Blar i NGU Open Archive på emneord "PETROLOGI"
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Petrological studies of the Neiden granite complex.
(NGU (237), Journal article, 1966)The Neiden granite complex fits well into Raguin's group of \"anatectic granites with suites of migmatites\". In this area, supracrustals of the Bjørnevatn group have, together with their gneissgranitic basement, been ... -
Petrology and geochemistry of high-grade metamorphic and igneous rocks on Langøy, northern Norway.
(NGU (207), Journal article, 1960)The rocks on Langøy have been considered as representing an igneous rock series including metamorphic sedimentary rocks of \"Caledonian type\". The present work shows that they are for the most part high-grade metamorphic ... -
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 ... -
Petrology and metallogeny associated with the Tryvann Granite Complex, Oslo Region.
(NGU Bulletin (423), Journal article, 1992)The Tryvann Granite Complex (TGC) comprises four separate intrusive bodies within the Oslo Graben. It constitutes a differentiated suite of young (240- 245 Ma) alkaline quartz syenites and granites derived from a strongly ... -
Petrology of differential gabbro sheets in the Altenes tectonic window, North Norway.
(NGU Bulletin (414), Journal article, 1989)The petrography of two differentiated gabbro sheets in the low-grademetamorphic Karelian supracrustal sequence of the Altenes Tectonic Window isdescribed. The intrusion have generally undergone extensive deuteric alter-ation. ... -
Petrology, geochemistry and genesis of the type area trondhjemite in the Trondheim Region, Central Norwegian Caledonides.
(NGU (351), Journal article, 1979)Trondhjemite from the Follstad district of the Trondheim region is present within allochthonous Lower Paleozoic eugenosynclinal and partly miogeosynclinal rocks of the Caledonide orogen. Four periods of trondhjemite intrusive ... -
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) -
Tectono-stratigraphic Setting, Structure and Petrology of HP and UHP Memtamorphic Rocks and garnet Peridotites in the Western Gneiss region, Møre and Romsdal, Norway
(NGU-Rapport (2003.057), Report, 2003)This report is a guidebook for a five day excursion in connection with the Alice Wain Memorial West Norway Eclogite Field Symposium held in Selje from June 21st-28th, 2003. The Western Gneiss Region provides some of the ... -
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)