 | | Journal (article/letter/editorial) | | Nb2O5) and REE (up to 19.4% Y2O3 + REE2O3), with Ce the dominant REE. The mineral formula, expressed...baddeleyite, manganoan magnetite, and monazite-(La), a rare species of monazite. This suite of minerals, with...zirconolite, unit-cell parameters, crystal chemistry, monazite-(La), Laacher See eruptive center, Eifel volcanic...terres rares, TR (jusqu’à 19.4% de Y2O3 + TR2O3), le Ce surtout. Sa formule chimique, exprimée ici en termes...magnétite manganifère, et la monazite-(La), membre rare du groupe de la monazite. Cette suite de minéraux |  | Hurai, Vratislav, Huraiová, Monika, Gajdošová, Michaela, Konečný, Patrik, Slobodník, Marek, Siegfried, Pete R. (2018) Compositional variations of zirconolite from the Evate apatite deposit (Mozambique) as an indicator of magmatic-hydrothermal conditions during post-orogenic collapse of Gondwana. Mineralogy and Petrology, 112 (3) 279-296 doi:10.1007/s00710-017-0538-7 | Journal (article/letter/editorial) | | Spectrometry) dating of baddeleyite, zircon and monazite-(Ce) (Siegfried 1999; Hurai et al. 2017) revealed...Pb – Mα, PbCO3 ; Y – Lα, YPO4; La – Lα, LaPO4; Ce – Lα, CePO4; Pr – Lβ, PrPO4; Nd – Lα, NdPO4; Sm... and those with 100 nA beam current: La (10/10), Ce (10/10), Pr (20/10), Nd (10/10), Sm (10/10), Eu (30/15)... U – 225, Pb – 115, Al – 200, Y – 450, La – 680, Ce – 600, Pr – 620, Nd – 500, Sm – 630, Eu – 570, Gd...the method developed by Montel et al. (1996) for monazite. The recalculation procedure included a statistical |  | WOOLLEY, A. R., BARR, M. W. C., DIN, V. K., JONES, G. C., WALL, F., WILLIAMS, C. T. (1991) Extrusive Carbonatites from the Uyaynah Area, United Arab Emirates. Journal of Petrology, 32 (6) 1143-1167 doi:10.1093/petrology/32.6.1143 | Journal (article/letter/editorial) | | elements are held in abundant allanite-(Ce) and rare monazite-{Ce). Analyses of 26 rocks define two groups...biotite, albite, and rare allanite^Ce), and titanite. The allanite-{Ce) is usually present as small, deep...silico-carbonatites. They also contain an abundance of allanite-(Ce), which in most samples is present as numerous small...apatite, and opaques are all major phases and allanite-{Ce) is abundant. Secondary blue alkali amphibole is...calcite veinlets that may contain euhedral allanite-(Ce) prisms up to 5 mm in length. MINERALOGY Electron |  | | Journal (article/letter/editorial) | | UO2 F –O=F Total H2O Total Na Mg K Ca Mn Sr Ba La Ce Pr Nd Pb Th – 0.07 0.10 0.44 3.07 10.53 – 0.70 0...observed for rare earth elements, particularly for Ce, and for Si. From core to rim there is an increase...ThO2 UO2 F –O=F Total H2O Total Na Mg K Ca Sr Ba La Ce Pr Nd Pb Th U Total A Al Si Ti Fe Zr Nb Ta Total...Ta2O5 UO2 F –O=F Total H2O Total Na K Ca Mn Sr Ba La Ce Pr Nd U Total A Al Si Ti Fe Zr Nb Ta Total B F O...and Mitchell, R.H., Lueshite, Pyrochlore and Monazite(Ce) from ApatiteDolomite Carbonatite, Lesnaya |  | | Journal (article/letter/editorial) | | analysis was done for Ca, Na, Nb, Ta, Ti, Zr, Fe, La, Ce, Nd, Th, U, W, and F. The second set included some...performed for the following elements: Ti-Kα–Ba-Lα; Ti-Kβ–Ce-Lα; Ta-Mα–W-Mα–Sr-Lα–Si-Kα; Nb-Lα–PbMα; Ta-Mz–Mg-Kα;...Ta-Mz–Mg-Kα; Th-Mβ–U-Mα; Th-Mr–K-Kα–Sn-Lα; U-Mβ–K-Kα; Ce-Lβ–Nd-Lα; Th-Mz–Pb-Mα–Bi-Mα; Fe-Lα–F-Kα; Pb-Mβ–Bi-Mα;...pyrochlore from the San Vicente carbonatite, Cape Verde (up to 10.3 wt.