 | van de Ven, Mathijs A. J., Borst, Anouk M., Davies, Gareth R., Hunt, Emma J., Finch, Adrian A. (2019) Hydrothermal Alteration of Eudialyte-Hosted Critical Metal Deposits: Fluid Source and Implications for Deposit Grade. Minerals, 9 (7) 422 doi:10.3390/min9070422 | Journal (article/letter/editorial) | | eudialyte in nepheline syenite from the Ilímaussaq Complex, Greenland, one of the world’s largest known eudialyte-hosted...partial replacement of primary magmatic eudialyte by complex pseudomorph assemblages of secondary Zr-, Nb-,...characterised by the zirconosilicates catapleiite, gittinsite and zircon, respectively, of which the catapleiite...syenite samples (three catapleiite-type, one gittinsite-type, and one zircon-type assemblage). Trace...Y relative to fresh eudialyte. Moreover, the gittinsite- and zircon-type assemblages record preferential |  | Borst, A. M., Friis, H., Andersen, T., Nielsen, T. F. D., Waight, T. E., Smit, M. A. (2016) Zirconosilicates in the kakortokites of the Ilímaussaq complex, South Greenland: Implications for fluid evolution and high-field-strength and rare-earth element mineralization in agpaitic systems. Mineralogical Magazine, 80 (1) 5-30 doi:10.1180/minmag.2016.080.046 | Journal (article/letter/editorial) | | Zirconosilicates in the kakortokites of the Ilímaussaq complex, South Greenland: Implications for fluid evolution...Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen, Denmark Department...nepheline syenites (kakortokites) of the Ilímaussaq complex, South Greenland, host voluminous accumulations of...of eudialyte-group minerals (EGM). These complex Na-Ca-zirconosilicates contain economically attractive...secondary zirconosilicates catapleiite, zircon and gittinsite. Theoretical petrogenetic grid models are constructed |  | | Journal (article/letter/editorial) | | resources of critical metals are found commonly in complex natural systems that are not always well understood...AND FRANCES WALL found in the Ilímaussaq complex of southern Greenland (Sørensen, 1992), which hosts...exploration projects, Kringlerne and Kvanefjeld (Goodenough et al., 2016). Of these, the Kringlerne prospect lies...assemblages, including the first recognition of gittinsite as an alteration product of eudialyte, and show...alteration and mineral replacement in the Ilímaussaq complex, using samples from Kvanefjeld. This work |  | | 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...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...and Zr (e.g. the Kringlerne deposit in the Ilímaussaq complex, the Norra Kärr complex in Sweden and the |  | Borst, Anouk M, Friis, Henrik, Nielsen, Troels F D, Waight, Tod E (2018) Bulk and Mush Melt Evolution in Agpaitic Intrusions: Insights from Compositional Zoning in Eudialyte, Ilímaussaq Complex, South Greenland. Journal of Petrology, 59 (4) 589-612 doi:10.1093/petrology/egy038 | Journal (article/letter/editorial) | | compositional zoning in eudialyte, Ilímaussaq complex, South Greenland Anouk M. Borst 1,2*, Henrik Friis3...Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen, Denmark 2:...kakortokites of the Mesoproterozoic Ilímaussaq complex, South Greenland, comprise a rhythmically layered...eudialyte-group minerals (EGM), i.e. structurally complex Na-zirconosilicates, as a major cumulate phase...kakortokite layering and overall evolution of the complex. Based on these data we argue for continuous bulk |  | Smith, M.P., Moore, K., Kavecsánszki, D., Finch, A.A., Kynicky, J., Wall, F. (2016) From mantle to critical zone: A review of large and giant sized deposits of the rare earth elements. Geoscience Frontiers, 7 (3) 315-334 doi:10.1016/j.gsf.2015.12.006 | Journal (article/letter/editorial) | | the primary igneous source, but the grade is a complex function of igneous source, magmatic crystallisation...molal Na2O+K2O/Al2O3>1.2, and the formation of complex Zr and Ti minerals such as eudialyte – such rocks...host marble. The geochronology of the ores is complex, with periods defined from 1230– 1350 Ma (largely...2015). SC Bear Lodge– The Bear Lodge Carbonatite complex is not currently mined, but hosts potentially economic...by Moore et al. (2015). The Bear Lodge Alkaline Complex is part of the Black Hills Intrusive Belt, South |  | Silin, Ivan, Gürsel, Devrim, Büchter, Christian, Weitkämper, Lars, Wotruba, Hermann (2021) Recovery of Catapleiite and Eudialyte from Non-Magnetic Fraction of Eudialyte ore Processing of Norra Kärr Deposit. Minerals, 12 (1) 19 doi:10.3390/min12010019 | Journal (article/letter/editorial) | | Eudialyte ores from Norra Kärr (Sweden) and Kringlerne (Greenland) are considered a potential source of rare-earth...Kärr is a peralkaline nepheline-syenite intrusive complex located in southcentral Sweden and is defined as...britholite, cerite, and zircon, which are formed as complex pseudomorphic aggregates of secondary zirconosilicates...REE phases, were identified as minor accessory complex HFSE- and REE-bearing minerals [7]. According to...magnetic separation alone. Catapleiite is a rare, complex zirconosilicate (typomorphic postmagmatic mineral) |  | | Book (edition) | | Ivittuut municipality. southwest Wi tgreenl Greenland. 73. 1492, ZK 194. 221-227 (str.) □ Adumite...tric., Kangcrdluarsuk.Julianehaabdistricl,wcst Greenland,56, 427-446 (str.) Aenigmalilegroup 6, mon....KakarsualsiakIsland,at the coastof Akajaruanik,Greenland,56, 447-464 (str.),EJM 18, 551-567 Epido1egroup...(Sr,Ca), ,(Cc.Lu),(CO,)i(OH),·(4-x)H:0, x Greenland. Greenland. 60. 280- 284 (str.) D = 2.0-2.8. orth...78--83(slr.) D Arcublslte,Ag.CuBiS,,lvigtut,Greenland,63, 424 D Anlalte, Pb1.SbuSi,Cl,,mon., Madj |  | | Book (volume) | | bonds or groups of atoms forming covalent bonds – complex anions (e.g. CO32, C2O42, SO42, PO43, SiO44...vibrations of most important coordination polyhedra and complex anionic groups are listed by Miller and Wilkins...zirconoand titanosilicates characterized by very complex and variable crystal-chemical features (Johnsen...crystals (solid solutions involving different complex anions, alteration of different kinds of stacking...spectra of cancrinite-group minerals with more complex structures and the number of layers more than 2 |
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Kringlerne, Kangerluarsuk Fjord, Ilímaussaq complex, Kujalleq, Greenland