 | | Journal (article/letter/editorial) | | Carbonatite-related contact metasomatism in the Fen complex, Norway: effects and petrogenetic implications TOM...gate 1, N-0562 Oslo 5, Norway Abstract In the Fen complex (Telemark, S.E. Norway), carbonatites of different...compositions have penetrated feldspathic fenites (alkali feldspar(s) + aegirine augite + alkali amphibole) or older...compositional character among carbonatite magmas in the Fen complex, which may be evaluated in terms of differences...carbonatite parent magma. K EYWORD S" carbonatite, metasomatism, fenite, Fen complex, Norway. Introduction A |  | | Journal (article/letter/editorial) | | peralkaline calcite carbonatite magma in the Fen complex, southeast Norway TOM ANDERSEN Mineralogisk-Geologisk...Universitet i Oslo, Sars gate 1, N-0562 Oslo 5 (Norway) LITHOS Andersen, T., 1988. Evolution of peralkaline...in the Fen complex, southeast Norway. Lithos, 22:99-112. In the Fen complex, Telemark, SE Norway, peralkaline...pyroxene + apatite, followed by nepheline + alkali feldspar and, as the last phase, calcite ), and pyroxenes...felsic interstitial mineral assemblage (alkali feldspar + nepheline + calcite + apatite) corresponding |  | | Journal (article/letter/editorial) | | The Netherlands Fenitization at the Fen complex, southern Norway PETER KRESTEN 1 and VIORICA MOROGAN...MorogalL V., 1986. Fenitization at the Fen complex, southern Norway. Lithos, 29: 2742. t:enitization in...areas within the fenite aureole surrounding the Fen complex is described in terms of petrography and mineral...fenitizing fluids must have had low Xco high asi O aNa a K and aM,,; they have emanated from the nearby intrusions...those at Holla are pictured, except for high aca , a K and aMg of the fenitizing fluids, which most likely |  | | Journal (article/letter/editorial) | | magmatism of carbonatitic affinity in southern Norway Sven Dahlgren* Mineralogical-Geological Museum...Museum, University of Oslo, Sarsgt. 1, N-0562 Oslo, Norway (Received December 2, 1992; revised and accepted...carbonatitic affinities ("damtjernites") in southern Norway were generated during two magmatic events separated...a 1500 km2 large region surrounding the Fen Central Complex. Phlogopite macrocrysts from 10 of these...centered at the Fen Central Complex occurred on a regional scale. This region is termed "the Fen Province" |  | | Journal (article/letter/editorial) | | TEM, 311 AI, Y., and GREEN, D. n., anorthite-K-feldspar system, 337 Albite, AI/Si ordering in, 25 ALDERTON...of, by M6ssbauer spectroscopy, 465 Anorthite-K-feldspar, phase relations in, and solid solutions, 337...in, Beith, Scotland, 125 BAYLISS, P., and FREEMAN,K. J., mineral nomenclature: fernandinite, 511; - -...385 BEVAN, J., and SAVAGE,S., dissolution of K-feldspar, 415 BEVINS,R. E., see ATENCIO,D., 639 Biotite...MITCHELL,R. H., 635 CANADA, Ontario, Coldwater complex, rhenium sulphide, 635; HeralD gold deposit, vaughanite |  | | Journal (article/letter/editorial) | | THE CHEMISTRY OF FENITIZATION" EXAMPLES FROM FEN, NORWAY PETER KRESTEN Geological Survey o[ Sweden, S-751...fenitization: Examples from Fen, Norway. Chem. Geol., 68: 329-349. At Fen, two main types of fenites occur:...r i n g progressive f e n i t i z a t i o n ( M c K i e , 1966, p.263), v a r i a t i o n diagrams of...e r , 1957; Verwoerd, 1966) or 100 oxygens ( M c K i e , 1966; V a r t i a i n e n a n d Woolley, 1976)...g r a p h i c grade of fenit i z a t i o n ( M c K i e , 1966), the p i c t u r e b e c o m e s veiled |  | Dietzel, Christian A.F., Kristandt, Tim, Dahlgren, Sven, Giebel, R. Johannes, Marks, Michael A.W., Wenzel, Thomas, Markl, Gregor (2019) Hydrothermal processes in the Fen alkaline-carbonatite complex, southern Norway. Ore Geology Reviews, 111. 102969 doi:10.1016/j.oregeorev.2019.102969 | Journal (article/letter/editorial) | | Hydrothermal processes in the Fen alkaline-carbonatite complex, southern Norway Christian A.F. Dietzel, Tim...Hydrothermal processes in the Fen alkaline-carbonatite complex, southern Norway, Ore Geology Reviews (2019)... Hydrothermal processes in the Fen alkaline-carbonatite complex, southern Norway Christian A. F. Dietzel1...Buskerud, Telemark and Vestfold County Councils, Fylkeshuset, Svend Foynsgt. 