%, Hodgson and Le Bas, 1992),...Mitchell, R.H., 1998. Lueshite, pyrochlore and monazite-(Ce) from apatite–dolomite carbonatite, Lesnaya |  | Doroshkevich, Anna G., Veksler, Ilya V., Klemd, Reiner, Khromova, Elena A., Izbrodin, Ivan A. (2017) Trace-element composition of minerals and rocks in the Belaya Zima carbonatite complex (Russia): Implications for the mechanisms of magma evolution and carbonatite formation. Lithos, 284. 91-108 doi:10.1016/j.lithos.2017.04.003 | Journal (article/letter/editorial) | | magmatic evolution of the complex and clarifying the CE P origin of carbonatites. We conclude that the observed...minerals. The geochemical data are used for the CE P assessment of the roles of fractional crystallization...ankerite carbonatite (Doroshkevich et al., 2016). CE P Rock textures and mineral assemblages were studied...nA and 15 kV, for REE minerals, pyrochlore and monazite 40 nA and 20 kV, for apatite 10 nA and 20 kV....out in the Geological Institute SB RAS, Ulan- 4. CE P Ude, Russia and the Zavaritsky Institute of Geology |  | | Journal (article/letter/editorial) | | calcium–tantale. La solubilité maximale du tantale dans ce système serait de l’ordre de 48% Ta2O5. A plus haute...samples from the Oka, Sokli, Kovdor, Argor and Cape Verde carbonatites (Hogarth et al. 2000). No detailed...Mitchell, R.H. (1998): Lueshite, pyrochlore and monazite-(Ce) from apatite–dolomite carbonatite, Lesnaya |  | | Journal (article/letter/editorial) | | isotopic composition. Although all of the Blue AC CE P River carbonatites were emplaced as sills prior...corresponding author: rmitchel@lakeheadu.ca AC CE P 1 D River; Canadian Cordillera. ACCEPTED MANUSCRIPT...and Simony, 1987) or oceanic islands, e.g. the Cape Verde Islands (Hoernle et al., 2002; De Ignacio et...mantle (Bell, 1998; Bell and Blenkinsop, 1987) AC CE P The Canadian Cordillera in British Columbia is...genetic relationships, if any, between these AC CE P occurrences. 2. Blue River area carbonatites |  | | Journal (article/letter/editorial) | | island regions: (1) The Canary Islands; (2) The Cape Verde Islands, and (3) The Kerguelen Islands; all of...magnetite, titanite, pyrochlore, monazite-(Ce), bastnaesite-(Ce), parisite-(Ce), and goyazite. Most of the...concentrates; (a) Mixture of monazite [(Ce,La,Nd,Th)PO4] and bastnaesite [(Ce, La)(CO3)F] forms orange-brown...into till, increasing concentrations of Ba, Nb, Th, Ce, La, Zn, Mn, and Fe 10 to 20 times, and Y, P, Cu...carbonatite-hosted mineralisation is rich in La and Ce relative to Nd (Figure 17), and grades of carbonatite-related |  | | Journal (article/letter/editorial) | | pyrochlores. The rims are enriched in Zr, Ta, Th, Ce and U, but depleted in F and Na. In pyrochlores from...western area (Catanda); (2) the central area (Monte Verde to Sulima, Baliundo, Coola, Longonjo, Tchivira Bonga);...strontianite, REE-bearing carbonates (mainly synchysite-(Ce)), Ca-REE fluorocarbonates and baryte. Most of the...whereas the A sites are strongly enriched either in Ce (up to 8.17 wt.