Blar i NGU-publikasjoner på emneord "GANGBERGART"
Viser treff 1-16 av 16
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A probable Permian hydrothermal alteration age for a quartz syenite dyke from Stabben, Nordmøre.
(NGU Bulletin (432), Journal article, 1997)A Rb-Sr whole-rock isochron from a quartz-syenite dyke at Stabben, Nordmøre, has provided an age of 263 +- 6Ma. This could be taken to indicate a crystallisation age for the dyke, i.e. Early Permian. The age, however, does ... -
A rift-related mafic dyke swarm in the Corrovarre Nappe of the Caledonian Middle Allochthon, Troms, North Norway, and its tectonometamorphic evolution
(NGU Bulletin (419), Journal article, 1990)Forkortet. The Corrovarre Nappe is the highest tectonic unit of the Kalak Nappe Complex, in the Caledonian Allochthon, in the Nordreisa area of Troms, North Norway. The nappe consists of meta-arkoses, metapellites and ... -
Bergartgange ved Sand i Ryfylke
(NGU (1), Journal article, 1891)Forkortet: Sand is a village on the south-western coast of Norway to the NE of the city of Stavanger. The dykes are dioritic and occur in gneiss. The principal ones are marked on the sketch-map pag. 35 and illustrated in ... -
Feltforhold af gabbroiske intrusjoner og gangbergarter i Grøndalsfjellområdet, Grongfeltet
(NGU-Rapport (96.001), Report, 1996)Denne rapport er baseret på feltarbejde udført i sommeren 1995 indenfor \"Samtolkning af geodata i Grongfeltet\" under NGU og Nord-Trøndelag Fylkeskommune. Rapporten beskæftiger sig med feltforhold, petrografi af gabbroiske ... -
Feltrapport over undersøgelser af intrusive bjergarter i Gjersvik- nappen, Grongfeltet
(NGU-Rapport (95.086), Report, 1995)Følgende rapport består af en renskreven feltdagbog og en oversigt over samtlige besøgte lokaliteter under feltarbejde udført for Grongprosjektet under Nord-Trøndelagsprogrammet i 1994. Prøvenumre og bjergartstype er angivet ... -
Geochemistry and Rb-Sr dating of trondhjemite dykes from the Gula Group, near Snøan, Sør-Trøndelag.
(NGU-Rapport (96.163), Report, 1996)Trondhjemite dykes forming part of a swarm cutting the Gula Group metasedimentsand tectonically overlying Støren Group metabasalts in the district south ofStøren, Sør-Trøndelag, have been investigated in road-cuts in the ... -
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 ... -
Geochemistry of mafic dykes in the Corrovarre Nappe, Troms, North Norway
(NGU Bulletin (419), Journal article, 1990)Tholeiitic metadolerite dyke rocks in the Corrovarre Nappe of the Kalak Nappe Complex in North Troms show chemical traits which indicate T-MORB affinities, with fairly flat, chondrite-normalised REE patterns in a (La\/Nb)N ... -
Mafic dykes in the Lkesdal Nappe at Sørli, Central Norwegain Caledonides: geochemistry and palaeotetonic implications
(NGU Bulletin (435), Journal article, 1999)Mafic dykes intruding feldspathic metasandstones of the Leksdal (Sarv) Nappe in the Sørli district of Nord-Trøndelag, Central Norway, vary from weakly foliated, porphyritic types to more common, strongly schistose, sparsely ... -
On the variolitic structure.
(NGU (223), Journal article, 1963)The article presents detailed descriptions of the variolitic structure in selected minor intrusions and lavas. The evidence indicates that the varioles formed by liquid segregation rather than by spherulitic crystallization. -
Pegmatitten ved Liverud og Gulliksrud ca. 5 km øst for Kongsberg, Øvre Eiker.
(NGU (211), Journal article, 1960)The pegmatites at Liverud and Gulliksrud ca. 5 kms E of Kongsberg, Øvre Eiker: A brief description of the pegmatites and their structural relationship to the adjacent banded gneisses is given. Some technical and economic ... -
Petrology and isotope geology of the Hunnedalen Monzonoritic Dyke Swarm, SW Norway: a possible late expression of Egersund Anorthosite magmatism
(NGU Bulletin (434), Journal article, 1998)The widest and northernmost dyke of the post-tectonic Late Proterozoic Hunnedalen Monzonoritic Dyke Swarm has been studied petrographically, chemically (major and trace element) and isotopically (Rb-Sr; Sm-Nd; K-Ar) toghether ... -
Rb-Sr and Sm-Nd relationship in dyke and sill intrusions in the Oslo Rift and related areas.
(NGU Bulletin (425), Journal article, 1993)Eighteen dykes and three sills from the Oslo Rift and related areas in SW Sweden have been investigated by the Rb-Sr and Sm-Nd methods. Rb-Sr isochron ages in the range 287 to 248 Ma were obtained for twelve of the dykes. ... -
Scientific research exchange programme on the Upper Proterozoic geology of the Varanger Peninsula, Rybachi and Sredni Peninsula, Kildin Island, Bolshoi Aynov and Malyi Aynov Islands. Report from the joint fieldwork on the Norwegian and Russian sides
(NGU-Rapport (92.321), Report, 1991)The 1991 fieldwork in this project was a continuation of investigations commenced in 1990. The Norwegian and Russian workers agreed that: (1) The Trollfjorden-Komagelva Fault Zone continues from the Varanger Peninsula to ... -
The Fongen - Hyllingen layered intrusion, Trondheim region, Norway: an excursion guide
(NGU-Rapport (2010.015), Others, 2010)The Fongen-Hyllingen complex, situated 60 km southeast of Trondheim, Norway, comprises the 160 km2 Fongen-Hyllingen layered mafic intrusion (FH1) and the slightly younger, minor (3 km2) mafic to ultramafic Treknattan ... -
The Resfjell ophiolite fragment, southwest Trondheim region, central Norwegian Caledonides
(NGU Bulletin (409), Journal article, 1987)The Resfjell Complex of Meldal, southwestern Trondheim region, provides an almost ideal crosssection through the uppermost part of an ophiolite. The stratigraphically lowest rocks exposed are metagabbro wich are followed ...