9, 3110 Tønsberg, Norway. 3Department...University of Oslo, PBox 1047 Blindern, 0316 Oslo, Norway. 4Department of Geology, University of the Free |  | Elliott, H.A.L., Wall, F., Chakhmouradian, A.R., Siegfried, P.R., Dahlgren, S., Weatherley, S., Finch, A.A., Marks, M.A.W., Dowman, E., Deady, E. (2018) Fenites associated with carbonatite complexes: A review. Ore Geology Reviews, 93. 38-59 doi:10.1016/j.oregeorev.2017.12.003 | Journal (article/letter/editorial) | | Windhoek, Namibia d Telemark, Fylkeshuset, Postboks 2163, 3103 Tønsberg, Norway e Geological Survey of...and Greenland, Øster Voldgade 10, DK-1350 København K, Denmark f School of Earth and Environmental Sciences...have been identified between the presence of more complex veining textures, mineralogy and brecciation in...typically composed of, 16 and characterized by, K-feldspar, albite, alkali pyroxenes and/or alkali amphiboles...by Brögger (1921) to describe the Fen type 103 locality, Norway are listed in the IUGS classification |  | | Report (issue) | | geologiske undersøkelse (Geological Survey of Norway) NO–7491 Norway All Rights reserved ISSN: 0801–5961 ISBN:...Dimension-stone deposits in larvikite, Oslo igneous province, Norway Tom Heldal, Idunn Kjølle, Gurli B. Meyer and Sven.............................. 19 Aggregates in Norway—Properties defining the quality of sand, gravel...concentrations to geological parameters in the Fen region, southeast Norway Björn Henning Heincke, Mark Smethurst...evaluation in the municipality of Gran, eastern Norway Mark A. Smethurst, Aud Venke Sundal, Terje Strand |  | | Journal (article/letter/editorial) | | Springer-Verlag1986 Magmatic fluids in the Fen carbonatite complex, S.E. Norway Evidence of mid-crustal fractionation...University of Oslo, Box 1047, Blindern, N-0316 Oslo 3, Norway Abstract. Three different types of carbonatite...magma may be recognized in the Cambrian Fen complex, S.E. Norway: (1) Peralkaline calcite carbonatite magma...carbonatites show that the fluid evolution in the Fen complex leads from a regime dominated by juvenile CO2...Aspden 1980) and from carbonatites in the Palabora complex (South Africa; A1dous 1980). In the Oka (Quebec |  | | Journal (article/letter/editorial) | | fluids introduced essentially CaO, CO2, Na20, and K 2 0 while removing SiO2 and A1203. Different trends...post-magmatic episode. Introduction The Aln6 carbonatite complex is situated on Aln6 Island, close to the northeast...silicate, e.g. ijolite or a carbonatite intrusive complex. The Aln6 intrusion consists of four series of...the main complex (Fig. 1). In contrast to Fig. 1. Simplified geological map of the Aln6 complex (after...wholly metasomatic origin of the Aln6 complex postulated by von E c k e r m a n n (1948), recent investigations |  | | Journal (volume) | | mineral discoveries from the Larvik Plutonic Complex, southern Norway 47 Harald Oskar Folvik Mineralene fra...Fikkjebakke industriområde, Sannidal, Kragerø, Telemark 82 Alf Olav Larsen og Arne Åsheim Oberstløytnantskjerpet...Oberstløytnantskjerpet ved Fjellgardane i Fyresdal, Telemark 86 Alf Olav Larsen, Jörgen Langhof og Andreas Karlsson...F-rich richterite from the Hydro quarry, Fen complex, Southern Norway: crystallographic data and crystal-chemistry...locality at the Kjennerudvann lake, Kongsberg, Norway 110 Roy Kristiansen and Hans Christian Olsen |  | | Journal (article/letter/editorial) | | SILICATE AND CARBONATITIC MAGMAS IN THE QASSIARSUK COMPLEX, GARDAR RIFT, SOUTHWEST GREENLAND Tom ANDERSEN...Blindern, N–0316 Oslo, Norway Abstract The Mesoproterozoic Qassiarsuk complex in the Gardar Rift in southwestern...microprobe indicates that silicate magmas with K-poor, ultramafic and K-rich, basic to intermediate compositions...of the latter today show extreme K2O/Na2O at (Na + K)/Al well below 1.0, reflecting selective loss of Na...liquid immiscibility, Gardar rift, Qassiarsuk Complex, Greenland. Sommaire Le complexe mésoprotérozoïque |  | Bernard-Griffiths, Jean, Peucat, Jean -Jacques, Fourcade, Serge, Kienast, Jean -Robert, Ouzegane, Khadidja (1988) Origin and evolution of 2 Ga old carbonatite complex (Ihouhaouene, Ahaggar, Algeria): Nd and Sr isotopic evidence. Contributions to Mineralogy and Petrology, 