Browsing Artikler by Subject "MINERALOGI"
Now showing items 1-20 of 57
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A clay sample from Tangen brickwork.
(NGU (200), Journal article, 1957)En leirprøve fra Tangen teglverk nær Fredrikstad, samlet av E. Kvernstrøm og innsendt til Norges geologiske undersøkelse av H. A. Sand, ble underkastet røntgenundersøkelse (Per Chr. Sæbø), kornstørresesfordeling og ... -
A petrographical and structural study of the rocks around the Peridotite at Engenbræ, Holandsfjord, Northern Norway. Bjergartene omkring peridotiten ved Engenbræen, Holandsfjord.
(NGU (191), Journal article, 1955)This study is a continuation of the work carried out by S. Skjeseth and the writer in 1952. The present paper only deals with an extremely well-exposed surface 1 km square in front of the retreating Engenbræ glacier. This ... -
A preliminary account of the geochemistry and ore mineral parageneses of some Caledonian basic igneous rocks from Sørøy, northern Norway.
(NGU (234), Journal article, 1965)The intrusion of the Storelv and Breivikbotn gabbros into metasediments on the island of Sørøy took place during the late stages of the first phase of Caledonian folding (F1). Both gabbros were then affected by almandine ... -
An occurrence of zeolites at Kragerø, southern Norway.
(NGU (205), Journal article, 1959)Zeolitene ble funnet på to slepper i en kvartsrik gneis ved Østland, ca. 1,5 km NV for Kragerø. Sleppe nr. 1 inneholder natrolit, desmin, heulandit og laumontit, alle zeoliter. Sleppe nr. 2 inneholder kalkspat, epidot, ... -
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 ... -
Die Gesteine der Halbinsel Strand. Beiträge zur Metamorphose und zum Aufbau der kambro-silurischen Gesteine des Stavanger-Gebietes II
(NGU (267), Journal article, 1970)This second report of investigations in the Stavanger district gives a description of the geology, and the structural deformations in a cambro-Silurian rock sequence of metamorphosed argillaceous sediments, sandstone, ... -
Die Gesteine der Inseln des zentralen Boknfjords. Beiträge zur Metamorphose und zum Aufbau der kambro-silurischen Gesteine des Stavanger-Gebietes III
(NGU (267), Journal article, 1970)A metamorphic series of Cambro-Silurian sediments have been investigated in the Boknfjord area (SW-Norway) by mapping and petrographical studies. The lower division was found to be a weakly metamorphosed sequence of manifold ... -
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 petrografisk-mineralogisk undersøkelse i området syd for Majavann, spesielt granaters sammensetning under regional metamorfose.
(NGU (234), Journal article, 1965)The investigated area is situated in the Norwegian Caledonian orogenic belt, south of Majavann (Nordland county). The main rock types are micagneisses and garnet-mica-schists, cristalline limestones, granodioritic-gneisses, ... -
Et funn av pseudotachylitt i S. Trøndelag, og en teori for dannelsen.
(NGU (211), Journal article, 1960)(forkortet) A new locality of pseudotachylite, and a theory of formation: A new locality of pseudotachylite, in southern Trøndelag, southern Norway is described. The geology of the area in which it occurs has been described ... -
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 I. Feltspatmineralenes egenskaper, forekomst og praktiske utnyttelse med særlig henblikk på den norske feltspatindustri.
(NGU (128A), Journal article, 1926)The present publication is a description, in non-technical language, of the properties, geological mode of occurrences, exploitation, and uses of feldspar with special reference to the Norwegian feldspar industry. Systematic ... -
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) -
Feltspat V. De sjeldne mineraler på de norske granittiske pegmatittganger.
(NGU (154), Journal article, 1939)The present publication gives a short description of the most common rare elements of the Norwegian pegmatites and the Norwegian rare-element-bearing minerals. The rare-element-bearing minerals in the Norwegian granite ... -
Fortsetter Horrsjøbergets sedimentserie inn i Norge?
(NGU (215), Journal article, 1962)An erratic quartizitic boulder, rich in kyanite, was found at Storsjøen, N. Odal, Southern Norway. The boulder also contains lazulite, rutile, pyrite and svanbergite. Lazulite and svanbergite have not been reported from ... -
Gabbroic and quartz dioritic intrusions in gneisses on southern Askøy, West Norwegian Caldonides.
(NGU (270), Journal article, 1971)Light- and dark-coloured biotite gneisses and in part amphibole gneisses, of supracrustal origin have been intruded by a Precambrian basic pluton. Later a quartz diorite was intruded into the basic rocks. By assimilation ...