Blar i NGU Open Archive på emneord "DAGBERGART"
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Alta og Gargia. Beskrivelse til de berggrunnsgeologiske kart 1834 I og 1934 IV - M 1 : 50 000.
(NGU; Skrifter (357; 32), Journal article, 1980)General descriptions of the different metasedimentary, metavolcanic and igneous rocks occurring within the area of the two map-sheets are presented. Three principal map-subdivisions are recognized: (a) a Precambrian (supposed ... -
Amphibolites and metagabbros from the Proterozoic Telemark Suite of Setesdalsheiene, South-central Norway.
(NGU (378), Journal article, 1983)Proterozoic supracrustal rocks of the Telemark Suite, including large thicknessof basic metavolcanites, occur as a large-scale isolated outlier within theolder gneiss-migmatitegranite complex on the mountain plateau ... -
Aspects of the geology of the southwestern Barents Sea from aeromagnetic data
(NGU Bulletin (427), Journal article, 1995) -
Befaring av lokaliteter for murestein ved Eikje og Langerud i Sigdal, Buskerud
(NGU-Rapport (2011.063), Report, 2011)Kartleggingen i forbindelse med Kongsberg-Modum-prosjektet har avdekket at det finnes et godt potensial for murestein i området sør Prestfoss. Bergartene som er aktuelle består av båndede lyse og mørke gneisser\/skifre som ... -
Compilation of geochronological data for Cenozoic volcanic activity on the African plate and for selected Northern African sedimentary basins
(NGU-Rapport (2012.014), Report, 2012)A compilation of published isotope geochronological data for Cenozoic volcanic \/ magmatic activity on the African plate and for part of the adjacent Antarctic plate was created within the African Plate project (TAP; ... -
Dating explosive volcanism perforating the Precambrian basement in southern Norway.
(NGU (380), Journal article, 1983)K-Ar and Rb-Sr dating have been performed on various hypabyssal diatreme-facies volcanic rocks perforating the Sveconorwegian zone of the Precambrian basement in southern Norway. The dated rocks were taken from the Fen ... -
Devonian lavas from Solund, West Norway - field relationships and geochemistry.
(NGU (382), Journal article, 1983)Devonian volcanic rocks in the Hersvik area, Solund, West Norway are represented by two lava flows occuring close to the base of the Devonian conglomerate. They are composed largely of highly flow-banded and brecciared ... -
Geochemistry and Rb-Sr dating of the Muruvik rhyolite tuff, Trondheimsfjord, Central Norway.
(NGU Bulletin (412), Journal article, 1988)A geochemical study of a low greenschist facies, felsic lapill-ash tuff fromnear the stratigraphic top of the Ordovician Lower Hovin Group at Muruvik,Trondheimsfjord, has shown that the pyroclastite is clearly calc-alkaline ... -
Geokjemiske undersøkelser av kaledonske vulkanitter og intrusiver i Midt- og Syd-Norge.
(NGU-Rapport (1228/A), Report, 1974)It has been possible with the aid of whole rock geochemistry to make a start at understanding the Caledonian volcanic belts in Norway, so that we can now progress beyond the stage of considering them under all-inclusive ... -
Geokjemiske undersøkelser av kaledonske vulkanitter og intrusiver i Midt- og Syd-Norge.
(NGU-Rapport (1228/B), Report, 1973) -
Hovedtrekk av berggrunnen på 1:50 000 kartblad 2117 IV Trysil.
(NGU-Rapport (89.126), Report, 1989)Berggrunnen innenfor kartblad Trysil er del av det sørnorske grunnfjell som preges av NV-SØ strykene bergartsbelter. 3 av disse opptrer også på svensk side av grensen. Disse beltene omfatter bergarter fra den midtprekambriske ... -
Kisdistriktet Varaldsøy-Ølve i Hardanger og bergverksdriftens historie.
(NGU (147), Journal article, 1955)When Steinar Foslie suddenly passed away in november 1951, he had finished the geological map here presented: \"Kisdistriktet Varaldsøy-Ølve i Hardanger\", based on field-work during 1942-49. Furthermore his M.S. contained ... -
Marginal basin type metavolcanites of the Hersjø Formation, eastern Trondheim District, Central Norwegian Caledonides.
(NGU Bulletin (412), Journal article, 1988)Forkortet.The more than 300 km long greenstone belt of the eastern Trondheim districtin the Caledonian Upper Allochthon displays considerable heterogeneity inlithology as well as metavolcanite geochemistry. A largely ... -
Meta-andesites in the Caledonides in the Suldal area, Ryfylke.
(NGU (288), Journal article, 1973)Meta-andesites interlayered with quartz-mica schists, phyllites and tuffites of supposed Cambro-Silurain age cover an area of about 120 km2 in the Suldal area, Ryfylke. Recrystallized meta-andesites are also found in the ... -
Preliminary investigations of some Ordovician volcanics from Stord, West Norway.
(NGU (327), Journal article, 1976)Later Ordovician volcanics on Stord, W. Norway, comprise alkaline rhyolite flows and ignimbrites, and ferro-basalt (icelandite) and basaltic andesite lavas. The latter are hy-normative, \"evolved\" rocks rich in residual ... -
Pukkundersøkelser Trondheim - Stjørdal.
(NGU-Rapport (88.022), Report, 1988)Etter oppdrag for franzefoss Bruk A\/S ble området mellom Trondheim og Stjørdal vurdert med hensyn til etablering av stasjonært pukkeverk. Basert på geologisk kartinformasjon og tilgjengelige rapporter ble alternative ... -
Rb-Sr isochron age of Caledonian acid volcanics at Stord, western Norway.
(NGU (300), Journal article, 1973)An eight-point Rb-Sr whole-rock isochron from Caledonianrhyolites at Stord in western Norway defines an age of 455 +- 5 m.y.and an initial 87Sr\/86Sr of 0.7071 +- 0.00018. This places thevolcanism in the Upper Ordivicium, ... -
Rennebu. Fjeldbygningen inden rektangelkartet Rennebus omraade
(NGU (56), Journal article, 1910)Forkortet: The Rennebu sheet embraces an area of about 590 square miles, situated about 28 miles south of Trondheim. Professor Tørnebohm (p.6) and Professor Kjerulf (p.6) have each given their view of the geological ... -
Rhombeporfyr-stratigrafi vest for Holmestrand.
(NGU (255), Journal article, 1968)Results from field work 1967 within an area of 4.5 x 6 km in the Vestfold lava plateau, Southern Oslo Region, show that the lower half of the lava series is much richer in flow than earlier realized, and consists of at ... -
Subduction-related volcanism in the Gula Nappe, southeastern Trondheim Nappe Complex, Central Norway
(NGU Bulletin (428), Journal article, 1995)Field and geochemical evidence from two meta-igneous complexes that occur in the Einunnfjellet-Savalen area, southeastern Trondheim Nappe Complex, indicates that both complexes formes in an arc-related setting. Metabasalts ...