100 (3) 339-348 doi:10.1007/bf00379743 | Journal (article/letter/editorial) | | Origin and evolution of 2 Ga old carbonatite complex (Ihouhaouene, Ahaggar, Algeria): Nd and Sr isotopic...interest o f the Ihouhaouene syenite-carbonatite complex (Fig. 1, inset) lies in its particular characteristics... However, the carbonatites of the Ihouhaouene complex are associated with SiO2-saturated syenitic rocks...Bernard-Griffiths plex is comparable to the Mountain Pass complex, California (Olson et al. 1954), to the rocks of...of the eastern portion of the Oka carbonatite complex, Canada (Eby 1975), and also to the carbonatites |  | | Journal (article/letter/editorial) | | similar pattern (this research) is found at Fen, Norway. Rare earths are enriched in LREE with smooth... creating fenites with enrichment in Mg, Na, and K; and (2) later igneous depositing carbonatites and...The Cambro-Proterozoic calciocarbonatite near Fen, Norway is particularly Nb-rich in breccia zones, and...anorogenic regime during carbonatite petrogenesis at Fen, metamorphism has obscured pyrochlore zonation and...strontium, niobium, fluorine, metamorphism, Meech Lake, Fen. INTRODUCTION Pyrochlore discovery in Gatineau Park |  | | Journal (article/letter/editorial) | | in the literature, conclusions are drawn that the K and Na contents of carbonatitic melts that induce... which have a source in the mantle, and that the K and Na are not derived from the crust during passage...carbonatite, sodic metasomatism, potassic metasomatism, K-feldspar, pseudotrachyte. Sommaire Le but de ce travail...littérature, mènent à la conclusion que les teneurs en K et Na des magmas carbonatitiques qui provoquent cette...leur origine dans le manteau. C’est donc dire que le K et le Na ne seraient pas dérivés de la croûte lors |  | | Journal (article/letter/editorial) | | paleomagnetic signature of the Alnø carbonatite complex (NE Sweden): Additional controversy for the Neoproterozoic...Bergen, Norway c Geological Survey of Norway, Leiv Eirikssons vei 39, N-7401 Trondheim, Norway Institute...University of Science & Technology, N-7491 NTNU, Norway e School of Geosciences, Private Bag 3, University...paleomagnetic investigation of the Alnø carbonatite complex dikes was undertaken in an attempt to refine the...shows that the Alnø Complex (584 ± 7 Ma) is coeval with the Fen Carbonatite Complex (583 ± 15 Ma) via 40 |  | | Journal (article/letter/editorial) | | pioneering work on the rocks of the Fen Complex in southern Norway. He defined fenites as a suite of rocks...sourced from an ijolite–melteigite magma within the complex. The term ‘fenite’ has since taken on a more general...carbonatite-present situations. A study of the Alnö carbonatite complex by Morogan and Woolley (1988) documented the development...(commonly Or40–60Ab60–40). The compositions of alkali feldspar (almost pure albite: Ab>90 or orthoclase: Or>85)...intrusion. Feldspar produced near the aureole–intrusion contact is usually hypersolvus alkali feldspar and original |  | Andersson, Stefan S., Wagner, Thomas, Jonsson, Erik, Michallik, Radoslaw M. (2018) Mineralogy, paragenesis, and mineral chemistry of REEs in the Olserum-Djupedal REE-phosphate mineralization, SE Sweden. American Mineralogist, 103 (1) 125-142 doi:10.2138/am-2018-6202 | Journal (article/letter/editorial) | | et al. 2008) or the mineralization at the Fen complex, Norway (e.g., Andersen 1984). In addition, ample...2008, and references therein) and in the Fen complex, Norway (Andersen 1986). In contrast, a fewer number...metasedimentary rocks (Figs. 2a and 2b), or within a K-feldsparand biotite-rich granite (Fig. 2c). A broader...alteration envelope in the granite with albitized K-feldspar together with quartz, biotite, and muscovite...monazite-(Ce), xenotime-(Y), and fluorapatite in a K-feldspar-rich granite, surrounded by a weak alteration |  | | Journal (article/letter/editorial) | | Sokli, Siilinjärvi, Phalaborwa, Jacupiranga and Fen, which contain Mg-rich calcites and/or dolomite,...only dolomitic carbonatites are ‘rauhaugite’ from Fen (FE1b) and ‘beforsite’ from Jacupiranga ( JA2). Examples...evidenced by abundant aegirine, nepheline, and K-feldspar. Quebec, Canada Quebec, Canada Oka, Quebec...Germany FE1 Dolomite