article, 2008)This Geological note presents petrophysical and thermal properties of pre-Devonian basement rocks along the Norwegian continental margin. The dataset is the first to present ground-truth data from basement rocks along the ... -
Geological studies of the Caledonian pyritic zinc-lead orebody at Bleikvassli, Nordland, Norway.
(NGU (222), Journal article, 1963)Avhandlingen er delt opp i tre deler. Den første del (part 1) gir en detaljert beskrivelse av Bleikvassli malmens mineralogi og petrografi, og malmens geologiske historie forsøkes tolket ved hjelp av dens mineralstrukturer ... -
Geology of the Båtsfjordfjellet drillcore, Varanger Peninsula, Finnmark, northern Norway
(NGU Bulletin (452), Journal article, 2012)Logging of >800 metres of drillcore from a borehole on Båtsfjordfjellet, Varanger Peninsula, revealed a succession of very low-grade, metasedimentary rocks which are assigned to specific Neoproterozoic formations recognisable ... -
Granite pegmatite quartz from Evje-Iveland: trace element chemistry and implications for the formation of high-purity quartz
(NGU Bulletin (436), Journal article, 2000)Previous studies imply that granite pegmatites and hydrothermal quartz veins are the most promising igneous repositories of high-purity quartz. This is because quartz from higher temperature geological settings (granites, ... -
Granite studies I. A gravity investigation of two Precambrian granites in South Norway.
(NGU (214B), Journal article, 1963)The Bouguer gravity anomaly map, based on 778 stations, covers the Precambrian rocks along the southeast coast of Norway from the Oslo region to Kristiansand. The principal features of the map are the low gravity gradient ... -
Gruber og skjerp i kisdraget Øvre Guldal-Tydal.
(NGU (129), Journal article, 1927)The occurences described in this paper form a connection between th mining districts around Røros to the south and those around Meråker to the north. The occurences lie in mountain regions partly above the forest line. The ... -
Grunnvann i Vestfold. Meddelelse fra Vannboringsarkivet nr. 11.
(NGU (213), Journal article, 1961)Drilling for water has become very common in the county of Vestfold since World War II. The water is mostly restricted to fractures, joints, fissures and solution openings in the rocks. The main rock-types found in Vestfold ... -
Grunnvann øst for Oslo-feltet. Meddelelse fra Vannboringsarkivet nr. 10.
(NGU (213), Journal article, 1961)A rapid survey of the general geology south, east and northeast of Oslo is given with a view to explain the differences in water supply in various Precambrian rocks. The gneisses usually give much more water than the more ... -
Hans Reusch. Nekrolog og bibliografi
(NGU (100), Journal article, 1923)The present publication is dedicated to the memory of Dr. Hans H. Reusch,\r late director of the Norwegian Geological Survey. It also contains a\r bibliography of books, papers, and articles published by Dr. Reusch.\r Dr. ... -
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 ... -
Isotopic evidence on the age of the Trysil porphyries and granites in eastern Hedmark, Norway.
(NGU (266), Journal article, 1970)Rocks from the (sub-Jotnian) acidic plutonic and volcanic basement complexes in the Trysil area, eastern Hedmark, yield a Rb-Sr isochron age of 1541+-69 million years. This agrees within the limits of error with the isochrom ... -
IV. Ramsøy titanjernmalmfelt i Solør og dets differentiations- processer
(NGU (68), Journal article, 1914)Forkortet: The present paper deals with a deposit of titaniferrous iron ore in the province of Solør, in southeastern Norway, and its formation through differentition processes. The treatise may be naturally divided into ... -
IV. Litt om Jutulhugget
(NGU (79), Journal article, 1917)The Jutulhug (\"The big Troll's Notch\") is a cleft or canyon situated in the central part of Southern Norway under 62 degrees N. As our somewhat schematic drawing on p. 4 shows, it is situated in a wide saddle between the ... -
Jernmalm og jernverk. Særlig om elektrisk jernmalm-smelting.
(NGU (85), Journal article, 1918)