 | Zambezi, P., Hale, M., Voncken, J. H. L., Touret, J. L. R. (1997) Bastnďż˝site-(Ce) at the Nkombwa Hill carbonatite complex, Isoka District, Northeast Zambia. Mineralogy and Petrology, 59 (3) 239-250 doi:10.1007/bf01161861 | Journal (article/letter/editorial) | | Bastn isite-(Ce) at the Nkombwa Hill carbonatite complex, Isoka District, northeast Zambia P. Zambezi 1...1996 Summary Within the Nkombwa Hill carbonatite complex, bastn~isite-(Ce), (Ce,La)CO3E has been identified...size, replacing monazite and in association with baryte, in a matrix of dolomite. In common with bastn~isite-(Ce)... Bastn~isite-(Ce) at the Nkombwa Hill carbonatite complex 241 32 °151'E N tO° 9 ' S - +. Ankeritlc dolomite...for phosphorous; monazite for the rare earths; baryte for barium; celestite for strontium; fluorite for |  | | Journal (article/letter/editorial) | | the principal primary REE mineral. Within each complex the C â O and Sr â Nd isotopic data are similar...mineralization and its host carbonatites in each complex are derived from the same source and are co-genetic..., Mountain Pass (USA) (Olsen et al., 1954), Fen (Norway) (Andersen, 1986), Tundulu and Kangankunde (Malawi)...Khibina is the largest (about 1327 km2) intrusive complex of agpaitic (peralkaline) nepheline syenites and...elliptical in shape and concentrically zoned. The complex contains a wide variety of magmatic and metasomatic |  | | Journal (article/letter/editorial) | | similar pattern (this research) is found at Fen, Norway. Rare earths are enriched in LREE with smooth...are enriched in Ba and Ce. They are composed of baryte, calcite, phlogopite, fluorapatite, magnesioriebeckite...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, ďŹuorine, metamorphism, Meech Lake, Fen. INTRODUCTION Pyrochlore discovery in Gatineau Park |  | | Journal (article/letter/editorial) | | (hematite-calcite-dolomite carbonatite) in the Fen central complex, Telemark (South Norway) TOM ANDERSEN Institu tt .(br...~ffversitetet i Oslo. Box 104 7. Blindern, N-Oslo 3 (Norway) LITHOS 0 Andersen, T., 1984. Secondary processes...in the Fen central complex, Telemark (South Norway). Lithos, 17: 227-245. In the Fen complex, hematite-calcite-dolomite...were derived from groundwater flowing into the complex from surrounding Precambrian gneisses. During oxidation...reequilibrated carbonatite in the Fen complex, Norway. The r~bdberg of the Fen complex (literally: "redrock", an |  | Kozlov, Evgeniy, Fomina, Ekaterina, Sidorov, Mikhail, Shilovskikh, Vladimir, Bocharov, Vladimir, Chernyavsky, Alexey, Huber, MiĹosz (2020) The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy and Geochemistry. Minerals, 10 (1) 73 doi:10.3390/min10010073 | Journal (article/letter/editorial) | | Devonian carbonatiteâijoliteâpyroxeniteâolivinite complex comprises several carbonatite fields: Neske Vara...promoted the massive precipitation of ancylite and baryte and, to a lesser extent, strontianite, bastnäsite...Importantly, Mongolia [52,53], Namibia New Zealand Norway [58], Russia [59â64], South the weight percentage...region, Russia) is one of more than massif is complex due to its multiphase nature. The Vuoriyarvi massif...the sequence of formation) olivinites, massif is complex due to its multiphase Theproduced Vuoriyarvi(in |  | 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) | | It ranges from calcite-rich rocks through to complex, multi-phase samples but most commonly comprises...Localised assemblages of euhedral synchysite-(Ce), baryte, and anhedral strontianite are disseminated throughout...euhedral synchysite-(Ce) and parisite-(Ce), euhedral baryte and anhedral strontianite or calcite (Fig. 4D)...ďŹuorite, apatite, calcite/ferroan-calcite, quartz and baryte (Fig. 4F). Accessories include xenotime, zircon...reaction. Late-stage minerals include anhedral baryte and quartz. 