 | | Journal (article/letter/editorial) | | Mineralization in Peralkaline Granites from the Amis Complex, Brandberg (Namibia): Evidence for Magmatic Pre-enrichment...Germany Abstract The Amis Complex is a late intrusive phase associated with the Brandberg anorogenic granite...capable of extracting HFSE from the melt, such as monazite, allanite, titanite, or zircon, is inhibited in...of the Amis Complex, Namibia, which is a satellite intrusion of the Early Cretaceous Brandberg anorogenic...of postmagmatic element redistribution in the Amis Complex. Mass-balance calculations that were performed |  | | Book | | AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree . Khomas Highland...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...The Central Escarpment- The Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275 |  | Bernard, Cyrielle, Estrade, Guillaume, Salvi, Stefano, BĂ©ziat, Didier, Smith, Martin (2020) Alkali pyroxenes and amphiboles: a window on rare earth elements and other high field strength elements behavior through the magmatic-hydrothermal transition of peralkaline granitic systems. Contributions to Mineralogy and Petrology, 175 (9). doi:10.1007/s00410-020-01723-y | Journal (article/letter/editorial) | | as bastnĂ€site-(Ce), parisite-(Ce) and synchysite-(Ce), and phosphate such as monazite-(Ce). Ionadsorption...are hosted mainly in monazite-(Ce), xenotime-(Y), fergusonite-(Y), loparite-(Ce) and eudialyte-group...and Manongarivo (Donnot 1963) in Madagascar, Amis in Namibia (Schmitt et al. 2002), Evisa in Corsica (Bonin...of in-depth studies, such as the Strange Lake complex which was first studied in the late 1980âs (e.g...Ma Evisa Post-orogenic extension or rift 290 Ma Amis Rift 130 Ma Ambohimirahavavy Rift- 25 Ma Manongarivo |  | Xu, Cheng, Kynicky, Jindrich, Chakhmouradian, Anton R., Campbell, Ian H., Allen, Charlotte M. (2010) Trace-element modeling of the magmatic evolution of rare-earth-rich carbonatite from the Miaoya deposit, Central China. Lithos, 118 (1) 145-155 doi:10.1016/j.lithos.2010.04.003 | Journal (article/letter/editorial) | | contains abundant REE-rich minerals, including monazite and ïŹuorapatite, both precipitated earlier than...framework and tectonic evolution of the Qinling region are given in Meng and Zhang (2000), Ratschbacher...spot; Mnz, monazite-(Ce); Ap, ïŹuorapatite; Rt, rutile; Bt, bastnĂ€site-(Ce); Sy, synchysite-(Ce). Note alteration...development of monazite and ïŹuorapatite prior to primary calcite (D, E), crystallization of bastnĂ€site-(Ce) after...and syntaxial intergrowths of bastnĂ€site-(Ce) and synchysite-(Ce) (G, H). 148 C. Xu et al. / Lithos 118 |  | | Journal (article/letter/editorial) | | model from which values of the ideal partition AC CE PT coefficient (D0), the ideal radius (r0) and...peralkaline granitic pegmatite from the Amis complex (Namibia) for which data on the composition of the...of magma composition using this model remains a CE PT challenge. The reason for this is that it is...granites, the primary REE-bearing minerals are monazite-(Ce) and pyrochlore-group minerals, which generally...Vasyukova and Williams-Jones (2014, 2016) to AC CE PT represent an immiscible fluoride melt. The primary |  | | Journal (article/letter/editorial) | | The primary HFSE minerals are zircon, monazite-(Ce), gagarinite-(Ce) and the pyrochlore group minerals....alkali feldspar and HFSE-rich phases (zircon, monazite-(Ce), pyrochlore group). An alkali feldspar-rich... Upon emplacement, arfvedsonite (and gagarinite-(Ce)) crystals segregated as cumulates in response to...5 wt% REE) in the peralkaline Amis granite Complex, Brandberg, Namibia (Schmitt et al., 2002). Although...syenite complex, Scotland, magmatic concentration of the REE in the form of early allanite-(Ce) was followed |  | Yang, Wu-Bin, Niu, He-Cai, Li, Ning-Bo, Hollings, Pete, Zurevinski, Shannon, Xing, Chang-Ming (2020) Enrichment of REE and HFSE during the magmatic-hydrothermal evolution of the Baerzhe alkaline granite, NE China: Implications for rare metal mineralization. Lithos, 358. 