 | | Journal (article/letter/editorial) | | MANTLE AND CRUSTAL COMPONENTS IN A CARBONATITE COMPLEX, AND THE EVOLUTION OF CARBONATITE MAGMA: REE AND...AND ISOTOPIC EVIDENCE FROM THE FEN COMPLEX, SOUTHEAST NORWAY*’ TOM ANDERSEN” Department of Geology,... University Oslo, N-0316 Oslo (Norway) of (Received September 22,1986; accepted for publication January...Mantle and crustal components in a carbonatite complex, and the evolution of carbonatite magma: REE and...and isotopic evidence from the Fen complex, southeast Norway. Chem. Geol. (Isot. Geosci. Sect.), 65: 147-166 |  | | Journal (article/letter/editorial) | | Springer-Verlag 1973 Gravity Studies of the Fen Complex, Norway, and Their Petrological Significance* I v...of Oslo, Oslo 3, Norway Reveiced September 7, 1972 Abstract. The Fen alkaline complex, which is about...almost circular gravity high centered above the complex, the residual peak value being about q- 23 regal...carbonatites and alkaline silicate rocks. I n the Fen complex, which belongs to the subvolcanic group (Verwoerd...Wyoming 82070. S* 116 I.B. Ramberg : of this complex. A preliminary account based on one gravity profile |  | | Journal (article/letter/editorial) | | Rare Earth Element Geochemistry of the Fen Alkaline Complex, Norway Roger H. Mitchell* and Arild O. Brunfelt...Brunfelt Mineralogisk-GeologiskMuseum, Oslo, Norway Abstract. Determination of rare earth element (REE)...(REE) abundances in rocks of the Fen complex has shown that within rocks of the first magmatic series REE...differentiation and liquid immiscibility on the Fen magmas are discussed and it is considered that parental...limited (< 10%) partial melting of the mantle. All the Fen rocks are placed in a petrogentic scheme in which |  | | 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) | | Springer-Verlag 1973 Lherzolite Nodules from the Fen Alkaline Complex, Norway* W . L. Griffin Institutt...Institutt for Geologi, University of Oslo, Oslo 3, Norway Received September 7, 1972 Abstract. The alkaline...(damkjernite) of the Fen alkaline complex contain abundant rounded inclusions of spinel lherzolite, closely similar...d t h e Caledonian orogenic belt. T h e F e n complex, which has a n a r e a of o n l y a b o u t 4 k...ultramafic rocks (damkjernite) into the central complex and surrounding gneisses, by a gas coring mechanism |  | | Journal (article/letter/editorial) | | COBALT AND IRON GEOCHEMISTRY OF THE FEN ALKALINE COMPLEX, SOUTHERN NORWAY ROGER H. MITCHELL* and ARILD O... BRUNFELT Mineralogisk-Geologisk Museum, Oslo (Norway) Received August 6, 1974 Whole rock abundances...Co and total Fe are presented for the Fen carbonatite complex. Average Sc and Co abundances are as follows:...trends for this series found in the Oka carbonatite complex. 1. Introduction Eby [ 1] in a study of the Sc...Sc geochemistry of the Oka carbonatite complex has demonstrated that Sc is enriched in the later members |  | | Journal (article/letter/editorial) | | been deduced from the geotherm obtained for the Fen (Norway) lherzolites. This geotherm (oceanic type) is...s~ivites, and associated fenites of the Aln5 alkaline complex. According to v. Eckermann (1948, 1958, 1966, 1974)...