carbonatite Hydro quarry, Fen, Norway Calcite and dolomite (rauhaugite) dyke FE2...calcite. Cappellen quarry, Fen, Norway FE4 Apatite sövite Söve Mine, Fen, Norway FE5 Apatite sövite |  | Skelton, A., Hode Vuorinen, J., Arghe, F., Fallick, A. (2007) Fluid–rock interaction at a carbonatite-gneiss contact, Alnö, Sweden. Contributions to Mineralogy and Petrology, 154 (1) 75-90 doi:10.1007/s00410-007-0180-1 | Journal (article/letter/editorial) | | oligoclase þ K2 O þ Na2 O CaO MgO FeO ¼ albite þ K-feldspar þ arfvedsonite þ aegirene-augite þ H2 O þ SiO2...affect both the wall rock of the intrusive complex and the complex itself (e.g., Brögger 1921; Eckermann...transformation of granitic gneiss to syenite at Fen, Norway, requires the removal of silica and addition...Precambrian (584 ± 13 Ma; Andersen 1996) Alnö complex consists of nepheline syenites, ijolites and carbonatites...meters, becoming thin and vein-like. The 4 km2 complex is hosted by migmatitic gneisses. Hode Vuorinen |  | | Journal (article/letter/editorial) | | Nepheline-Bearing Rocks From the Poohbah Lake Complex, Ontario: Malignites and MaUgnites Roger H. Mitchell...Canada Abstract. Malignites from the Poohbah Lake complex of northwestern Ontario, Canada are melanocratic...presence of nepheline plus a single potassium-rich feldspar (orthoclase or microcline) and devoid of exsolution...00 R.H. Mitchell and R.G. Platt: Poohbah Lake Complex, Ontario 256 Table 1. Poohbah Lake malignites...conotations. In 1912 Daly described from the Kruger complex of British Columbia, Canada, nepheline syenites |  | Ulrych, J., Novák, J. K., Lang, M., Balogh, K., Hegner, E., Řanda, Z. (2006) Petrology and geochemistry and K–Ar ages for Cenozoic tinguaites from the Ohře/Eger Rift (NW Bohemia) Neues Jahrbuch für Mineralogie - Abhandlungen, 183 (1) 41-61 doi:10.1127/0077-7757/2006/0059 | Journal (article/letter/editorial) | | geochemistry and K–Ar ages for Cenozoic tinguaites from the Ohře/Eger Rift (NW Bohemia) J. Ulrych, J. K. Novák...Novák, M. Lang, Praha, K. Balogh, Debrecen, E. Hegner, München, and Z. Řanda, Řež With 11 figures and 11...patterns interstitially in a mosaic of alkali feldspar and foids) phonolites, hereafter referred to as...crustal levels with limited assimilation of crust. K–Ar ages of 31– 28.5 Ma for five samples suggest that...the first K–Ar data reported by Ulrych & Balogh (2000) probably due to disturbance of the K–Ar isotopic |  | Weng, Qiang, Yang, Wu-Bin, Niu, He-Cai, Li, Ning-Bo, Shan, Qiang, Fan, Guo-Qiang, Jiang, Zhao-Yong (2021) Two discrete stages of fenitization in the Lizhuang REE deposit, SW China: Implications for REE mineralization. Ore Geology Reviews, 133. 104090pp. doi:10.1016/j.oregeorev.2021.104090 | Journal (article/letter/editorial) | | Keywords: Lizhuang REE deposit Syenite-carbonatite complex Two-stage fenitization REE remobilization and precipitation...occurs in and around the alkaline-carbonatite complex, and is closely associated with rare earth elements... SW China, is hosted in a syenite-carbonatite complex with low- and high-grade fenitization. In this...alization. Our results show that the whole-rock Na/K ratios gradually increase from the fresh syenite,...fenites, as well as mineral replacements, such as K-feldspar is replaced by albite and Ca-rich clinopyroxene |  | Broom-Fendley, Sam, Brady, Aoife E., Horstwood, Matthew S.A., Woolley, Alan R., Mtegha, James, Wall, Frances, Dawes, Will, Gunn, Gus (2017) Geology, geochemistry and geochronology of the Songwe Hill carbonatite, Malawi. Journal of African Earth Sciences, 134. 10-23 doi:10.1016/j.jafrearsci.2017.05.020 | Journal (article/letter/editorial) | | rock is only fenitised to a low degree, with K-feldspar replacement most-prominent at the edges of the...euhedral pyrite, anhedral pyrochlore and anhedral K-feldspar (Fig. 4A). Zircon grains are euhedral to subhedral... It ranges from calcite-rich rocks through to complex, multi-phase samples but most commonly comprises...xenocrysts of zircon, pyrochlore, pyrite and K-feldspar are present and are rounded and altered to varying...varying degrees. Pyrite, zircon and K-feldspar show little rounding and are found in bands while pyrochlore |
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