 | | Journal (article/letter/editorial) | | an AMC suite (Rogaland anorthosite province, SW Norway): a Sr and Nd isotopic assessment Olivier Bolle...(ca. 0.93 Ga) Rogaland anorthosite province of SW Norway are discussed. The study focuses on new data obtained...the Pre-Sveconorwegian basement of southernmost Norway, that have a crustal history extending back to...the deep continental crust of southwesternmost Norway of a crustal material strongly different from the...the present deep continental crust in southern Norway. © 2003 Elsevier Science B.V. All rights reserved |  | | Journal (article/letter/editorial) | | layered intrusion (Rogaland anorthosite province, SW Norway): A composite pluton build up by tectonically-driven...accumulation of pyroxenes + Fe – Ti oxides + apatite + plagioclase. In the second area, the melt dominates over...belongs to the Rogaland anorthosite province of SW Norway (e.g. Duchesne et al., 1985a; Duchesne, 2001; Fig...is (Le Maître, 1989): anorthosite = rock with plagioclase content ≥90%; norite = hypersthene diorite; jotunite...(Grenvillian) orogenic belt, in the Rogaland–Vest Agder sector (Fig. 1a). This sector is mainly made of |  | | Report (issue) | | titanium and iron-titanium ore deposits are known in Norway; most of these occur in distinct Proterozoic and...environment Titanium and Iron-Titanium Deposits in Norway SPECIAL PUBLICATION 9 Ilmenite deposits and their...82-7385-108-7 NGU Leiv Eirikssons vei 39 N-7491 Trondheim,Norway Telephone +47 73 90 40 00 Telefax +47 73 92 16...undersøkelse (Geological Survey of Norway) N-7491 Trondheim Norway All rights reserved ISSN: 0801-5961.... 37 On ilmenite and rutile ore provinces in Norway, and the relationships between geological process |  | | Report (edition) | | titanium and iron-titanium ore deposits are known in Norway; most of these occur in distinct Proterozoic and...environment Titanium and Iron-Titanium Deposits in Norway SPECIAL PUBLICATION 9 Ilmenite deposits and their...82-7385-108-7 NGU Leiv Eirikssons vei 39 N-7491 Trondheim,Norway Telephone +47 73 90 40 00 Telefax +47 73 92 16...undersøkelse (Geological Survey of Norway) N-7491 Trondheim Norway All rights reserved ISSN: 0801-5961.... 37 On ilmenite and rutile ore provinces in Norway, and the relationships between geological process |  | | Journal (article/letter/editorial) | | Koldal) and Åna-Sira massif-type anorthosites (Hogstad) (Rogaland Anorthositic Province, south Norway: 930 Ma)...diapirs. The least differentiated compositions of plagioclase and orthopyroxene in the three intrusions (An59–En68... in Koldal, an evolved jotunite. Given that plagioclase and orthopyroxene of the three intrusions display...differentiated compositions than the orthopyroxene and plagioclase megacryts of the enclosing anorthosites, it is...demonstrate that they are much denser than the plagioclase of the surrounding anorthositic crystal mush |  | McEnroe, Suzanne A., Robinson, Peter, Panish, Peter T. (2001) Aeromagnetic anomalies, magnetic petrology, and rock magnetism of hemo-ilmenite- and magnetite-rich cumulate rocks from the Sokndal Region, South Rogaland, Norway. American Mineralogist, 86 (11) 1447-1468 doi:10.2138/am-2001-11-1213 | Journal (article/letter/editorial) | | rocks from the Sokndal Region, South Rogaland, Norway SUZANNE A. MCENROE,1,* PETER ROBINSON,1,2 AND PETER...PANISH2 2 1 Geological Survey of Norway, N-7491 Trondheim, Norway Department of Geosciences, University...Sveconorwegian province of the Baltic shield in south Norway (see review by Ashwal 1993). These igneous rocks...anomaly map of the Rogaland region in southwestern Norway. The magnetic total field was reduced to anomaly...the location of Figures 1 and 2 in southwestern Norway. 1450 McENROE ET AL.: AEROMAGNETICS, PETROLOGY |  | | Journal (article/letter/editorial) | | ilmenite deposit (Rogaland Anorthosite Province, SW Norway) and the formation of Fe–Ti ores in massif-type...series of the Rogaland Anorthosite Province (SW Norway). More than 100 samples from drill cores reveal...Zones and the Lower and Upper Marginal Zones. Plagioclase and whole-rock compositions discriminate the...as a result of mixing of either plagioclase–ilmenite or plagioclase–ilmenite–orthopyroxene–olivine cumulates...with ilmenite as an early liquidus mineral and plagioclase buoyancy are the principal mechanisms responsible |  | | Journal (article/letter/editorial) | | the Rogaland anorthosite PT province (Southern Norway) reveals that