Browsing Artikler by Title
Now showing items 952-971 of 1064
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The precambrian metamorphic rocks around the lake Vegår (Aust-Agder, southern Norway).
(NGU (257), Journal article, 1968)An area about 2000 km between the Skagerak coast (Tvedestrand - Risør) and the Southern part of the Telemark province (Tjønefoss - Neslandvatn) has been investigated and is considered to be a genetically homogenous migmatitic ... -
The Raudfjellet ophiolite fragment, Central Norwegian Caledonides: principal lithological and structural features.
(NGU Bulletin (445), Journal article, 2005)The Raudfjellet complex, Nord-Trøndelag, displays several of the features of a classical ophiolite pseudostratigraphy. At its base is a spectacular ultramafic mylonite. Elements represented include: (1) Ultramafic rocks, ... -
The relation between the basal gneiss and the overlying meta-sediments in the Surnadal district, (Caledonides of Southern Norway).
(NGU (184), Journal article, 1953)The boundary between the basal gneiss and the overlying micaschists and micaceous gneisses is marked by a thin zone of \"basal quartzite\", but the quartzite is generally not at the exact boundary between the two divisions. ... -
The relationship of sedimentation to tectonics in the Solund Devonian District of southwestern Norway.
(NGU (259), Journal article, 1968)The Solund district of southwestern Norway contains a maximum preserved stratigraphic thickness of 5,200 meters of coarse conglomerate with less amounts of intercalated sandstone. The deposits are thought to be Middle ... -
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 ... -
The Rjukan Proterozoic rift basin, its basement and cover, volcanic and sedimentary infill, and associated intrusions
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The role of groundwater in the acidification of the hydrosphere - examples from small catchments inthe Bohemian Massif
(NGU Bulletin (439), Journal article, 2002)The aim of the presented study was to assess the impact of the groundwater on the degree of acidification of surface waters in small catchments. Quantitative hydrogeological analysis based on results of the SACRAMENTO ... -
The sequential development of magmatic and ore-forming processes in the Fundsjø Group, Meråker district, Central Norway
(NGU Bulletin (427), Journal article, 1995) -
The significance of analytical procedure in geochemical and environmental studies
(NGU Bulletin (427), Journal article, 1995) -
The Silurian succession of the Oslo Region.
(NGU (384), Journal article, 1983)he marine Silurian succession of the Oslo Region displays agreat variety of mixed clastic and carbonate lithofacies. Maximumthicknesses (< 650 m) and most complete successions are seen in thecentral parts of the region in ... -
The stratigraphy of the Dyvikvågen Group, Stord : a revision.
(NGU (359), Journal article, 1980)A revision of the stratigraphy of the Upper Ordovician to Lower Silurian Dyvikvågen Group is presented. This group of sediments rests with primary stratigraphic unconfirmity upon a substrate of basaltic greenstones cut by ... -
The structural and metamorphic history of the Langstrand-Finfjord area, Sørøy, Northern Norway.
(NGU (253), Journal article, 1968)The Langstrand-Finnfjord area of N.E. Sørøy is characterised by a metasedimentary sequence of quartzites, pelitic and semi-pelitic schists and limestones, the stratigraphical order of which can be demonstrated by reference ... -
The structural geology of the Saura region, Nordland.
(NGU (264), Journal article, 1970)The structural development is described of the Saura region, occupying part of the internal zone of the Caledonide orogenic belt in Nordland. Two major rock divisions hve been distinguished; a number of gneissic groups, ... -
The structure and regional setting of the Skei Group, Leka, north-central Norway
(NGU Bulletin (426), Journal article, 1994)The unconformity between the metasedimentary Skei Group and subjacent ophiolite on Leka has important implications for the tectonostratigraphy of the region. As a distinctive marker horizon, it permits correlations within ... -
The structure in the area of mineralization on Ulveryggen, Repparfjord, Finnmark.
(NGU (203), Journal article, 1958)I forbindelse med NGU's generelle geologiske kartlegging av det nordligste Raipas-\"vinduet\", har forfatteren laget et strukturelt kart over det mineraliserte området på Ulveryggen ved Repparfjord, 70 gr. 26N og 13 gr.32Ø ... -
The structure of Mellene and Heggberg, Valdres.
(NGU (243C), Journal article, 1967)Structural study of the Valdres Sparagmite and Mellsenn Formation in their type region between the Jotunheim crystalline rocks and the frontal quartzite nappes of the central southern Norwegian Caledonides has revealed ... -
The structure of the Magerøy Nappe, Finnmark, North Norway.
(NGU (363), Journal article, 1981)The Magerøy Nappe was emplaced during the Scandinavian phase of the Caledonian orogeny, of Middle\/Upper Silurian age. Two main episodes of deformation (D1 and D2) with attendant Barrovian-type regional metamorphism are ... -
The style of deformation in the Devonian rocks on Hitra and Smøla, Central Norway.
(NGU Bulletin (414), Journal article, 1989)The Old Red Sandstone sequence in the Outer Trøndelag Region comprise conti-nental conglomerates, sandstones and mudstones of latest Silurian to MiddleDevonian age. During a Late Devonian tectonic phase (Solundian Phase) ... -
The sub-Caledonian unconformity on Hjelmsøy - new evidence of primary basement/cover relations in the Finnmarkian nappe sequence.
(NGU (351), Journal article, 1979)A new and important occurence of a primary stratigraphic unconfomity beneath tha Caledonian cover in allochthon of the Finnmarkian segment of the North Norwegian Caledonides is described. This unconformity, on the island ... -
The sulphide deposit of Nordre Gjetryggen Gruve, Folldal, Norway.
(NGU (228), Journal article, 1964)Nordre Gjetryggen Gruve in the Folldal district, southern Norway, is at approximately 62 9'N. latitude and 10 E. longitude. The mining of copper from pyritic ores began in the area in 1748, while the recovery of zinc and ...