(1966, 1974) for clinopyroxenes from the Aln5 complex, and by Roedder (1965) and Mitchell et al. (1973)...crosses: damkjernite, Fen area (Griffin & Taylor 1974), inclined crosses: Fen lherzolites (Griffin 1973)...Edelman 1975), and various clinopyroxenes from the Fen damkjernite (Griffin & Taylor 1973, 1974, Griffin |  | | Journal (article/letter/editorial) | | pages 45-54, 1980 Pyroxenesof the Fen alkaline complex,Norway Rocrn H. MIrcHnu- Department of Geologlt...pyroxenesfrom the undersaturatedrocks of the Fen alkaline complex. Four groups of pyroxenes are present: (l)...tionof the ijolite-silicocarbonatite series.The Fen complexis consideredto representthe root ofan undersaturatedvolcano...magma. Thus none of the rocks currently exposedat Fen are related by in-situ ftactional crystallizationof...crystallizationof a singlebatch of magma. Introduction The Fen complex of alkaline rocks and carbonajust to the tites |  | | Journal (article/letter/editorial) | | applied to a complex of related carbonate and silicate rocks in a magmatic or extrusive complex. Primary...(1895) at Alnö, Sweden, and of Brøgger (1921) at Fen, in Norway, that a magmatic origin was postulated for...calcite carbonatite such as are found at the Fen complex. In fact, the genetic questions highlighted...centimeter-to-decimeter scale. For example, at the Fen complex (Brøgger 1921, Andersen 1988), there is a spectrum...limit permits the recognition in the Jacupiranga complex of Brazil, of a carbonatite suite made up of perovskite |  | Çimen, Okay, Kuebler, Corinne, Simonetti, Stefanie S., Corcoran, Loretta, Mitchell, Roger, Simonetti, Antonio (2019) Combined boron, radiogenic (Nd, Pb, Sr), stable (C, O) isotopic and geochemical investigations of carbonatites from the Blue River Region, British Columbia (Canada): Implications for mantle sources and recycling of crustal carbon. Chemical Geology, 529. 119240 doi:10.1016/j.chemgeo.2019.07.015 | Journal (article/letter/editorial) | | contrasting, anorogenic tectonic settings at Chipman Lake, Fen, and Jacupiranga, and indicate that similar upper...et al. (2018) argue that the Miaoya carbonatite complex, which is located within a major collision-related...isotopic data for carbonatite samples from the Fen (Telemark, Norway), Jacupiranga (São Paulo State, Brazil)...anorogenic carbonatite compexes. D Finally, given the complex tectono-metamorphic history of the geological region...these are: the Insular Belt, the Coast Plutonic Complex, the Intermontane Belt, the Omineca Crystalline |  | | Journal (article/letter/editorial) | | E in carbonatites 10000 , , r , ~ f , COMPLEX UGANDA 100000 , -4 F'EN C O M P L E X ( N...concentration in five carbonatites of the Uganda complex, Africa. bration for the rare earths is a serious...studied ten carbonatites from Uganda, (Africa), Fen (Norway), Angola and Congo (Africa). The analytical results...carbonatites and one dankjernite (P30) of the Fen complex, Norway. Uganda, North of Lake Victoria, they belong...P19 P20 P26 P30 1.25 0.9 Pl14 Pl17 0.025 P34 Fen 10.6 7.05 8.2 2.42 Angola 17.3 8.1 Metamorphic |  | | Journal (article/letter/editorial) | | in cordierite-orthoamphibole-bearing rocks from, Norway, 563 BARNETT, R. L., 95 BARNICOAI', A. C., 357...280 Bushveld complex, see South Africa BUTCHER, A. R., magnetitite layer in Bushveld Complex, 465 Caceres...cathodoluminescence petrography of, 591; see also Norway CARLSON, W. D., porphyroblast growth, 317 CARSWELL...447; --, of nepheline syenites of the Igaliko complex, Greenland, 459; --, in alkali feldspars from S...cordierite--orthoamphibole-bearing rocks from, Norway, 563 Cornwall, barstowite, a new mineral from, |  | | Journal (article/letter/editorial) | | La/Yb ratios that partial melting of mica-garnet-lherzolite mantle can form katungite because of the very...assumed that the whole rock geochemistry of garnet lherzolite is dominated by the REE content of garnet and...concentrated without fractionation, that garnet lherzolite of the type considered here is unsuitable for...the local geothermal gradient and the slope of lherzolite solidus-neither of which are known at the site...Curve A." Lherzolite with 10% clinopyroxene ( L a / Y b = 100) and 10% garnet. Curve B." Lherzolite with 5% |  | | Book | | mode to be determined, or if the carbonates are complex Ca–Mg–Fe solid solutions, then the chemical classification...perovskite. It is evident that kimberlites are complex hybrid rocks in which the problem of distinguishing...originate by the disaggregation of mantle-derived lherzolite, harzburgite, eclogite and metasomatized peridotite...in which phlogopite occurs as phenocrysts. The complex compositional and mineralogical criteria required...used for peralkaline varieties characterized by complex Zr and Ti minerals, such as eudialyte, rather than |  | | Book | | Kresten Valentin R. Troll The Alnö Carbonatite Complex, Central Sweden GeoGuide Series editors Wolfgang...Kresten Valentin R. Troll • The Alnö Carbonatite Complex, Central Sweden 123 Peter Kresten Section for...silicate rock associations focused on the Alnön and Fen complexes in the Fennoscandian Shield (Högbom 1895...this respect, the late Proterozoic Alnö igneous complex in central Sweden is one of the most classical...research on the Alnö carbonatite and alkaline igneous complex since the very first descriptions by Högbom in 1895 |  | | Journal (article/letter/editorial) | | megacrysts. Sample localities The plutonic Khibiny complex is part of the Kola alkaline province and was emplaced...Spitsbergen Khibiny (Russia) Fen (Norway) The plutonic alkaline-carbonatite Fen complex consists of clinopyroxenites...Eledoi, Lashaine, and Labait (Tanzania) Khibiny Fen Wilcza Góra Eifel Calatrava Finero Monte Vulture...Finero complex is a peridotite massif that was exhumed during the Alpine orogeny. The complex is subdivided...Oldoinyo Lengai (Tanzania) Monte Vulture (Italy) Fen (Norway) OL-A-1 & 2 OL-P-1,2 & 3 Megacrysts Megacrysts |  | | Journal (article/letter/editorial) | | from coexisting immiscible fractions from the Fen Complex (Mitchell and Brunfelt, 1975) are connected by...to REE distribution in magmas and upper mantle lherzolite. Mysen (1979) proposed that mantle metasomatism...than those in ijolites at the Oka Carbonatite Complex. Rare earth element partition coefficients between...La/Yb=97, average of two analyses) from the Fen Complex (Mitchell and Brunrlrauhaugite/damtjernite =...REE data from a fenitized quartzite (Borallan Complex, Scotland) characterized by light REE enrichment |  | | Journal (article/letter/editorial) | | the Grønnedal-Ika complex, Greenland (Halama et al., 2005) and the Fen complex, Norway (Anderson, 1986)...to be metasomatic in origin (e.g. Sallanlatvi Complex, Kola, Zaitsev et al., 2004; Lueshe, Democratic...magnesite-dolomite carbonatites in the Sallanlatvi Complex, Kola (Zaitsev et al., 2004). In addition, the...and chlorite than earlier carbonatites in the complex (Zaitsev et al., 2004). Experiments have shown...dolomitic carbonate melt is in equilibrium with lherzolite in the magnesite stability field (Dalton and Presnall |  | | Journal (article/letter/editorial) | | as dykes within the Igaliko Nepheline Syenite Complex, as eruptive rocks and diatremes at Qassiarsuk...dykes in this area (Fig. 1). The Grønnedal-Íka complex was mapped and described by Emeleus (1964), Gill...carbonatite plug is the latest intrusion within the complex, cutting several phases of earlier nepheline syenite...Henriksen, 1975), although they cut the Grønnedal-Íka complex. Individual lamprophyres have been dated at 1227R29...near to and within the Igaliko Nepheline Syenite Complex (syn. Igaliku); the carbonatite dykes are associated |  | | Journal (article/letter/editorial) | | that of lherzolites, the compositions of spinel lherzolite should form the basis for this estimate. It is...is