Blar i Artikler på emneord "PETROLOGI"
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Sedimentary petrology of the Sparagmites of the Rena district, S. Norway.
(NGU (238), Journal article, 1966)Sediments of the Sparagmite group (Eocambrian\/latest Precambrian) have been mapped at a scale of 1:50 000 in the Rena district, 180 km north of Oslo. This district is located along the southern margin of the Sparagmite ... -
Structure and petrology of the Bergen-Jotun kindred rocks from the Gjendebu region, Jotunheimen, Central Southern Norway.
(NGU (373), Journal article, 1982)The Gjendebu region is located within the Jotun Nappe, highest tectonic unit of the southern Norwegian Caledonides. The structure of the area is dominated by the NE-rending Tyin-Gjende Fault, a major zone of repeated ... -
Studies on the Latest Precambrian and Eocambrian Rocks in Norway
(NGU (238), Journal article, 1966) -
The early major structure and petrology of rocks in the Bamble Series, Søndeled-Sandnesfjord, Aust-Agder.
(NGU (327), Journal article, 1976)The geology and major fold structures of part of the Bamble Series are described from an area near Risør, Aust-Agder (some 15 km SW of the Levang paragneiss dome). Major structures are shown to have formed prior to the ... -
The Eidsfjord anorthosite, Vesterålen, Norway: field observations and geochemical data.
(NGU Bulletin (434), Journal article, 1998)New fieldwork in the Eidsfjord anorthosite on Langøy, Vesterålen, Nordland, has revealed that the anorthosite in the centre of the investigated complex is associated with large amounts of monzonitic and more mafic rocks ... -
The geology and petrology of the Rognsund intrusion, West Finnmark, Northern Norway.
(NGU (371), Journal article, 1982)The Rognsund intrusion is an early-Caledonian gabbroic body containing an 800 m thick sequence of metamorphosed cumulates. Well-developed rythmic layering is interpreted in terms of both in situ crystallization and deposition ... -
The granites of the Mykle region in the southern part of the Oslo igneous province, Norway
(NGU Bulletin (441), Journal article, 2003)The granites exposed around lake Mykle constitute two discrete massifs. The western granite massif, the subject of the present paper, is an intrusive complex, with larvikite as country rocks making up the topographic highs ... -
The Iddefjord granite: geology and age
(NGU Bulletin (417), Journal article, 1990)The Iddefjord granite forms part of the Swedish Bohus batholith and ranges in composition from diorite to granite. The granite consists of 13 individual plutons, and the mechanism of intrusion is related to block subsidence ... -
The low-grade rocks of the Skålvær area, S. Helgeland, and their relationship to high-grade rocks of the Helgeland Nappe Complex.
(NGU (322), Journal article, 1975)The geological setting of low-grade rocks of the Helgeland Nappe Complex are discussed and it is concluded that the low-grade rocks are part of the nappe complex. Correlation with similar low-grade sequences in (1) the ... -
The nature and tectonic setting of mélange deposits in Soknedal, near Støren, Central Norwegian Caledonides.
(NGU (378), Journal article, 1983)A sedimentary m\u00E9lange occurs as a mega-lens just east of the disjunctive boundary between the Støren Nappe and the Gula Nappe within the Trondheim Nappe Complex in the Soknedal-Støren area. Packets, blocks and shreds ... -
The Ordovician Grøndalsfjell Intrusive Complex: Central Scandinavian Caledonides: field relations, petrography and emplacement
(NGU Bulletin (435), Journal article, 1999)The Grøndalsfjell Intrusive Complex (GIC) is part of a major plutonic province located in the Gjersvik Nappe of the Upper Allochthon in the Caledonides of Central Norway. Field relationships and petrography suggest that ... -
The origin of macrorhytmic units in the Lower Zone of the Lille Kufjord Intrusion, northern Norway.
(NGU Bulletin (420), Journal article, 1990)The Lille Kufjord intrusion is one of the youngest mafic plutons in the Seiland Magmatic Province which forms part of the Middle Allochthon of the North Norwegian Caledonides. It was emplaced at a mid-crustal level into ... -
The Oslo paleorift - A review and guide to excursions. Excursion 3. Central part of the Oslofjord.
(NGU (337), Journal article, 1978) -
The Oslo paleorift - A review and guide to excursions. Petrology of the plutonic rocks.
(NGU (337), Journal article, 1978) -
The Porsanger Sandstone Formation and subjacent rocks in the Lakselv District, Finnmark, Northern Norway.
(NGU (255), Journal article, 1968)The Porsanger Sandstone Formation forms an imbricated thrust mass lying between the Precambrian Basement Complex to the south-east and an allochthonous nappe of \"Caledonian\" metamorphic rocks to the north-west. The ... -
Volcanostratigraphy and eruptive products of the Jonsvatn greenstone formation, central Norwegian Caledonides.
(NGU (387), Journal article, 1983)The predominantly volcanic, Ordovician, Jonsvatn greenstone formation comprises appr. 500 m of tholeiitic basalts and associated volcanic products, with interbedded sediments totalling some 100-200 m in thickness. In the ... -
Zinc and lead deposits in the Håfjell syncline, Ofoten, northern Norway.
(NGU (244), Journal article, 1967)This paper deals with the stratigraphic position, the tectonic development and the major mineralogy of the ores and imediate wall rocks of the Håfjell syncline, on the southern side of the Ofoten fjord, Northern Norway. ...