both deposits are cumulates but were...The Rogaland anorthosite province (RAP) in South Norway is a typical AMCG (AnorthositeMangerite-Charnockite-Granite)...Egersund-Ogna (EGOG), the SC RI Håland-Helleren and the Åna-Sira massifs, together with the Bjerkreim-Sokndal (BKSK)...the Håland massif, a body very similar to the Åna-Sira massif (Duchesne PT et al., 1985b). The BKSK...1985a; 1989) (Fig. 1). The Tellnes dyke in the Åna-Sira massif varies in composition along strike from |  | | Journal (article/letter/editorial) | | quartz in the charnockitic Kleivan granite, SW-Norway: The Ge/Ti ratio of quartz as an index of igneous...Science and Technology (NTNU), N-7491 Trondheim, Norway a r t i c l e i n f o Article history: Received...Rogaland Igneous Province (Rogaland Municipality, SW-Norway) reveal that the trace element composition of quartz...Rogaland–Vest Agder sector is the westernmost segment of the Precambrian basement of South-Norway. The basement...Mandal–Ustaoset line in the eastern part of the Rogaland/Vest Agder sector (Vander Auwera et al., 2003). These suites |  | | Journal (article/letter/editorial) | | the Rogaland Anorthosite Complex of south-western Norway, in terms of age, major element composition and...Sweden, and the Hunnedalen dykes in south-western Norway, also record the characteristic high Ti–P–K, evolved...2001). In the Rogaland Igneous Complex of southern Norway, jotunites are present as dykes crosscutting massif-type...voluminous in the westernmost terranes of southern Norway (Fig. 1; Table 1; Falkum, 1985), but there are...southern Scandinavia Intrusive Age (Ma) Reference Norway Rymteland pegmatite Vehuskjerrngi granite Tellnes |  | Bybee, G.M., Ashwal, L.D., Shirey, S.B., Horan, M., Mock, T., Andersen, T.B. (2014) Pyroxene megacrysts in Proterozoic anorthosites: Implications for tectonic setting, magma source and magmatic processes at the Moho. Earth and Planetary Science Letters, 389. 74-85 doi:10.1016/j.epsl.2013.12.015 | Journal (article/letter/editorial) | | University of Oslo, P.O. Box 1047, Blindern, 0316, Oslo, Norway a r t i c l e i n f o Article history: Received...Anorthosite Province (Sveconorwegian Province, Norway), all entrain comagmatic, cumulate, high-alumina...to 1 m and all contain exsolution lamellae of plagioclase that indicate the incorporation of an excess...anorthosites. Internal mineral Sm–Nd isochrons between plagioclase exsolution lamellae and the orthopyroxene host...reserved. 1. Introduction Near monomineralic plagioclase-rich intrusions, up to 18 000 km2 in areal extent |  | | Journal (article/letter/editorial) | | and ilmenite from an igneous rock in Rogaland, Norway have been studied by conventional transmission...nearly pure hemo-ilmenite rocks from Rogaland, Norway, which have high coercivities, high and stable...the northwestern part of the Åna-Sira anorthosite body, Rogaland, Norway. Magnetic, microscopic, and chemical...up about 80% of the rock. As minor minerals, plagioclase, biotite, and a small quantity of quartz and...thank S.A. McEnroe of the Geological Survey of Norway for the samples and discussions regarding the magnetic |  | | Report (issue) | | left, Ilmenite open pit mine at Tellnes, Sokndal, Norway. Photograph courtesy of Mike Norton/CC-BY-SA-3...minerals is currently dominated by Australia, Canada, Norway, and South Africa; additional amounts are produced...active magmatic titanium mines—the Tellnes Mine in Norway and the Lac Tio Mine in the Province of Quebec...anorthosite Hemo-ilmenite 1 Lac Tio, Quebec; Tellnes, Norway I–2 Anorthosite-gabbro Ilmenite, titanomagnetite...I–5 Albititic/metasomatized Rutile 3 Kragerø, Norway; Roseland, Va. (in part) I–6 Alkalic/metasomatized |  | | Journal (article/letter/editorial) | | from the Bjerkreim–Sokndal layered intrusion (S. Norway). Part I: Constraints from major elements on the...layered intrusion (Rogaland Anorthosite Province, SW Norway), which results from the crystallization of a jotunite...of cumulates: (1) ilmenite–leuconorite with plagioclase, ilmenite and Ca-poor pyroxene as cumulus minerals...plus magnetite, and (3) gabbronorite made up of plagioclase, Ca-poor and Ca-rich pyroxenes, ilmenite, Ti-magnetite...pole of the linear trends is represented by plagioclase, and the other by a mixture of the mafic minerals |  | Salminen, J., Donadini, F., Pesonen, L. J., Masaitis, V. L., Naumov, M. V. (2006) Paleomagnetism and petrophysics of the Jänisjärvi impact structure, Russian Karelia. Meteoritics & Planetary Science, 41 (12) 1853-1870 doi:10.1111/j.1945-5100.2006.tb00456.x | Journal (article/letter/editorial) | | schists (Koistinen et al. 1996). Major phases are plagioclase, biotite, and quartz, with subordinate muscovite...across. The groundmass of tagamites consists of plagioclase, hypersthene, quartz, cordierite, small amounts...5) measured from dykes and intrusions from south Norway and south Sweden. In this respect, we would believe...mean Egersund-Ogna anorthosites Garsaknat body Åna-Sira Massif Håland-helleren Massif Hunnedalen dikes...The 616 Ma old Egersund basaltic dike swarm, SW Norway, and Late Jänisjärvi impact structure, Russian |  | | Journal (article/letter/editorial) | | generally considered to form by accumulation of plagioclase from tholeiitic, mantle-derived parent magmas...4. Red Mountain granite (RMG) Fig. 3. Quartz-plagioclase-alkali-feldspar diagram showing the modal compositions...(locally with cores of clinopyroxene), biotite, plagioclase, and allanite. 3.5. Biotite–hornblende monzonite...differ from the CQM in containing lower modal plagioclase, and by the presence of clinopyroxene, which...more SiO2 is consistent with fractionation of plagioclase. Zr, Y, and Th contents increase from LAC monzodiorites |  | Weihed, Pär, Arndt, Nicholas, Billström, Kjell, Duchesne, Jean-Clair, Eilu, Pasi, Martinsson, Olof, Papunen, Heikki, Lahtinen, Raimo (2005) 8: Precambrian geodynamics and ore formation: The Fennoscandian Shield. Ore Geology Reviews, 27 (1) 273-322 doi:10.1016/j.oregeorev.2005.07.008 | Journal (article/letter/editorial) | | constitutes large parts of Finland, NW Russia, Norway, and Sweden (Fig. 1). The oldest rocks yet found...containing abundant, complexly zoned or eroded plagioclase phenocrysts like modern calc-alkaline andesites...extending for 350 km from central Lapland to northern Norway. The komatiites are exceptional in their chemical...Ia intrusions, followed by orthopyroxene and plagioclase. Chromite is rare or totally absent, but primary...orthopyroxene is the dominant cumulus phase, followed by plagioclase. Sulphides are of disseminated and breccia type |  | | Book | | observations (e.g. ‘a rock consisting of abundant plagioclase and hornblende phenocrysts set in a finegrained...intermediate plagioclase + augite + opaques’) into an informative, appropriate name (‘plagioclase-hornblende-phyric...determining the appropriate root name Calcic plagioclase in basalt Type mineral – A non-essential mineral...Felsic = light-coloured minerals Quartz Feldspars Plagioclase Alkali feldspar Feldspathoids Muscovite Mafic...in question may possess (e.g. olivine basalt, plagioclase-phyric andesite, aphanitic trachyte). This definition |  | | Journal (article/letter/editorial) | | Akaganeite Alabandite Albite (Na end member plagioclase) Alexandrite Allanite-(Ce) orthite Allargentum...Ankerite Annabergite Anorthite (Ca end member plagioclase) Anothoclase Anthophyllite Antimonselite Antimony...Q–A–P–F diagram (quartz, alkaline feldspar, plagioclase, and foid) designed by Streckeisen (1976) allows...rock consisting mainly of amphibole and little plagioclase with little or no quartz. Dark fine-gr. Extrusive...same minerals as the phenocrysts, although the plagioclase may be more sodic and quartz is generally present | | | Journal (article/letter/editorial) | | Akaganeite Alabandite Albite (Na end member plagioclase) Alexandrite Allanite-(Ce) orthite Allargentum...Ankerite Annabergite Anorthite (Ca end member plagioclase) Anothoclase Anthophyllite Antimonselite Antimony...Q–A–P–F diagram (quartz, alkaline feldspar, plagioclase, and foid) designed by Streckeisen (1976) allows...rock consisting mainly of amphibole and little plagioclase with little or no quartz. Dark fine-gr. Extrusive...same minerals as the phenocrysts, although the plagioclase may be more sodic and quartz is generally present |  | | Report (issue) | | seen for Ca2+ in amphibole, apatite, calcite, plagioclase feldspar, and pyroxene. In common sedimentary...Bikita Field Ullava Länttä 45° Kamativi SWEDEN NORWAY 0° Greenbushes Jiajika CHINA Barkam JAPAN...Lovozera, Russia; Ilímaussaq, Greenland; Oslo, Norway Mafic/ultramafic (blackwall, vein) — — —...Mo (-W) (Iron Mountain, New Mexico; Oslo Graben, Norway; Ermakovka, Siberia) Greisen Sn (-Ta-Nb-Zn) (Younger...percent) usually are associated with muscovite, plagioclase, potassium-feldspar, and quartz and may be from |
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