| | Journal (article/letter/editorial) | 259±280 Synchysite-(Y)±synchysite-(Ce) solid solutions from Markersbach, Erzgebirge, Germany: REE and... Telegrafenberg, Potsdam, Federal Republic of Germany With 6 Figures Received May 8, 2000; revised version...REE-ÂŻuorocarbonate synchysite, which forms anhedral grains hosted in albite, was identiÂźed in the Markersbach pluton...pluton (Erzgebirge, Germany) composed of F-rich, highly fractionated and autometasomatically altered granites...complete solid-solution series between synchysite-(Y) and synchysite-(Ce). The rareearth elements likely were | | | Journal (article/letter/editorial) | Earth Sciences, P.O. Box 601553, D-14415 Potsdam, Germany Received 4 January 2005; accepted 16 August 2005...allanite and thorite generally are absent, monazite-(Ce) accounts for almost 60â90% of the Th and light rare...late Variscan granites from the Erzgebirge of Germany and Pan-African granites from Jordan. 2. Background...Li (ppm) Sc Co Ni Zn Ga Rb Sr Y Zr Nb Sn Cs Ba La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Pb Th U...NBZ = Niederbobritzsch, KIB = Kirchberg, MAB = Markersbach, ATB = Altenberg, ZNW = Zinnwald, HUM = Humrat | | | Journal (article/letter/editorial) | CERITE-(Ce) AND THORIAN SYNCHYSITE-(Ce) FROM THE NIEDERBOBRITZSCH GRANITE, ERZGEBIRGE, GERMANY: IMPLICATIONS...GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany ABSTRACT A detailed survey of accessory minerals...biotite granites from Niederbobritzsch, Erzgebirge, Germany, reveals the presence of various, late magmatic...minerals, including cerite-(Ce), thorian synchysite-(Ce), synchysite-(Ce), and an unidentified Th-rich...Th-rich REE fluorocarbonate(?). Cerite-(Ce) is a REE silicate that, to date, has been found in only half a | | Ruberti, E., Enrich, G. E.R., Gomes, C. B., Comin-Chiaramonti, P. (2008) HYDROTHERMAL REE FLUOROCARBONATE MINERALIZATION AT BARRA DO ITAPIRAPUA, A MULTIPLE STOCKWORK CARBONATITE, SOUTHERN BRAZIL. The Canadian Mineralogist, 46 (4) 901-914 doi:10.3749/canmin.46.4.901 | Journal (article/letter/editorial) | Th-rich, were deposited. Syntaxy between synchysite-(Ce) and parisite-(Ce) is very common owing to the similarity...However, bastnĂ€site-(Ce) occurs as individual crystals, overgrown by the synchysite and parisite polycrystals...Keywords: REE fluorocarbonate, synchysite-(Ce), parisite-(Ce), bastnĂ€site-(Ce), hydrothermal conditions,...de lâArche de Ponta Grossa, dâĂąge cretacĂ© prĂ©coce. Ce complexe est fait dâun stockwerk de filons et de...dĂ©posĂ©s. Une relation de syntaxie entre synchysite-(Ce) et parisite-(Ce) est trĂšs commune Ă cause de la ressemblance | | | Journal (article/letter/editorial) | 3749/canmin.1400012 AN UNUSUAL OCCURRENCE OF SYNCHYSITE-(Ce) IN AMYGDULES FROM THE ESTEREL VOLCANIC ROCKS...amygdules appear to be particularly enriched in synchysite-(Ce), developed as fibrous aggregates together...crystallize from the hydrothermal solution was synchysite-(Ce), whose REE pattern has strong similarities...host basalt. Keywords: rare-earth elements, synchysite-(Ce), basalt, alteration, amygdule, Esterel, France...the first time, to describe and characterize synchysite-(Ce) in this uncommon environment. GEOLOGICAL | | | Journal (article/letter/editorial) | Sn-mineralized granitesâexamples from the Erzgebirge, Germany Rolf L. Romer & Rainer Thomas & Holly J. Stein...GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany e-mail: romer@gfz-potsdam.de H. J. Stein AIRIE...granite-related tin mineralization in the Erzgebirge, Saxony (Germany). By analyzing UâTh-rich inclusions by isotope...Eibenstock, GOT Gottesberg, KIB Kirchberg, MAB Markersbach, NEJ Nejdek, NBZ Niederbobritzsch, POB Pobershau...the Ehrenfriedersdorf tin district), Erzgebirge, Germany Samplea Content (ng) Pb compositionb 206 207 | | | Journal (article/letter/editorial) | zircon, thorite, xenotime, monazite, bastnâŹasite, synchysite, REE oxyfluorides and hydroxyfluorides. Zircon...fluorocarbonates are represented by bastnâŹasite and synchysite. BastnâŹasite is abundant in the ZG. Its chondrite-normalized...anomaly and downward kinks at La and Nd. Synchysite-(Ce) and synchysite-(Y) are particularly well developed...negative Eu anomaly (synchysite-(Ce)), or a weak positive Eu anomaly (synchysite-(Y)). The distribution...during stage (5) and led to the formation of synchysite, and finally to the extensive precipitation of | | Parnell, John, Akinsanpe, Temitope O., Still, John W., Schito, Andrea, Bowden, Stephen A., Muirhead, David K., Armstrong, Joseph G. T. (2023) Low-Temperature Fluorocarbonate Mineralization in Lower Devonian Rhynie Chert, UK. Minerals, 13 (5) 595 doi:10.3390/min13050595 | Journal (article/letter/editorial) | most of the fluorocarbonates is referable to synchysite. Mineralization occurs at the surface, and the...sedimentary environment. Keywords: rare earth elements; synchysite; Rhynie chert; Scotland; hot spring Citation:...with mean compositions for phases interpreted as synchysite and parisite in published case studies (Table...O3 Y2 O3 CO2 F Total âOâĄF TOTAL Elemental % Ca La Ce Pr Nd Sm Gd Y REE total C F F/Ca REE/Ca Site 11-1...0.01 0.00 1.00 2.15 0.56 0.61 1.09 Identity synchysite 0.79 0.32 0.58 0.05 0.21 0.02 0.00 0.00 1.18 | | Middleton, Alexander W., Förster, Hans-JĂŒrgen, Uysal, I. Tonguç, Golding, Suzanne D., Rhede, Dieter (2013) Accessory phases from the Soultz monzogranite, Soultz-sous-ForĂȘts, France: Implications for titanite destabilisation and differential REE, Y and Th mobility in hydrothermal systems. Chemical Geology, 335. 105-117 doi:10.1016/j.chemgeo.2012.10.047 | Journal (article/letter/editorial) | GeoForschungsZentrum GFZ, Telegrafenberg, D-14473 Potsdam, FR, Germany School of Earth Science, The University of Queensland...accessory minerals include ïŹuorapatite, allanite-(Ce) and Th-rich titanite. Primary titanite has been...+ quartz + synchysite-(Ce) ± bastnaesite-(Ce) or anatase + calcite + quartz + monazite-(Ce) + xenotime-(Y)...middle REE, Y and Th concentrations depleted in synchysite-(Ce) relative to primary titanite. Such depletions...seen in phosphate-rich samples containing monazite-(Ce) and xenotime-(Y). Variability in elemental concentrations | | | Journal (article/letter/editorial) | are concentrated in the REE-fluorcarbonate synchysite-(Ce). Keywords: uranium mineralization; aceite;...aceite; coffinite; uraninite; thorite; synchysite; mineralogy; geochemistry; Bohemian Massif; Central European...and grains. The elemental abundances of Al, As, Ca, Ce, Cu, Cr, Dy, Er, F, Fe,Brno Gd, Ltd.La, (Brno, Czech...aggregates grains. abundances Al, the As, background Ca, Ce, Cu, Cr, Dy, Er, F,The Fe,raw Gd, elements, the times...fine-grained aggregates of the REE-fluorcarbonate synchysite-(Ce), which usually contain inclusions of very | | | Journal (article/letter/editorial) | Abstract Minerals of crandallite group and synchysite were found on base-metal ore veins at historical...2 - 66.5 and 0.0 - 0.2 mol. %, respectively. Synchysite was found in the same sample and also in a sample...galena). Synchysite formed isometric or irregular grains, †70 ÎŒm in size. The presence of synchysite-(Y)...synchysite-(Y) and synchysite-(Ce) was revealed from available microprobe compositional data. Both phosphates and carbonates...JesenĂk, hydrothermal mineralization, REE minerals, synchysite, minerals of crandallite group ObdrĆŸeno: 7. 