Blar i Artikler på emneord "BERGGRUNNSGEOLOGI"
Viser treff 1-20 av 95
-
250 A : Uran og thorium i Norge : 250 B : The lead and zinc bearing veins at Tråk in Southern Norway : 250 C : Kongsberg Sølvverk
(NGU (250 A), Journal article, 1967) -
A copper-zinc mineralization in Trolldalen, Lofoten, Northern Norway.
(NGU (228), Journal article, 1964)From the previous it is most likely that even separated the various mineralizations in Trolldalen are related and contemporary. Allthough different minerals appear in the different veins, pyrrhotite, chalcopyrite and ... -
A U-Pb zircon, Archaean age for granitoid rocks in the Kunes Nappe, Laksefjord Nappe Complex, Finnmark, North Norway
(NGU Bulletin (449), Journal article, 2009)Nappes in the middle parts of the Caledonian tectonostratigraphy in Finnmark, northern Norway, contain slices of granitoid basement that hitherto have not been reliably dated. Zircons extracted from two, high-K, calc-alkaline ... -
Aeromagnetic and gravimetric interpretation of regional structural features in the Caledonides of West Finnmark and North Troms, Northern Norway.
(NGU Bulletin (419), Journal article, 1990)Forkortet.Interpretation of aeromagnetic and gravity data from Finnmark and North Tromshas resulted in a new map of depth to Precambrian basement. The integratedinterpretation of the data shows that the Seiland Igneous ... -
Blyglansforekomst på Krækkjeheia, Hardangervidda.
(NGU (200), Journal article, 1957)A lead deposit near Krækkjeheia, Hardangervidda. This short paper presents the main results of an investigation of a galenaspalerite showing on the mountain plateau of Hardangervidda, 160 kms. west of Oslo. The sulfides ... -
Chemical (U-Th-Pb) dating of monazite: Analytical protocol for a LEO 1450VP scanning electron microscope and examples from Rogaland and Finnmark, Norway
(NGU Bulletin (446), Journal article, 2006)Monazite is a common accessory mineral and is a valuable mineral chronometer on account of its relatively high U and Th contents, negligible common Pb, and a high closure temperature. Because all the Pb present in monazite ... -
Chemical and petrographic characterization of ilmenite and magnetite in oxide-rich cumulates of the Sokndale Region, Rogaland, Norway
(NGU Bulletin (436), Journal article, 2000)Igneous ilmenite and magnetite in some oxide-rich cumulates of the Sokndal region show chemical features and microtextures that reflect the progress of magmatic evolution and subsolidus re-equilibration. These features ... -
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 manganholdige siderittmalm i Rubben, Troms. Undersøkelser sommeren 1959.
(NGU (211), Journal article, 1960)An occurence of mangan-bearing siderite ore i Rubben, Troms, Northern Norway. An occurence of manganese-bearing siderite ore i Rubben, Torms, Northern Norway, was investigated during some days in the summer of 1959, and ... -
Dolomittforekomster ved Kragerø.
(NGU (157), Journal article, 1942) -
Dunderlandsdalen. Fjeldbygningen inden gradavdelingskartet Dunderlandsdalens omraade
(NGU (86), Journal article, 1919)This paper is a geological description of the Dunderland district in Nordland, a part of Northern Norway. The map accompanying the paper is a part of the official series of maps on the scale of 1:100 000, which is being ... -
Early Ordovician ages of zircons from felsic rocks and a conglomerate clast, Frosta peninsula, Central Norwegian Caledonides
(NGU Bulletin (450), Journal article, 2010)Zircons extracted from a felsic sheet in the bimodal, magmatic, Fånes complex of the Støren Nappe on Frosta peninsula yielded a U-Pb age of 488 \u00B1 5 Ma, interpreted as the age of crystallisation. A large clast of ... -
Eisen-TitanlagerstÌtten bei Raudsand, Westnorwegen.
(NGU (234), Journal article, 1965)A number of magnetite-ilmenite deposits near Raudsand in western Norway are described. The orebodies lie in lenses and plates of amphibolite. These amphibolites are conformable within the surrounding late precambrian or ... -
En dag ved Åreskutan
(NGU (1), Journal article, 1891) -
En forekomst av ren kvarts i Krødsherred
(NGU (103), Journal article, 1922)The paper describes an occurrence of comparatively pure quartz near lake Krøderen in Krødsherad, southern Norway. The quantity of quartz available by quarrying from the surface now exposed to a depth of about 5 m is estimated ... -
Feldspat, kvarts og glimmer, deres forekomst og anvendelse i industrien
(NGU (1), Journal article, 1891)Forkortet: The above minerals are extracted from very coarse grained granitic veins - pegmatite - in the Archaean of the Southern Norway. The author describes several quarries between the cities of Arendal and Tvedestrand. ... -
Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder.
(NGU (128b), Journal article, 1931)Summary s. 151. Feldspar deposits in Southern Norway. (Feltspat II by Olaf Andersen and Feltspat III by Tom F.W. Barth) A few years ago one of the writers published a general outline of the properties, mode of occurrence, ... -
Feltspat III. Forekomster i Iveland og Vegusdal i Aust-Agder og i flere herreder i Vest-Agder.
(NGU (128B), Journal article, 1931) -
Feltspatundersøkelsene på Drag og ved Innhavet, syd for Tysfjorden, Nordland fylke. (Foredrag holdt i Norsk Geologisk Forening, Oslo 6/10 1960).
(NGU (215), Journal article, 1962) -
Geochemical changes accompanying mylonitisation of granite at the base of the Helgeland Nappe Complex, Nord-Trøndelag, central Norway
(NGU Bulletin (446), Journal article, 2006)A progressive conversion of megacrystic granite into mylonites at the base of the Helgeland Nappe Complex in the Caledonides of central Norway is reflected in microstructural, textural and modal changes. These mylonites ...