% Ce2O3), Th (up to 8.75 wt.% ThO2)...00 0.16 102.74 2.11 100.64 A site Na Ca Mn Sr La Ce Nd Pb Th U 8.42 13.65 0.03 1.21 0.19 0.63 0.29 |  | Cabral Pinto, Marina, Silva, Maria, Neiva, Ana, Guimarães, Fernanda, Silva, Paulo (2018) Release, Migration, Sorption, and (Re)Precipitation of U during Peraluminous Granite Alteration under Oxidizing Conditions in Central Portugal. Geosciences, 8 (3) 95 doi:10.3390/geosciences8030095 | Journal (article/letter/editorial) | | thorite—and U-bearing minerals—such as xenotime, monazite, apatite, and zircon—from unaltered and altered...to the granite alteration, replaced apatite and monazite, was associated with xenotime, and filled the...contents (0.46 wt. %) in the fractured crystal zones. Monazite from the altered granite had a pervasive porosity;...apatite, and were frequently replaced by thorite. Monazite and xenotime from the altered granite and hydrothermal...solubilization of mainly uraninite, coffinite, thorite, monazite, apatite, and chlorite. Uranium from these solutions |  | | Journal (article/letter/editorial) | | minor bastnäsite that have high (La/Nd)cn and (La/Ce)cn values. The early minerals are replaced with polycrystalline...rare-earth fluorocarbonates and ancylite with minor monazite. Different secondary parageneses can be distinguished...(bastnäsite, parisite and synchysite), ancylite, monazite and cerianite; burbankite and carbocernaite are...study contain Ce as the dominant lanthanide element [i.e., bastnäsite-(Ce), monazite-(Ce), etc.], we omitted...mineral compositions on chondritenormalized (cn) (La/Ce)cn vs. (La/Nd)cn plots (Fig. 4A). Positive correlations |  | | Journal (article/letter/editorial) | | Lueshite Tausonite Niobates–Zirconates Fergusonite–(Ce) Ferrocolumbite Fersmite Zirconolite Silicates Niocalite...titanite (□,Ba,Sr)2−x(Nb, Ti)2O6(OH,F)1−y.nH2O (□ Ce,Ca)2−x(Nb,Ti)2O6(OH,F)1−y,nH2O (H2O,□, Sr)2−x(Nb...F)1−y.nH2O (□,Sr, Ba)2−x(Nb,Ti)2O6(OH,F)1−y.nH2O (□,U,Ce,Ca)2−x(Nb,Ta)2O6(OH,F)1−y.nH2O (Ca, REE, Na)(Ti...cassiterite Polycrase Stibiotantalite Wodginite-group (Ce,Ca,Fe,Th)(Ti,Nb)2O6 (Ca,Na,U)2−x(Ti,Nb,Ta)2O6(OH...(Tetragonal) (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 YNbO4 (Ta,Nb,Sn,Fe,MnTi)4O8 (Na,Ca)2Ta2O6(O,OH,F) (Ce,Ca,Th)(Nb,Ti)2(O |  | | Journal (article/letter/editorial) | | sarah.bodeving@mail.mcgill.ca, telephone number AC CE PT +1 514 222 5273 (S. Bodeving). ACCEPTED MANUSCRIPT...negative Ta, Zr and Hf anomalies on spidergrams, CE whereas the silicate rocks display positive anomalies... 1998a). A combination of the two has also been CE proposed, in which extreme fractionation of the...Complex (HMC) in the Paleoproterozoic Welwitschia CE inlier, which, together with the Kamenjab and Braklaagte...lithological units and sampling outcrops for subsequent CE petrographic study. Drill core made available by |  | | Book (edition) | | Prague Printedin Czech Republicby Finidr.u.o .. Ce,ky Te~in 14/02/03/0 I All rights reserved•• ·o pan...dominant rareearth element (REE). e.g. monazite-(Ce), monazite(Nd), etc. In a few cases a similar procedure...