3 | | Mondillo, N., Boni, M., Balassone, G., Spoleto, S., Stellato, F., Marino, A., Santoro, L., Spratt, J. (2016) Rare earth elements (REE)âMinerals in the Silius fluorite vein system (Sardinia, Italy) Ore Geology Reviews, 74. 211-224 doi:10.1016/j.oregeorev.2015.11.016 | Journal (article/letter/editorial) | Viale Merello 14, 09023, Cagliari Italy AC 3 CE P 1 D MA Marino A.3, Santoro L.2, Spratt J.2...bearing minerals synchysite-(Ce) and xenotime-(Y). The chemical composition of synchysite-(Ce) has been obtained...dispersive spectrometry (WDS). The average synchysite-(Ce) built on the basis of (CO3)2F and 5...other gangue phases, it is likely that synchysite-(Ce) and CE P xenotime-(Y) formed at the same P-T-X...minerals of the Silius fluorite mineralization. Synchysite-(Ce) and xenotime-(Y) at Silius could be related | | | Journal (article/letter/editorial) | evolved compositions (Zr and, to a lesser extent, Ce, Fig. 3). The generally positive evolution trends...concentrations of HFSE and REE in felsic compositions (e.g. Ce †200 ppm, Zr †650â700 ppm and Th †40 ppm at SiO2...chlorite, ±titanite, ±REE-ïŹuoro-carbonate (synchysite-(Ce)?, Ca(Ce,La)F(CO3)2), ±baryte (Fig. 4A, B). Cathodoluminescence...negative character), zircon, REE-F-carbonate (synchysite-(Ce)?), F-apatite, quartz and chlorite-altered...Zn Ga As Rb Sr Y Zr Nb Mo Ag Cd Sn Sb Te Cs Ba La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta Tl Pb Bi | | | Journal (article/letter/editorial) | bastnĂ€site samples, two parisite samples, and one synchysite sample from the visible into the short-wave infrared...carbonate radical differ between bastnĂ€site, synchysite, and parisite. Exploitable spectral differences...band at 2243 nm that separates bastnĂ€site from synchysite and parisite. Similarly, for bastnĂ€site a dominantly...absorption band located is at 1968 nm, while in synchysite and parisite it occurs at 1961 nm. Keywords:...elements, hyperspectral, bastnĂ€site, parisite, synchysite Introduction The mineralogy of rare earth element | | Alles, Jonas, Ploch, Alexander-Maria, Schirmer, Thomas, Nolte, Nicole, Liessmann, Wilfried, Lehmann, Bernd (2019) Rare-earth-element enrichment in post-Variscan polymetallic vein systems of the Harz Mountains, Germany. Mineralium Deposita, 54 (2) 307-328 doi:10.1007/s00126-018-0847-8 | Journal (article/letter/editorial) | polymetallic vein systems of the Harz Mountains, Germany Jonas Alles 1 & Alexander-Maria Ploch 1 & Thomas...Accepted: 5 October 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Carbonate...to the occurrence of abundant micrometer-sized synchysite inclusions in calcite, identified via Raman spectroscopy...PAAS-normalized REE patterns with a Eu peak but without Ce or Y anomalies and with a steeply dipping HREE pattern...LA-ICPMS) identifies these patterns as dominated by synchysite-(CeâNd) with strong Eu enrichment in the weight | | | Journal (article/letter/editorial) | 0046 Ă wt. % SiO2 T For low Ga/Al and (Zr + Nb + Ce + Y): FeO /MgO > 16 A-type granites 4 < FeOT/MgO...A-type granite Trace-element discrimination Zr + Nb + Ce + Y > 350 ppm Y/Nb < 1.2 A1 subtype, intra-plate...gneisses, Galicia, Spain Rheinisches