3.4.2. Mn-Fe-veins Mn-Fe-rich rocks |  | | Journal (article/letter/editorial) | | ancylite-(Ce) or synchysite-(Ce), strontianite and baryte after burbankite and carbocernaite. The metasomatic...Occasionally, they form the major part of the complex and may be of economic importance, e.g. at Mountain...small in comparison with earlier carbonatites, e.g. Fen (Andersen, 1986), and Qaqarssuk (Knudsen, 1991)....- B a minerals is often difficult due to their complex chemical compositions, with a wide variety of solid...BaA12Si3Olo.4H20 (Ba,K) I_2(Si,A1)8OI6.6H20 strontianite baryte barytocalcite SrCO3 BaSO4 BaCa(CO3)2 The alkaline |  | | Journal (article/letter/editorial) | | metasomatic aureole around the Chilwa Island carbonatite complex were chosen for study. In addition to the main...most abundant. Calcite, nahcolite, burbankite and baryte were found in the inclusions. Decrepitation of...associated with magma at deeper levels in the complex, of higher temperature, and possibly with a lower...emplacement of the Borralan alkaline/carbonatite complex in Scotland. BĂźhn and Rankin (1999) investigated...partitioning in natural magma systems is highly complex and only understood reasonably well for a few geochemically |  | | Journal (article/letter/editorial) | | 2017). Although such contrasting materials as baryte, borates, coking coal, natural rubber, fluorspar...hydrothermal alteration of carbonatite in the Fen Complex, Norway: mineralogy, geochemistry, and implications...formationâ (Marien et al., 2018). In the Fen carbonatite Complex up to 1.6 wt.% total REE occurs in hydrothermally...platinum-group minerals of the Freetown Layered Complex, Sierra Leoneâ (Bowles et al., 2018). Large alluvial...platinum-group minerals of the Freetown Layered Complex, Sierra Leone. Mineralogical Magazine, 82, xxxâyyy |  | Ăimen, 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 (SĂŁo 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) | | Geology and mineralogy of the Sarfart6q carbonatite complex, southern West Greenland KARSTEN SECHER & LOTTE...Geology and mineralogy of the Sarfart6q earbonatite complex, southern West Greenland. Lithos 13, 199-212. Oflo...Oflo. ISSN 0)24-4937. The Sarfart6q carbonatite complex was emplaeed in lower Palaeozoic time in a ~eakness...accompanying ~renitisation was of the Na-type. The whole complex covers about 90 km 2. The main rack-forming minerals...Andrews & Emeleus (1976). The Qaqarssuk carbonatite complex (F~g. 1) was found in 19o5 by Kryolitselskabet |  | Rampilova, Maria, Doroshkevich, Anna, Viladkar, Shrinivas, Zubakova, Elizaveta (2021) Mineralogy of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India. Minerals, 11 (4) 355 doi:10.3390/min11040355 | Journal (article/letter/editorial) | | Mineralogy of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India Maria Rampilova 1, *, Anna Doroshkevich...Abstract: The main mass of the Sevathur carbonatite complex (Tamil Nadu, India) consists of dolomite carbonatite...minerals. Dolomite carbonatite at the Sevathur complex contains norsethite, calcioburbankite, and benstonite...monazite-(Ce) and barite-II. Carbonatites of Sevathur Complex, Tamil Nadu, India. Minerals 2021, 11, Keywords:...the Sevathur minerals. The Sevathur carbonatite complex is the first discovered carbonatite from Tamil |  | | Journal (article/letter/editorial) | | accessory minerals of the ultramafic Delitzsch complex, Germany: implication for cooling history of carbonatites...the ultramafic lamprophyreâcarbonatite Ĺ˝UMLâCR. complex of Delitzsch, Germany, shows significant variations...throughout the crystallization history of the complex, from the early stage of the plutonic dolomite...ultramafic lamprophyreâcarbonatite Ĺ˝UMLâ CR. Delitzsch complex in Germany, is not widely ) Corresponding author...1960s and in the 1970s, and knowledge of this complex is exclusively based on drillcore material. In |  | | Journal (article/letter/editorial) | | bscnet.ru Introduction The Newania carbonatite complex is situated 40 km east of Udaipur, within the 2...of Gold. The carbonatitic nature of the Newania complex was first recognized by Dar (1964) during prospecting...