= 99°37' Z = 4. Stable by <173°C, Abenakiite-(Ce) a26(Ce,Nd)c,[Ol(C?,,)61all argentite specimens are actually...tennination, also radiating fibrous aggregates ore ce yellow-!!reen underSWand LWUV light. Adamiteformedby...Cornwall, England. MA42, 1, 23, 1991. Aeschynite-(Ce) (Ce,Ca,Fe,Th)(Ti,Nb)i(O,OH) 6 (4.D, aeschynite group) |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Kressall, Ryan D., Crozier, Jeremy, Pisiak, Laura K., Sidhu, Ravinder, Yang, Panseok (2015) Carbonatite-hosted niobium deposit at Aley, northern British Columbia (Canada): Mineralogy, geochemistry and petrogenesis. Ore Geology Reviews, 64. 642-666 doi:10.1016/j.oregeorev.2014.04.020 | Journal (article/letter/editorial) | | secondary pyrochlore (monazite, apatite) Primary and secondary pyrochlore (apatite, monazite, vermiculite) ...(siderite carbonatites) Nb-rich rutile and brookitei (monazite, barite, hollandite) 2897.9 Mt at 2.81% Nb2O5...laterites are typically represented by secondary monazite (LREEPO4; LREE = La…Eu) with lesser amounts of...dolomite, quartz, chlorite (Fig. 3g), muscovite, monazite, REE fluorocarbonates and, less commonly, rutile...aegirine, quartz, ilmenite, zircon, pyrrhotite, monazite, baddeleyite, thorianite, barite and rutile. Fluorite |  | | Journal (article/letter/editorial) | | (*correspondence: xszerlit@gmail.com) Primary monazite-(Ce), which is one of the most common accesory mineral...pseudomorphs after primary monazite-(Ce) are present. Instead of monazite-(Ce) in grusified granites secondary...secondary rhabdophane-(Ce), florencite-(Ce), cerianite-(Ce), rhabdophane-(La) and rhabdophane-(Nd) are...µm) automorphic crystals of rhabdophane(Ce) and florencite-(Ce) occur inside sericitised plagioclases...along clevage planes of primary feldspar. Cerianite-(Ce) occurs as thin veins or as clusters of crystals |  | | Book | | s . . . . . . . . . . . . . . . . . . . . . . Monazite, Brockite and Auerlite . . . . . . . . . . . ...granites, according to a U–Pb age determination on monazite from a minor intrusion in the southern part of...Halides Fluorite Halite Sylvite Oxides Aeschynite-(Ce) Anatase Brookite Knopite Perovskite Dysanalyte Rutile...TiO2 ðCa; Ce; NaÞðTi; FeÞO3 CaTiO3 ðCa; Ce; Y; NaÞðTi; Nb; FeÞO3 TiO2 Fe2 þ Nb2 O6 ðCa; Ce; NaÞðNb; Ta;...Ti)2O3 ZrO2 Ca2 Zr5 Ti2 O16 ðZr; Ti; CaÞO2x ðCa; Ce; Y; ThÞZrðTi; Nb; Ta; FeÞ2 O7 MgðOHÞ2 FeOðOHÞ CaðOHÞ2 |  | | Journal (volume) | | J.3 Centre for Minerals Research, University of Cape Town, South Africa (*megan.becker@uct.ac.z) 2 Dept...admixtures in fulgurites elements-hydrolyzates La, Ce, Nd, Zr and also Br are slightly accumulated. Ba...analysis showed that figures of cerium anomaly A(Ce)=CeN/CeN* form sequence: 1.56 (initial rocks) Ö 0... based on 41516182 sheets (A = Na, K, H3O; REE = Ce, La, Eu), and four members of the rhodesite mero-plesiotype...sandy loam Sandy silt (av. of all samples) 0 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Commission on New Minerals and Mineral Names (CNMMN) ce; Proposals for a new mineral should include (1) the...discovered: for example, tritomite-(Ce) and tritomite-(Y) are end