Blar i Artikler på emneord "KJEMISK ANALYSE"
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A note on the sulphur composition of chalcopyrite and pyrrhotite from the Moskogaissa mines, Birtavarre, Troms.
(NGU (203), Journal article, 1958)Under et besøk i Oslo sommeren 1956 var prof. A.M. Bateman (Yale Univ., USA) så vennlig a tilby å gjøre en bestemmelse av det stabile svovelisotop-forholdet i prøver fra Birtavarre. Håpet var at en slik bestemmelse kanskje ... -
A turbidimetric method for the determination of small amounts of sulphur in limestone and dolomite.
(NGU (270), Journal article, 1971)It has been observed thaat on applying the combustion method to the determination of small amounts of sulphur in limestone and dolomite the bulk of sulphur may remain in the sample when no oxygen stream is used, and that ... -
Albittrike bergarter i den karelske fjellkjede på Finnmarksvidda, Nord-Norge.
(NGU (203), Journal article, 1958)Greenschists and alternating, smaller beds of graphite schists, felsites, together with intrusive rokcs of diabase and granitoid character, all belonging to the Karelidic orogeny, show strong enrichment of albite. Chemical ... -
An evaluation of the determination of heavy metals, barium and phosphorus in sea-bed sediments
(NGU Bulletin (430), Journal article, 1996)An evaluation of the results obtained by following established procedures for collection and analysis of sea-bed sediments indicates that there is an acceptable reproducibility using nitric acid extraction and subsequent ... -
An occurrence of naturally lead-poisoned soil at Kastad near Gjøvik, Norway.
(NGU (266), Journal article, 1970)A 100 m2 area with exeptionally sparse vegetation in the forestat Kastad, 6.5 km north of Gjøvik, Norway, is described. The area bearsno signs of human activity. Determination of heavy metals in the soilsof the area shows ... -
An occurrence of unusual minerals at Bidjovagge, Northern Norway.
(NGU (266), Journal article, 1970)A complex titanium mineral containing abundant vanadium, and iron is described. The distribution of minor cerium, yttrium and scandium characterizes the two phases of which the mineral is comprised. As associate minerals ... -
Change in chemical composition of rock samples during preparation for analysis.
(NGU (300), Journal article, 1973)It has been shown that up to 3% of the volume of rock samples may escape as clust during their preparation (crushing and grinding) for chemical analysis. The mineral and chemical composition of the escaping rock dust may ... -
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 ... -
Chemistry and flow patterns in some groundwaters of southeastern Norway.
(NGU (380), Journal article, 1983)Groundwaters in Quaternary deposits and in bedrock of southeastern Norway down to 120 m below surface range in chemical composition from very dilute waters to brackish waters. The total contents of dissolved solids (Ca2+ ... -
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 ... -
Determination of major and trace elements in rocks employing optical emission spectroscopy and X-ray fluorescence.
(NGU (322), Journal article, 1975)An optical emission spectrometric method for major element determination and an X-ray fluorescence method for the determination of trace elements are described. The first method combines a tape machine with a direct reader ... -
Distribution of some trace elements in different benefication fractions from the Bleikvassli pyritic lead-zinc ore body, Nordland.
(NGU (300), Journal article, 1973)The distribution of some minor and trace elements at different stages of sulphide ore benefication in the Bleikvassli ore-dressing plant, has been studied using neutron activation analysis. Silver, gold, antimony and ... -
Edel granat fra Otterøy ved Molde.
(NGU (255), Journal article, 1968)A gemgarnet from Otterøy by Molde, Western Norway, is described. The garnet display an \"alexandrite-like effect\", i.e. the colour varies with the nature of the incident light. The transmission curves shows absorbtion ... -
Egersund. Fjeldbygningen inden rektangelkartet Egersunds omraade
(NGU (71), Journal article, 1914)Forkortet: The principal part of the rocky underground consists of labradorite-rocks, as may be seen on the map. These are not homogeneous all over the area neither with regard to the mineralogical composition, nor regarding ... -
En forekomst af kaolin og ildfast ler ved Dydland nær Flekkefjord
(NGU (32), Journal article, 1901)Forkortet: The lower part of the Sire river in Southwestern Norway has the appearance of a fjord 4 km long. Not far from it is Jøsingfjord only 2 km long. The peninsula between these two fjords is as a whole rather low and ... -
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 ... -
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 ... -
Forsøk på kromatografisk bestemmelse av (ca.Mg)-karbonater.
(NGU (213), Journal article, 1961)A brief description of a chromatographic method to determine the approximate Ca and Mg content of (Ca, Mg) carbonates is given. -
Geochemistry and Rb-Sr isochron age of trondhjemite dykes from the Gula Complex, near Snøan, Central Norway.
(NGU Bulletin (437), Journal article, 2000)Trondhjemite dykes trending c.ENE-WSW and transecting early metamorphic fabrics in rocks of the Gula Complex south-southwest of Støren, are themselves weakly metamorphosed and foliate. Geochemical data show that the dykes ... -
Geology and petrochemistry of the Smøla-Hitra Batholith, Central Norway.
(NGU Bulletin (416), Journal article, 1989)The plutonic rocks which compose the Smøla-Hitra Batholith (SHB) cover an exposed area of c.1000 km\u00B2 and intrude folded, Arenig-Llanvirn, low-grade meta-sedimentary and bimodal metavolcanic rocks and higher-grade ...