(1968), and suggest that the Newania carbonatite complex may be older than previously recognized. The Newania...noteworthy feature of the Newania carbonatite complex is the presence of graphite as part of the carbonatite...molybdenite, zircon, bismite, carbocernaite, pyrochlore, baryte and rutile are accessory minerals. Amphibole and |  | | Journal (article/letter/editorial) | | titanian, Botswana, anal., opt., X-ray, sp. gr., 775; Norway and Sweden, anal. (TiO 2 only), opt., X-ray, 775...Ardglen, New South Wales, todorokite, 757. Arendal, Norway, titanian andradite, 775. A rltungameteorite, metallography...of residual soils from the Bulcu~u carbonatite complex, southeastern Uganda, 770. BANERJEE (SUBIR K.)...feldspars, 914. Barwell meteorite, anal., 101. Baryte, etching of, 750. Basalt, electrolysis of, 1104...celsian, 914. Bronzite, Assisi meteorite, 595 ; Norway, in troctolite, anal., 504. BROOKINS (DOUGLAS G |  | | Journal (article/letter/editorial) | | minor dolomite. Cathodoluminescence reveals a complex history, both for the major minerals which show...and often pale yellow dolomite and occasionally baryte. The fresh groundmass 'sparkles' with numerous...petrographic textures of these carbonatites are complex. It is clear that the rocks have experienced several... This zoning is usually concentric but can be complex with zoning nonconcentric with the phenocryst margin...orange and nonluminescent bands. The bands reveal complex growth and resorption histories for some calcite |  | | Journal (article/letter/editorial) | | discovered within the Hawasina Complex underlying the Semail Ophiolite Complex at the southern part of the...carbonatites occur within rocks of the Hawasina Complex (Fig. 1), i.e. the lowermost member of the allochthonous...radiolarian chert of the Haliw Formation (Hawasina Complex, Fig. 1) in the middle and southeastern parts of...Ophiolite Complex that was obducted from the northeast onto the Haybi Complex and the Hawasina Complex (Fig...in some cases cored by volcanics of the Haybi Complex, in others by fragments of the Arabian platform |  | Mikhailova, Julia A., Pakhomovsky, Yakov A., Konopleva, Natalia G., Kalashnikov, Andrey O., Yakovenchuk, Victor N. (2022) Fluorine Controls Mineral Assemblages of Alkaline Metasomatites. Minerals, 12 (9) 1076 doi:10.3390/min12091076 | Journal (article/letter/editorial) | | pioneering work on the rocks of the Fen complex in southern Norway [6]. He defined fenites as a suite...sourced from ijoliteâmelteigite magma within the complex. The term âfeniteâ has since taken on a more general...Eudialyte, and Poikilitic complexes. The Layered complex comprises 77% of the massif volume [17], has a...contacts between the rhythms are sharp. The Eudialyte complex is located in the upper part of the Lovozero massif...18% of its volume [17]. The thickness of this complex is from 100 m (in the east) to 800 m (in the northwest) |  | | Journal (issue) | | undersea pipelines to refineries in Britain and Norway. The flare boom you can see extending from the...naturally-occurring twisted wire shapes in Kongsberg, Norway. Alexa ndrite was first discovered in the Ural...specimens to be described and analysed came from Norway. Th e ch em ica l m ake-up o f clino pyroxenes...locality) of this mineral is at Skaadoe, Brevig (Norway). Elsewhere, deposits of aegirine have been found... Ireland, the