 | Pršek, Jaroslav, Majka, Jaroslaw, Uher, Pavel, Chudík, Peter (2010) Niobium-tantalum minerals in the Skoddefjellet NYF granitic pegmatite, Svalbard Archipelago, Norway: Primary versus secondary assemblage. Neues Jahrbuch für Mineralogie - Abhandlungen, 187 (3) 235-248 doi:10.1127/0077-7757/2010/0172 | Journal (article/letter/editorial) | | Niobium-tantalum minerals in the Skoddefjellet NYF granitic pegmatite, Svalbard Archipelago, Norway: Primary versus secondary...of Nb-Ta mineralization in a granitic pegmatite from the Svalbard Archipelago, Arctic Caledonides and the...phases are discussed. The Skoddefjellet NYF pegmatite located in southwest Spitsbergen (Wedel Jarlsberg Land)...environment and increasing fluorine activity during the pegmatite evolution. The formation of secondary phases is...is related to the hydrothermal stage of the pegmatite. Notably, the formation of Nb,Ta-bearing rutile |  | Majka, J., Pršek, J., Budzyń, B., Bačík, P., Barker, A. K., Łodziński, M. (2011) Fluorapatite-hingganite-(Y) coronas as products of fluid-induced xenotime-(Y) breakdown in the Skoddefjellet pegmatite, Svalbard. Mineralogical Magazine, 75 (1) 159-167 doi:10.1180/minmag.2011.075.1.159 | Journal (article/letter/editorial) | | fluid-induced xenotime-(Y) breakdown in the Skoddefjellet pegmatite, Svalbard J. MAJKA1,*, J. PRŠEK2, B. BUDZYŃ3...The pre-Caledonian NYF Skoddefjellet pegmatite in Wedel Jarlsberg Land, Svalbard, contains xenotime-(Y)...Ca- and F-bearing fluids interacting with the pegmatite. The occurrence of hinnganite-(Y) as a breakdown...There are few Ca-bearing primary phases in the pegmatite, indicating that the source of fluid was probably...of the pegmatite (i.e. beryl dissolution). K EY WORDS : xenotime, hingganite, apatite, pegmatite, Svalbard |  | Simandl, G. J., Petrus, J. A., Leybourne, M. I., Paradis, S., Akam, C. (2019) Primary fersmite and the direct indicator mineral concept, Mount Brussilof, British Columbia. GeoFile 2019-06. British Columbia Geological Survey | Report (issue) | | dolomite are rimmed by a mixture of sphalerite, pyrite and galena. Mount Brussilof magnesite deposit...pegmatites Skoddefjellet pegmatite 10 4 10 3 Ta x10 Alpe Rosso pegmatite Baveno pegmatite Himalaya...Himalaya pegmatite Huron Claim pegmatite King’s Mountain pegmatite Fig. 9. Ca-Nb-Ta x 10 compositions in weight...(red), carbonatite (blue), pegmatite (pink), and placer (green) deposits. Pegmatite-associated fersmite shows...along the Nb-Ca axis relative to carbonatiteand pegmatite-hosted fersmite. From Simandl et al. (2019). |  | | Journal (article/letter/editorial) | | cebaite), yangzhumingite, cassiterite, galena, pyrite, and rare magnetite and potassium feldspar. Pyrochlore...barite, galena and large (1 mm) euhedral crystals of pyrite. (Fig.7). In some examples, vugs are lined with...cebaite), yangzhumingite, cassiterite, galena, pyrite, and rare magnetite and potassium feldspar. Note...lined with colloform fluorite plus sphalerite, pyrite and coarse euhedral ferrodolomite crystals (Figs...2011) and subsequently from the Kvaløya Island (Norway) lamproite dike (Schingaro et al.,2014) . The yangzhumingite |  | Švecová, E., Čopjaková, R., Losos, Z., Škoda, R., Nasdala, L., Cícha, J. (2016) Multi-stage evolution of xenotime–(Y) from Písek pegmatites, Czech Republic: an electron probe micro-analysis and Raman spectroscopy study. Mineralogy and Petrology, 110 (6) 747-765 doi:10.1007/s00710-016-0442-6 | Journal (article/letter/editorial) | | alkali-rich fluids during the hydrothermal stage of the pegmatite evolution. The magmatic xenotime underwent intense...xenotime-(Y) from three granitic pegmatites of the Písek pegmatite field, Czech Republic. The chemical variability...Geological setting Moldanubian Zone The Písek pegmatite field is located 5–10 km E from the city of Písek...overprint (331–326 Ma). Pegmatites of the Písek pegmatite field Beryl-bearing pegmatites with abundant tourmaline...tourmaline are characteristic for the Písek pegmatite field. They intruded the migmatized gneisses of |  | | Report (issue) | | local garnet and muscovite, abundant aplite and pegmatite dikes JHgg.e equigranular granite foliated...magmatic layering, zoned K-feldspar, and Kfeldspar pegmatite common sodic(?) amphibole and pyroxene, apatite...≤5% of the rock. Trace amounts of disseminated pyrite and chalcopyrite occur and, in a few small outcrops...178.8 to 178.4 Ma); and 3) massive syenite and pegmatite (ca. 177 to 175 Ma). The older biotite pyroxenite...the quartz vein contains massive and disseminated pyrite, and carries minor amounts of Au, and elevated |
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