members [Ce+Y] in the tritomite series [AM...204-206. Included here is a statement of any observe ce. occurren of ing the twin law and its frequency ...Rio Grande Norte Rio Grande Sul AG AL AP AM BA CE PA Ee PE PI RJ RN RS Rondonia RO Roraima Santa...the United States, placer and deposits occur at Cape Blanco, Curry Co., OR, at several localities in |  | | Book (edition) | | wih fH e4agi"” ef) rk bias iycraton as nam Van ce Y ear ieaad Wi 56 ett f tT 7 Pretace The amount... Mag., 35:72-83 (1965). AESCHYNITE (Eschynite) (Ce,Ca,Fe,Th)(Ti, Nb).(O,OH)., CRYSTAL SYSTEM: Orthorhombic...7th ed., v. I, p. 793-797, New AESCHYNITE-(Nd) (Nd,Ce,Ca,Th)(Ti, Nb)2(O,OH), CRYSTAL SYSTEM: Orthorhombic...6/m SPACE GROUP: P6;/m bpp LATTICE CONSTANTS: fhe ce =" 1.04 3 STRONGEST DIFFRACTION LINES: 3.06 (100)...Am. Min., 53:733741 (1968). ALLANITE (Orthite) (Ce,Ca,Fe*).(Al, Fe **)3Sis30)2(OH) Epidote Group CRYSTAL | | | Book (edition) | | Mag., 35:72-83 (1965). AESCHYNITE (Eschynite) (Ce,Ca, Fe , Th)(Ti, Nb h(O ,OH)6 CRYSTAL SYSTEM: Orthorhombic...793-797, New York, Wiley, 1944. AESCHYNITE-(Nd) (Nd, Ce,Ca, Th)(Ti, Nb )2(0 ,0H)6 CRYSTAL SYSTEM: Orthorhombic...rizona: and a1 Tsumeb. :,..;aniibia. SELECTED REFERE, CE: \\'in.:hell 3nd \\'in.:hell. Ele111enrs o;· Optical... ... - e.,.,..>,, 'h.-::..ra, _._ \,.. REFERE):CE,· Dee:. Hv'•' ~e. ---•'-• .... .me ..\. mixture...CR ·ysT..\.l S1.STE~ {: T riclinic CL.-\SS: 1 SP.-\CE GROLTP: Cl Z:-t. L--\TTICE COl\ST.-\0sTTS: High ternp |  | | Book | | (atoms/® Si) (atoms/10° Si) 4.8 4.36 2270 p.p.b. 58 Ce 1.2 1.16 619 p.p.b. 0.448 0.37 0.174 0.18...mantle 3 iG 6 3 a 2p 0.17 La 269 295 122 @ 5.25 0.39 Ce 49 75 140 Ss ad — Nd 6.4 1 14.43 Sc 0.38 0.26 Sm...o00r ee SZ S866 SUE €0 LL 1s €0 r0 ve Te 00 00 CE 0001 80 re €9 807 ad Ty 10 eT 08 60 70 9°SE 99001...1970: 224-305); whereas the igneous rocks of the Cape Verde archipelago in the North Atlantic, off the coast...-m. se. Cr Co Ni Cu Zn Ga Rb Sr ry) Zr Cs Nb Ba La Ce Sm Eu Tb Yb Lu Hf Pb Th A(%) 1(%) 2(%) 3(%) |  | | Book (edition) | | THE SEDIMENTARY THE ROCKS LATE Hopi iee Ac CE O.B.E., PH.D., M.I.C.E. Past-President Inst. Mining...Pleistocene Boulder Clay (near Leeds) B. Dwyka Tillite (Cape Colony) . Edgewise Conglomerate (Sutherlandshire)...cleavage fragments . Kyanite : water-worn grains Monazite : water-worn grains . Utiler: knee-shaped twin...lying south-west of the African coast between Cape Verde and the Canary Islands receives a considerable...DIMENSIONAL 1, 2. Crook 1913 CLASSIFICATION 3. ce Hatch Boswell Trask | 1918 1932 41 2 OF FRAGMENTAL |  | | Book (edition) | | Areas : PAGE 3 7 a : : = : . =) a 39 22) ce 23 2 24 Epicontinental Seas and Peripheral Areas...Pleistocene Boulder Clay (near Leeds) B. Dwyka Tillite (Cape Colony) ; 10. Edgewise Conglomerate (Sutherlandshire)...Kyanite : water-worn grains . Red 299 Sandeenne Monazite : water-worn grains . . Rutile: knee- “Shaped...lying south-west of the African coast between Cape Verde and the Canary Islands receives a considerable...of the Langebergen and other mountain ranges of Cape Colony, and in the gorges of the rivers that cut |
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