USA, Canada, Iceland, Greenland, Norway and Italy. al in alkal i-based rocks). Examples |  | | Book | | The spellings of names follow CIM; thus pyrite, baryte and sylvine replace the older pyrites, barytes...sulphides. Localities. Silver is found at Kongsberg, Norway, sometimes as fine, large speciÂŹ mens; at Freiberg...black. H 2.5; SG 8.2-8.3 Localities. Occurs with baryte and calcite with manganese in a limestone at Piute...rocks. Localities. Found in Czechoslovakia and Norway; in Bolivia; in California and Colorado in the...Localities. Good quality specimens are found at Raade, Norway, at Blue Hill, Maine and in Colorado. There are |  | Stouraiti, Christina, Angelatou, Vassiliki, Petushok, Sofia, Soukis, Konstantinos, Eliopoulos, Demetrios (2020) Effect of Mineralogy on the Beneficiation of REE from Heavy Mineral Sands: The Case of Nea Peramos, Kavala, Northern Greece. Minerals, 10 (5) 387 doi:10.3390/min10050387 | Journal (article/letter/editorial) | | Greenland, the Norra Kärr deposit in Sweden and Fen Complex in Norway (Goodenough et al. [6]) and the alkaline...Symvolon/Kavala pluton, a deformed granodioritic complex of Miocene age (Table 1) [6,9,14,24]. Despite the... ilmenite, rutile, thorite, apatite, xenotime, baryte, and sulfides were identified as minor constituents...REE minerals, including allanite and cerite from complex ores, have shown that wet high-intensity or high-gradient...I.; Dimov, D.; Klain, L. Syn-metamorphic nappe complex in the Rhodope Massif. Structure and kinematics |  | | Book | | purpose of improving communication over a very complex field. Most of the important current literature...atoms and how they combine to form spectacular and complex crystals is to miss contact with a fascinating...rare gases neon, Valencies of some simple and complex ions cations valency 5+ P 3 4 13 THE CHEMISTRY...predominantly covalent way, forming what are known as complex ions or radicals. An example of this is the tetrahedral...of 4 oxygen atoms around 1 of silicon to give a complex anion, which may be written in chemistsâ shorthand | | | Book | | with the purpose of improving field. over a very complex communication Most of the important current literature...atoms and how they combine to form spectacular and complex crystals is to miss contact with a fascinating...mapnesium oxide oxygen Valencies of some simple and complex ions cations valency 6+ P anions 4+ Si Sn...predominantly covalent way, forming what are known as complex ions or radicals. An example of this is the tetrahedral...of 4 oxygen atoms around 1 of silicon to give a complex anion, which may be written in chemistsâ shorthand |  | | Corporate Document | | model for an alkali silicate-carbonate intrusive complex (after Le Bas, 1987) 53 Figure 9-1 Geological...ring structure associated with a volcanic vent complex. 1.2 Property, Location and Ownership The Songwe...mapping and drill core indicates that the vent complex consists of a multi-phase intrusion characterized...hydrothermal / carbohydrothermal overprinting. The vent complex cuts the western end of the large Mauze nepheline...lithologies that comprise the Songwe Hill vent complex are carbonatite, fenite and breccia. The carbonatites |  | | Book | | 5 5.1 5.2 5.3 5.4 5.5 Sulfides, Arsenides and Complex Sulfides (Sulfosalts). . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . 102 Complex Metal Sulfides (Sulfosalts). . . . . . . . . ....1), orthoamphiboles (7 Sect. 11.4.3), anhydrite, baryte (7 Sect. 9.1), and aragonite (7 Sect. 8.2). z Tetragonal...metal alloys with dominantly metallic bonding. The complex interactions between the atomic nuclei and the...represented by a simple indicatrix. Therefore, a complex indicatrix is used that contains two different |
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