105411 doi:10.1016/j.lithos.2020.105411 | Journal (article/letter/editorial) | | hydrothermal minerals, such as zircon, hingganite-(Y), monazite-(Ce), polycrase, pyrochlore, fergusonite and columbite...and reprecipitation, and the replacement of monazite-(Ce) and e- polycrase-(Y) by hingganite-(Y). Compositions...replacement, such as the replacing of Jo u monazite-(Ce) and polycrase by hingganite-(Y). It is suggested...arfvedsonite, aegirine, zircon, hingganite-(Y) and monazite-(Ce), in the Baerzhe pluton, utilized to decipher...The Late Mesozoic Great Xingâan Range covers an area of ca. 100,000 km2 (Ying et al., 2010), and is mainly |  | Huang, He, Wang, Tao, Zhang, Zhaochong, Li, Chao, Qin, Qie (2018) Highly differentiated fluorine-rich, alkaline granitic magma linked to rare metal mineralization: A case study from the Boziguoâer rare metal granitic pluton in South Tianshan Terrane, Xinjiang, NW China. Ore Geology Reviews, 96. 146-163 doi:10.1016/j.oregeorev.2018.04.021 | Journal (article/letter/editorial) | | accessory minerals at least including zircon, monazite, pyrochlore, Fe-Ti oxides, xenotime, bastnasite...HREE) and monazite (LREEs) grains. Mineral chemistry suggests that the pyrochlore and monazite are of primary...crystallization of the LREE-rich minerals (e.g., monazite) or an early aqueous fluid during the transition...minerals including pyrochlore, zircon, thorite, monazite, xenotime and bastnasite, 2) there is also no...biotite, amphibole, alkali feldspar, pyrochlore, monazite and zircon grains). Based on these data and observations |  | Li, Ao, Yang, Wu-Bin, Niu, He-Cai, Shan, Qiang, Jia, Chun (2021) Mineralogy and UâPb geochronology of REE fluorocarbonates from the Gansha Obo REE deposit, northwest China. Ore Geology Reviews, 136. 104266pp. doi:10.1016/j.oregeorev.2021.104266 | Journal (article/letter/editorial) | | Cretaceous Gansha Obo alkalin eâcarbonatite igneous complex. In this study, we present a detailed investigation...utilized for UâPb dating, such as bastnaÌsite, monazite, allanite, and xenotime (e.g., Cox et al., 2003;...dating of such minerals can produce variable and complex results that require careful interpretation. REE...deposit hosted in an alkalineâcarbonatite igneous complex in northwestern China, with REE2O3 reserves of...of Paleozoic age are widely distrib uted in this area (Fig. 1B) and can be divided into two series (Huang |  | Wang, Lize, Xu, Cheng, Zhao, Zheng, Song, Wenlei, Kynicky, Jindrich (2015) Petrological and geochemical characteristics of Zhaibei granites in Nanling region, Southeast China: Implications for REE mineralization. Ore Geology Reviews, 64. 