Schiefergebirge, Germany British Tertiary Igneous Province 440â425 Ma 280â235...sedimentary cover is developed in Belgium and Germany. The Proterozoic continental basement is exposed...their exact configuration remains unclear. In Germany, Eastern Avalonia consists of inliers covered by | | Uher, Pavel, Ondrejka, Martin, BaÄĂk, Peter, Broska, Igor, KoneÄnĂœ, Patrik (2015) Britholite, monazite, REE carbonates, and calcite: Products of hydrothermal alteration of allanite and apatite in A-type granite from StupnĂ©, Western Carpathians, Slovakia. Lithos, 236. 212-225 doi:10.1016/j.lithos.2015.09.005 | Journal (article/letter/editorial) | primary magmatic allanite-(Ce) to ferriallanite-(Ce) and ïŹuorapatite. The Y, Ce-rich ïŹuorapatite was replaced...britholites. Moreover, the alteration of (ferri)allanite-(Ce) resulted to complex pseudomorphs and overgrowths...phases: [synchysite-(Ce) to its hydroxyl-dominant analogue âhydroxylsynchysite-(Ce)â, bastnĂ€site-(Ce)] and...and calcite, rarely monazite-(Ce), epidote, clinochlore, titanite, TiO2 phase, and pseudorutile. In some...some cases, secondary carbonate minerals (mainly synchysite and calcite) replaced a substantial part of former | | | Journal (article/letter/editorial) | minerals Article Synchysite-(Ce) from Cinquevalli (Trento, Italy): Stacking Disorder and the Polytypism...January 2020 Abstract: Synchysite-(Ce) at Cinquevalli occurs as fine needles intergrown...oxidized chalcopyrite as major constituents. Synchysite-(Ce) [Ca1.00 (Ce0.43 La0.26 Nd0.17 Y0.07 Pr0.04...(OH)0.42 )], shows an overgrowth rim of bastnĂ€site-(Ce) [(Ce0.34 La0.25 Nd0.17 Pb0.07 C a0.06 Y0.06 Pr0...O3 (F0.75 (OH)0.25 )]. Unit cell refinement of synchysite (C2/c) and bastnĂ€site (P62c) led to a = 12.272(4) | | | Journal (article/letter/editorial) | Institute of Geosciences, University of TĂŒbingen, Germany. The operating voltage was 15 kV and a beam diameter...my post-doctoral visit at TĂŒbingen University, Germany. I am grateful to W. Frisch for his support with...2000. Cerite-(Ce) and thorian synchysite-(Ce) from Niederbobritzsch (Erzgebirge, Germany): implications..., 2001. Synchysite-(Y)âsynchysite-(Ce) solid solutions from Markersbach, Erzgebirge, Germany: REE and | | Förster, H.-J., Gottesmann, B., Tischendorf, G., Siebel, W., Rhede, D., Seltmann, R., Wasternack, J. (2007) Permo-Carboniferous subvolcanic rhyolitic dikes in the western Erzgebirge/Vogtland, Germany: a record of source heterogeneity of post-collisional felsic magmatism. Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen, 183 (2) 123-147 doi:10.1127/0077-7757/2007/0064 | Journal (article/letter/editorial) | rhyolitic dikes in the western Erzgebirge/Vogtland, Germany: a record of source heterogeneity of post-collisional...Abstract: In the western Erzgebirge/Vogtland of Germany, a suite of dikes of compositionally and texturally...alteration, thorite, P-rich zircon, rhabdophane-(Ce), KâAr age, Nd isotopes, Variscan orogeny, Erzgebirge...Variscan consolidation in the Erzgebirge/KruĆĄnĂ© hory (Germany/Czech Republic), though a great portion of the...granites and rhyolites in the Erzgebirge/Vogtland of Germany. The right inset map shows the sample locations | | KĆĂbek, Bohdan, KnĂ©sl, Ilja, DobeĆĄ, Petr, VeselovskĂœ, FrantiĆĄek, PoĆĂĄdek, PĆemysl, Ć koda, Radek, ÄopjakovĂĄ, Renata, Leichmann, JaromĂr, KoĆĄek, Filip (2022) The Origin of Synchysite-(Ce) and Sources of Rare Earth Elements in the RoĆŸnĂĄ Uranium Deposit, Czech Republic. Minerals, 12 (6) 690 doi:10.3390/min12060690 | Journal (article/letter/editorial) | minerals Article The Origin of Synchysite-(Ce) and Sources of Rare Earth Elements in the RoĆŸnĂĄ Uranium...R.; Leichmann, J.; KoĆĄek, F. The Origin of Synchysite(Ce) and Sources of Rare Earth Elements in the RoĆŸnĂĄ...Correspondence: bohdan.kribek@geology.cz Abstract: Synchysite was identified in the RoĆŸnĂĄ uranium deposit in...the development of the hydrothermal system. The synchysite forms needles or lamellae, which are almost exclusively...ribbons of fibrous SiO2 grains, indicate that the synchysite crystallized in a silica gel. Its formation may | | | Journal (article/letter/editorial) | Division 4, Telegrafenberg, Dâ14473, Potsdam, Germany Abstract The structure and composition of metamict...et dâoxyde de zirconium dans un matrice amorphe; ce domaine est enrichi en Ă©lĂ©ments traces. Le remplacement...et appauvri en Ă©lĂ©ments traces mais enrichi en Hf. Ce domaine est dĂ©veloppĂ© le long de fractures, avec...des petites quantitĂ©s de thorite et de thorianite. Ce matĂ©riau est anhydre et dĂ©pourvu dâinclusions et...rare-earth-bearing carbonate hydroxylbastnĂ€site-(Ce) occur on the walls of quartzlined cavities. the | | Breiter, Karel, Förster, Hans-JĂŒrgen, Ć koda, Radek (2006) Extreme P-, Bi-, Nb-, Sc-, U- and F-rich zircon from fractionated perphosphorous granites: The peraluminous PodlesĂ granite system, Czech Republic. Lithos, 88 (1) 15-34 doi:10.1016/j.lithos.2005.08.011 | Journal (article/letter/editorial) | of Potsdam, P.O. Box 601553, D-14415 Potsdam, Germany c Institute of Earth Sciences, Masaryk University...90.84 90.78 P Nb Ta Si Zr Hf Th U Ti Al Sc Y Bi Ce Nd Sm Gd Dy Yb Ca Fe Mn Pb F 0.004 0.230 0.392...granite in southern Bohemia. Zircon from the Markersbach granite in the eastern Erzgebirge contain up...Erzgebirgeâ Fichtelgebirge region: Part I. The monaziteâ(Ce)âbrabantite solid solution series. Am. Mineral. 83..., 2000. Synchysiteâ(Y) synchysiteâ(Ce) solid solutions from Markersbach, Erzgebirge, Germany: REE and | | | Journal (article/letter/editorial) | zircon, Nb-Ta-Ti oxides, xenotime-(Y), monazite-(Ce), uraninite and coffinite are common accessory minerals...Nb-Ta-Ti-oxides, cassiterite, zircon, Th-rich monazite-(Ce), xenotime-(Y), bastnĂ€site, REE oxyfluorides and... xenotime-(Y), thorite, synchysite-(Y), synchysite-(Ce), Thpoor monazite-(Ce) and rutile are present...Kempe 1994) N Sadisdorf Sachsenhöhe Altenberg Germany CĂnovec Krupka Orthogneisses Rhyolites Composition...Andradite Mg Mn P Si As Bi Hf Nb Pb Sc Th U W Zr La Ce Pr Nd Kα Kα Kα Kα Lα Mα Mα Lα Mα Kα Mα MÎČ Lα Lα | | BiĆĄevac, Vanja, Krenn, Erwin, Balen, DraĆŸen, Finger, Fritz, Balogh, Kadosa (2011) Petrographic, geochemical and geochronological investigation on granitic pebbles from Permotriassic metasediments of the Tisia terrain (eastern Papuk, Croatia) Mineralogy and Petrology, 102 (1) 163-180 doi:10.1007/s00710-011-0175-5 | Journal (article/letter/editorial) | Si 0.013 0.031 P 0.992 0.980 Ca 0.077 0.013 Y La Ce Pr Nd Sm Gd Dy Er Th U Pb Tetr. A[9] 0.016 0.106...Sericite (vol%) 2 0.5 0.1 1 0.1 0.1 0.1 V W Y Zn Zr La Ce Sample Table 5 (continued) 0.93 2.69 29 0.81...monazite(Ce)- brabantite solid solution series. Am Mineral 83:259â273 Förster HJ (2001) Synchysite-(Y) -...- synchysite-(Ce) solid solutions from Markersbach, Erzgebirge, Germany: REE and Th mobility during high-T...fertility of the Fichtelgebirge granites (NE Bavaria, Germany). N Jahrb Mineral Abh 185:161â182 FĂŒlöp J, Brezsnyansky |
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