suggested that the compositions of spinel lherzolite represent both undepleted and depleted compositions...Continental spinel lherzolite Oceanic spinel lherzolite Continental garnet lherzolite a a a 54.976...Lherzolites A total of 302 analyses of spinel lherzolite from continental environments was available,...Element Composition of Upper Mantle 163 SPINEL LHERZOLITE CONTINENTAL 55 51 ~9 47 45 45 41 59 57 :: ' |  | Johnson, Clark M., Bell, Keith, Beard, Brian L., Shultis, Aaron I. (2010) Iron isotope compositions of carbonatites record melt generation, crystallization, and late-stage volatile-transport processes. Mineralogy and Petrology, 98 (1) 91-110 doi:10.1007/s00710-009-0055-4 | Journal (article/letter/editorial) | | up the bulk of the carbonatites within a given complex, but late-stage carbonatites do occur, where these...compositions measured in these minerals record complex differentiation pathways, mixing of phenocrysts...fenitization occurs at the upper levels of a carbonatite complex, and sodic fenitization occurs at greater depths...of fenitizing fluids has been argued to reflect complex evolution of fluids (e.g. Andersen 1986; Kresten...of fluid inclusions in apatite from the Fen carbonatite, Norway, identified a magmatic fluid that was rich |  | | Journal (article/letter/editorial) | | clinopyroxenite xenoliths in the Oslo Rift, SE Norway E.-R. Neumann, T. Andersen, and E.W. Mearns Mi...Mineralogisk-Geologisk Museum, Sarsgt. 1, N-0562 Oslo 5, Norway Abstract. Olivine clinopyroxenite xenoliths in...lines. M, a mildly depleted mantle source under S Norway (Mearns 1986; Neumann et al. 1988); B, a basalt...model for the pre-Permian upper crust in south Norway, based on the average of Precambrian granitic gneisses...gneisses, granites and amphibolites in southern Telemark (Andersen 1987); C~ and C2, depleted intermediate |  | | Journal (article/letter/editorial) | | the Haast River area is underlain by a plutonic complex or magma chambers at depth in which fractionation...of carbonatites at Haast River is diverse and complex. Brown weathering varieties are dominated by ankerite...zealand has also been described from the Bayan Obo complex, China (Zhang et al. 1995, reported in Yang & Woolley...inclusions in country rock of the Kalkfeld carbonatite complex, Namibia. The fluids are interpreted as having...rocks outside the main area of the carbonatite complex contain minerals that show varying degrees of enrichment |  | | Journal (article/letter/editorial) | | Postbox 1047 Blindern, N-0316 Oslo, Norway Regional Centre Buskerud, Telemark and Vestfold, Fylkeshuset, Svend...Svend Foynsgate 9, N-3126 Tønsberg, Norway Received 14 June 2007; received in revised form 13 October...nepheline syenite complexes. The Larvik plutonic complex has been dated at 298.6 ± 1.4 to 292.1 ± 0.8 Ma...(Dahlgren et al., 1996) whereas the Skrim plutonic complex (north of Skien, just off the map in Fig. 1B) is...where it has been intruded by the Larvik plutonic complex, is highly deformed and metamorphosed. Clinopyroxene |  | | Journal (article/letter/editorial) | | Investigation of the Chilwa Island Carbonatite Complex, Malawi: Evidence for a Depleted Mantle Source... rocks from the early Jurassic, Chilwa Island complex, located in southern Malawi, central Africa, suggest...non-nephelinitic intrusive silicate rocks reveal a more complex evolutionary history, involving either selective...disseminations (Garson & Smith, 1958). Five per cent of the complex (Fig. 2) exposed at the surface consists of plugs...1290, and N 1295) from the outer parts of the complex are characterized by lower contents of Downloaded |
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