569-582 doi:10.1016/j.oregeorev.2014.04.004 | Journal (article/letter/editorial) | | characteristics of Zhaibei granites in Nanling region, Southeast China: Implications for REE mineralization...weathering proïŹle of granitoid rocks from Nanling region of Southeast China is an important REE resource...geochemical features of high K2O + Na2O and Zr + Nb + Ce + Y contents and Ga/Al ratio to A-type granite. Based...Note that most Jurassic granitoids in the Nanling region contain no REE minerals and cannot produce REE...relatively abundant in the Earth's crust (e.g. 60 ppm Ce in average crust, Wedepoh, 1995), but the discovery |  | Zozulya, Dmitry, Lyalina, Lyudmila, Macdonald, Ray, BagiĆski, BogusĆaw, Savchenko, Yevgeny, Jokubauskas, Petras (2019) Britholite Group Minerals from REE-Rich Lithologies of Keivy Alkali GraniteâNepheline Syenite Complex, Kola Peninsula, NW Russia. Minerals, 9 (12) 732 doi:10.3390/min9120732 | Journal (article/letter/editorial) | | Lithologies of Keivy Alkali GraniteâNepheline Syenite Complex, Kola Peninsula, NW Russia Dmitry Zozulya 1, *...Abstract: The Keivy alkali granite-nepheline syenite complex, Kola Peninsula, NW Russia, contains numerous associated...Zr-REE-Y-Nb occurrences and deposits, formed by a complex sequence of magmatic, late-magmatic, and post-magmatic...resulting in crystallization of fluorbritholite-(Ce). Britholite group minerals (mainly fluorcalciobritholite...syenites and carbonatites. In addition, in some complex rare-metal deposits related to felsic and intermediate |  | Sun, Yi, Lai, Yong, Chen, Jing, Shu, Qihai, Yan, Cong (2013) Rare Earth and Rare Metal Elements Mobility and Mineralization During Magmatic and Fluid Evolution in Alkaline Granite System: Evidence from Fluid and Melt Inclusions in Baerzhe Granite, China. Resource Geology, 63 (3) 239-261 doi:10.1111/rge.12007 | Journal (article/letter/editorial) | | stocks and several unexposed dikes. The exposed area of the east body is 0.3 km2, and the west body is...a coarse-grained to megacryst texture. Our study area (east body in Fig. 1c) is the main orebody of the...Ta)5O4], columbite [(Fe,Mn)(Nb,Ta)2O6], bastnasite [Ce(CO3)F] and a small amount of xinganite [(Y,Yb)BeSiO4(OH)]...phosphorus-bearing minerals such as xenotime [Y(PO4)] and monazite [(Ce,La,Th)(PO4)]. The order of formation of such...Spot size used: Fluency Carrier gas Agilent 7500 ce/cs quadrupole ICP MS RF Power Plasma Gas Flow Dwell |  | MacDonald, Ray, BagiĆski, BogusĆaw, Kartashov, Pavel M., Zozulya, Dmitry, DzierĆŒanowski, Piotr (2015) Interaction Of Rare-Metal Minerals With Hydrothermal Fluids: Evidence From QuartzâEpidote Metasomatites Of The Haldzan Buragtag Massif, Mongolian Altai. The Canadian Mineralogist, 53 (6) 1015-1034 doi:10.3749/canmin.1400023 | Journal (article/letter/editorial) | | essentially a continuous sequence of events during a complex evolutionary history, a peralkaline granitic pegmatite...pegmatite, including fergusonite-(Y), chevkinite-(Ce), and members of the epidote supergroup, were recrystallized...chevkinite-(Ce) by titaniteârutileâcerite-(Ce)âREE-carbonate assemblages and fergusonite-(Y) by complex hing...assemblages. Late-stage veining included cerite-(Ce), fergusonite-(Y), and REE-carbonates. Generally...formation of the pegmatite. Keywords: chevkinite-(Ce), hydrothermal ïŹuids, REE-bearing accessory phases |  | Yang, Wu-Bin, Niu, He-Cai, Shan, Qiang, Sun, Wei-Dong, Zhang, Hong, Li, Ning-Bo, Jiang, Yu-Hang, Yu, Xue-Yuan (2014) Geochemistry of magmatic and hydrothermal zircon from the highly evolved Baerzhe alkaline granite: implications for ZrâREEâNb mineralization. Mineralium Deposita, 49 (4) 451-470 doi:10.1007/s00126-013-0504-1 | Journal (article/letter/editorial) | | 1b). The late Jurassic volcanic rocks in this region consist of andesite, andesitic tuff, and intermediateâfelsic...et al. 2009). The Baerzhe pluton has an outcrop area of about 0.4 km2 and intruded the late Jurassic... yttroceberysite (hingganite) [(Y,Ce)BeSiO 4 (OH)], synchysite [Ce 2 Ca(CO 3 ) 3 F 2 ], pyrochlore [CaNb2O6F]...ferrocolumbite [(Fe,Mn)Nb2O6], monazite [(Ce,La,Nd, Th)PO 4 ], and fergusonite [(Ce,La,Y)NbO4]. Analytical... 