 | Broom-Fendley, Sam, Smith, Martin P, Andrade, Marcelo B, Ray, Santanu, Banks, David A, Loye, Edward, Atencio, Daniel, Pickles, Jonathan R, Wall, Frances (2020) Sulfur-bearing monazite-(Ce) from the Eureka carbonatite, Namibia: oxidation state, substitution mechanism, and formation conditions. Mineralogical Magazine, 84 (1) 35-48 doi:10.1180/mgm.2019.79 | Journal (article/letter/editorial) | | Sulfur-bearing monazite-(Ce) from the Eureka carbonatite, Namibia: oxidation state, substitution mechanism...Brazil Running title: “Sulfur-bearing Monazite-(Ce) from Eureka, Namibia” This is a 'preproof' accepted article...79 Keywords Sulfur-bearing monazite-(Ce) Redox Carbonatite Silcrete Calcrete Weathering...Abstract Sulfur-bearing monazite-(Ce) occurs in silicified carbonatite at Eureka, Namibia, forming rims up to...to ~0.5 mm thick on earlier-formed monazite-(Ce) megacrysts. We present X-ray photoelectron spectroscopy |  | Wall, F., Niku-Paavola, V. N., Storey, C., Muller, A., Jeffries, T. (2008) XENOTIME-(Y) FROM CARBONATITE DYKES AT LOFDAL, NAMIBIA: UNUSUALLY LOW LREE:HREE RATIO IN CARBONATITE, AND THE FIRST DATING OF XENOTIME OVERGROWTHS ON ZIRCON. The Canadian Mineralogist, 46 (4) 861-877 doi:10.3749/canmin.46.4.861 | Journal (article/letter/editorial) | | XENOTIME-(Y) FROM CARBONATITE DYKES AT LOFDAL, NAMIBIA: UNUSUALLY LOW LREE:HREE RATIO IN CARBONATITE, AND THE...1, Aviation Road, Private Bag 13297, Windhoek, Namibia Craig STOREY Department of Earth Sciences, University...very rare in carbonatite. Uniquely, at Lofdal, Namibia, xenotime-(Y) occurs in many carbonatite dykes. It...zircon in calcite carbonatite and also occurs as aggregates in ankerite carbonatite, aggregates associated...hematite, and crystals associated with monazite-(Ce) and synchysite-(Ce) in highly oxidized iron-rich calcite |  | | Journal (article/letter/editorial) | | (Pasero et al., 2019), yet only four (xenotime, monazite, bastnäsite and loparite) are presently processed...in demand for magnet production while others (e.g. Ce) are over-supplied – a mismatch termed the ‘balance...incorporation of sulfur into the structure of monazite-group minerals. Sulfur is potentially an important...2016). BroomFendley et al. (2020) demonstrate that monazite accommodates sulfur as sulfate, but can also incorporate...sulfur-bearing monazite formed in a weathering environment. However, sulfur is known to occur in monazite in some |  | | Book | | Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree ...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...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits |  | Kozlov, Evgeniy, Fomina, Ekaterina, Sidorov, Mikhail, Shilovskikh, Vladimir, Bocharov, Vladimir, Chernyavsky, Alexey, Huber, Miłosz (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) | | minerals Article The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy...Vuoriyarvi Devonian carbonatite–ijolite–pyroxenite–olivinite complex comprises several carbonatite fields: Neske...strontianite, bastnäsite, and synchysite. Varieties of carbonatite that contain the highest concentrations of REE...Simultaneously, strontianite, quartz, calcite, monazite, HREE-rich thorite, and Fe-hydroxides were deposited...(e.g., [74–76]). Importantly, Mongolia [52,53], Namibia New Zealand Norway [58], Russia [59–64], South |  | Hore, S. B., Hill, S. M., Reid, A., Wade, B., Alley, N. F., Mason, D. R. (2020) U–Pb geochronology reveals evidence of a Late Devonian hydrothermal event, and protracted hydrothermal–epithermal system, within the Mount Painter Inlier, northern Flinders Ranges, South Australia. Australian Journal of Earth Sciences, 67 (7). 1009-1044 doi:10.1080/08120099.2020.1793383 | Journal (article/letter/editorial) | | LA-ICPMS U–Pb monazite analyses indicate the timing of this hydrothermal event. The dominant monazite population...Breccia is, however, dominated by a ca 367 Ma aged monazite population, probably reflecting overprinting of...the Mount Gee Sinter. It is interpreted that the monazite ca 365 Ma age reflects a significant Late Devonian...Mount Painter Inlier (MPI) within the Mount Painter region (Hore, 2015) (Figure 1). The MPI and KEYWORDS...± P ± rare earth element (REE)rich, comprising monazite-rich layered quartz–hematite masses, exposed primarily |
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Eureka carbonatite, Eureka Farm 99, Dâures Constituency, Erongo Region, Namibia