23.9 11.7 23.0 13.6 11.1 23.2 25.1 12.5 Ce 106 126 64.9 26.3 71.1 104 57.2 80.9 27 |  | Sheard, E. R., Williams-Jones, A. E., Heiligmann, M., Pederson, C., Trueman, D. L. (2012) Controls on the Concentration of Zirconium, Niobium, and the Rare Earth Elements in the Thor Lake Rare Metal Deposit, Northwest Territories, Canada. Economic Geology, 107 (1) 81-104 doi:10.2113/econgeo.107.1.81 | Journal (article/letter/editorial) | | alkaline to peralkaline Blachford Lake Intrusive Complex. A layered alkaline suite dominated by aegirine...considered to represent the youngest phase of the complex. Much of the rare metal mineralization occurs in...mainly in monazite-(Ce), allanite-(Ce), bastnĂ€site-(Ce), parisite-(Ce), and synchysite-(Ce). Much of...zircon-fergusonite-(Y)-bastnĂ€site-(Ce)-parisite-(Ce)-synchysite-(Ce)-allanite-(Ce)-albitequartz-biotite-fluo...peralkaline granites of the Khadlzan-Buregtey Granitoid Complex of 2.65, 0.58, and 0.62 wt %, respectively. In |  | | Journal (article/letter/editorial) | | post-magmatic products of the Keivy alkali granite complex, NW Russia Dmitry Zozulya, Ray Macdonald, BogusĆaw...post-magmatic products of the Keivy alkali granite complex, NW Russia, Ore Geology Reviews (2020), doi: https://doi...post-magmatic products of the Keivy alkali granite complex, NW Russia Dmitry Zozulya a,*, Ray Macdonald b... Zozulya). Abstract The Keivy alkali granite complex, Kola Peninsula, NW Russia, contains numerous Zr-REE-YNb...Zr-REE-YNb occurrences and deposits, formed by a complex sequence of pegmatitic, hydrothermal and metasomatic |  | BagiĆski, BogusĆaw, Zozulya, Dmitry, MacDonald, Ray, Kartashov, Pavel M., DzierĆŒanowski, Piotr (2016) Low-temperature hydrothermal alteration of a rare-metal rich quartzâepidote metasomatite from the El'ozero deposit, Kola Peninsula, Russia. European Journal of Mineralogy, 28 (4) 789-810 doi:10.1127/ejm/2016/0028-2552 | Journal (article/letter/editorial) | | ed pr Abstract: The Keivy peralkaline granite complex, Kola Peninsula, Russia, is the only Archaean A-type...contains numerous rare-metal occurrences, formed by a complex sequence of magmatic, late magmatic and hydrothermal...host rocks in the Elâozero occurrence, chevkinite-(Ce), thorite, fergusonite-(Y) and zircon were formed...lower-temperature ïŹuids to complex assemblages containing ferriallaniteâallanite-(Ce), gadolinite-group minerals...granite magmas; at this stage, thorite, chevkinite-(Ce), zircon and fergusonite-(Y) were formed. Here we |  | | Journal (article/letter/editorial) | | stability of REE-F-(CO2)-minerals (basnaÌsite(Ce) and ïŹuocerite-(Ce)), whereas zirconosilicates and secondary...(H)REE. Hydrothermal ïŹuorite and ïŹuoriteâïŹuocerite-(Ce) solid solutions are interpreted to indicate the...REE-F-bearing minerals such as bastnaÌsite(Ce) and parisite-(Ce) in quartz-hosted ïŹuid inclusions in pegmatites...(Salvi and Williams-Jones, 1990) and the Tamazeght complex in Morocco 325 (Salvi et al., 2000) provide direct...intrusions in other parts of the world, notably, the Amis (Namibia), Tamazeght (Morocco) and Khan Bogd (Mongolia) |  | | Journal (article/letter/editorial) | | Mineralization in the Ambohimirahavavy Alkaline Complex, Madagascar Guillaume Estrade,1 Stefano Salvi,1...Abstract The Cenozoic Ambohimirahavavy alkaline complex in Madagascar consists of several syenitic to granitic...(HFSE)-rich phases consist mainly of zircon, bastnĂ€site-(Ce), and Ca-REE-, and Ca-HFSE-rich phases in pseudomorphs...exoskarn, the main HFSE-rich phases are bastnĂ€site-(Ce), zircon, pyrochlore, Nb-rich titanite, and an unidentified...these conditions, the fluid was in the two-phase region and vapor dominated. The rare metals were deposited |  | Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673 | Journal (article/letter/editorial) | | bismutostibiconite, calciobetafite, ceriopyrochlore-(Ce), cesstibtantite, ferritungstite, jixianite, kalipyrochlore...fondĂ© sur les ions se trouvant aux sites A, B et Y. Ce qui a dĂ©jĂ Ă©tĂ© considĂ©rĂ© le groupe du pyrochlore...bismutostibiconite, calciobĂ©tafite, cĂ©riopyrochlore-(Ce), cesstibtantite, ferritungstite, jixianite, kalipyrochlore...Ag, Mn, Sr, Ba, Fe2+, Pb2+, Sn2+, Sb3+, Bi3+, Y, Ce (and other REE), Sc, U, Th, âĄ, or H2O. The main constituents...better consistency with current best practice for complex solid-solutions (Hatert & Burke 2008). Like the |  | | Journal (article/letter/editorial) | | pegmatite: a case study from the Ambohimirahavavy complex, Madagascar GUILLAUME ESTRADE *, STEFANO SALVI...pegmatitic granites from the Cenozoic Ambohimirahavavy complex, and assess the magmatic conditions required to...with two other agpaitic minerals, nacareniobsite-(Ce) and turkestanite. In these granites, EGM are partly-to-completely...Introduction EUDIALYTE-group minerals (EGM) are complex Na-Ca-Zr-cyclosilicates with the general formula...1180/minmag.2017.081.053 are incorporated into complex Na-K-Ca-Zr-silicates, rich in volatiles (Cl, F |  | Sun, Zhenghao, Qin, Kezhang, Mao, Yajing, Tang, Dongmei, Wang, Fangyue, Evans, Noreen J., Zhou, Qifeng (2022) Mineral Chemistry of Pyrochlore Supergroup Minerals from the Boziguoer Nb-Ta-Zr-Rb-REE Deposit, NW China: Implications for Nb Enrichment by Alkaline Magma Differentiation. Minerals, 12 (7) 785 doi:10.3390/min12070785 | Journal (article/letter/editorial) | | and 0.02 Mt Ta2 O5 . It is an alkaline felsic complex 4.45 km in length and 0.5â1.3 km in width, composed...In addition, the substitution of REE (mainly La, Ce) for Ca in the Boziguoer pyrochlore supergroup minerals...Permian mantle plumes in the Tarim basin resulted in complex metallogenesis [44â48], and CarboniferousâPermian...well developed [43,49â58]. The Southern Tianshan region of China consists of the Central Tianshan block...orogenic is the very complex, including not onlyand the orogenic belt very complex, including notbelt only |  | Spandler, Carl, Morris, Caitlin (2016) Geology and genesis of the Toongi rare metal (Zr, Hf, Nb, Ta, Y and REE) deposit, NSW, Australia, and implications for rare metal mineralization in peralkaline igneous rocks. Contributions to Mineralogy and Petrology, 171 (12) doi:10.1007/s00410-016-1316-y | Journal (article/letter/editorial) | | the rock and include lueshite/natroniobite and complex Naâ FeâZrâNbâYâREE silicate minerals dominated...magma fractionation, the alkaline rocks of the region are interpreted to represent extrusive to hyperbyssal...Deposit. b Bouguer gravity anomaly map of the Dubbo area overlain by outcropping areas of Cenozoic alkali...the image. c Geological map of the Toongi Deposit region high-strength and corrosion-resistant alloys,...geochemistry of the alkaline igneous rocks of the local area, provides details of the ore textures and mineralogy |
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