 | Chudík, Peter, Uher, Pavel, Gadas, Petr, Škoda, Radek, Pršek, Jaroslav (2011) Niobium-tantalum oxide minerals in the Jezuitské Lesy granitic pegmatite, Bratislava Massif, Slovakia: Ta to Nb and Fe to Mn evolutionary trends in a narrow Be,Cs-rich and Li,B-poor dike. Mineralogy and Petrology, 102 (1) 15-27 doi:10.1007/s00710-011-0163-9 | Journal (article/letter/editorial) | | in the Jezuitské Lesy granitic pegmatite, Bratislava Massif, Slovakia: Ta to Nb and Fe to Mn evolutionary...dike intruding biotite granodiorites near Bratislava, SW Slovakia. The dike shows enrichment in beryl (locally...Ta# [Ta/(Ta + Nb)] =0.52−0.70 (Ct I columbite-tantalite), 0.88−0.90 (Tap I ferrotapiolite) and 0.73−0...Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia e-mail: chudik@fns.uniba.sk P. Uher Department...Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia P. Gadas : R. Škoda Department of Geological |  | | Journal (article/letter/editorial) | | subsolidus compositional trends of columbite–tantalite in the beryl–columbite Šejby granitic pegmatite...Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovakia; st.chladek@seznam.cz Corresponding author...K-feldspar unit. Primary magmatic CGM [columbite-(Fe)−tantalite-(Fe)], show an interesting compositional and textural...evolution. Subhomogeneous cores of columbite-(Fe)−tantalite-(Fe) (A) are surrounded by heterogeneous intermediate...jarosite-group minerals. In the next zone (C), irregular Mn-enriched patches occur and in the outermost thin |  | Yin, Rong, Wang, Ru Cheng, Zhang, Ai-Cheng, Hu, Huan, Zhu, Jin Chu, Rao, Can, Zhang, Hui (2015) CHEMICAL EVOLUTION AND LATE-STAGE RE-EQUILIBRATION OF Zr-Hf-U-BEARING COLUMBITE-GROUP MINERALS IN THE KOKTOKAY NO. 1 GRANITIC PEGMATITE, ALTAI, NORTHWESTERN CHINA. The Canadian Mineralogist, 53 (3) 461-478 doi:10.3749/canmin.1400091 | Journal (article/letter/editorial) | | (CGMs) not only display variations in Nb/Ta and Fe/Mn, but also are typified by noticeable Zr, Hf, and...values (0.06–0.98) and moderate variations in Mn/(Fe + Mn) values (0.58–0.99), which could be a result...35 wt.%. However, primary tantalite-(Mn) with Ta/(Nb + Ta) and Mn/(Fe + Mn) values of 0.63–0.98 and 0...different grains and single grains of primary tantalite-(Mn). Crystal-chemical considerations suggest that...present in the tantalite-(Mn) structure due to the substitution 3(Zr,Hf,U)4+ = 2(Nb,Ta)5+ + (Fe,Mn)2+. In some |  | | Journal (article/letter/editorial) | | Schist-Graywacke Complex. Cassiterite, rutile, ilmenite and tantalite-(Fe) occur disseminated in the border facies of...of the late albite unit and crystallization of tantalite-(Fe), and (ii) greisen-like bodies, which contain...high amounts of columbite-(Fe), columbite(Mn), tantalite-(Mn) I and II as well as cassiterite. The primary... 1992; Raimbault et al. 1995), the columbite–tantalite minerals of the complex lepidolitesubtype pegmatites...Moreover, they contain variable but accessory amounts of Mn–Fe–Ca phosphates (Llorens and Moro 2007, 2008, 2012) |  | Sun, Wenli, Zhao, Zhidan, Mo, Xuanxue, Wei, Chunjing, Dong, Guochen, Li, Xiaowei, Yuan, Wanming, Wang, Tao, Yang, Shuang, Wang, Bingzhang, Pan, Tong, Han, Jie, Cao, Hongliang, Tang, Yan, Zhang, Liangliang (2023) Age and Composition of Columbite-Tantalite Group Minerals in the Spodumene Pegmatite from the Chakabeishan Deposit, Northern Tibetan Plateau and Their Implications. Minerals, 13 (2) 201 doi:10.3390/min13020201 | Journal (article/letter/editorial) | | minerals Article Age and Composition of Columbite-Tantalite Group Minerals in the Spodumene Pegmatite from...major-element composition, and U-Pb dating of columbite-tantalite group minerals (CGMs) in the spodumene pegmatite...tourmaline [13,14], muscovite [15,16] and columbite-tantalite group minerals (CGMs) [17–19]. The Tibetan Plateau...rare-metal pegmatite dykes. The most fascinating region is the Tianshuihai-Songpan-Ganze terrane in the...related to Proand U-Pb isotope of CGMs (AB2 O6 , A = Mn, Fe, B = Nb, Ta) in the spodumene-bearing to-Tethys |  | Anderson, M. O., Lentz, D. R., McFarlane, C. R. M., Falck, H. (2013) A geological, geochemical and textural study of an LCT pegmatite: implications for the magmatic versus metasomatic origin of Nb-Ta mineralization in the Moose II pegmatite, Northwest Territories, Canada. Journal of GEOsciences, 58 (4) 299-320 | Journal (article/letter/editorial) | | central portions of the pegmatite. Columbite–tantalite minerals occur throughout the pegmatite, excluding...patterns demonstrate an evolution from columbite to tantalite, whereby the Ta/(Ta + Nb) ratio increased with...with progressive fractionation (0.13–0.59) but the Mn/(Mn + Fe) ratio remained nearly constant (0.15–0.31)...evolution of the Nb- Ta oxides from columbite to tantalite is consistent with crystallization from a magmatic...fluid. Keywords: Moose II pegmatite, columbite–tantalite, Nb–Ta chemical evolution, muscovite trace-element |  | | Journal (issue) | | , RODA-ROBLES, E., VILLASECA, C., SIMMONS, W. Fe-Mn-(Mg) distribution in primary phosphates and silicates... USA………………………………………………………………………………129 SIRBESCU, MN., C. Comparative fluid chemistry of internaylly-zoned...Beryl in the West-Carpathian granitic pegmatites, Slovakia: compositional variations and post-magmatic alteration...Products of Ca-metasomatism of Sc-enriched columbite-(Mn) from NYF pegmatite Kožichovice II, Czech Republic...differentiation of granitic magmas related to plutons in the region, or independently of plutonism by low-volume crustal |  | | Journal (volume) | | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...Mineralogical Society of Romania Geological Society of Slovakia, Mineralogical-Geochemical Branch Eötvös Loránd...(Romania) (Romania) (Austria) (Croatia) (Hungary) (Slovakia) (Greece) (Hungary) (USA) (Hungary) (Egypt) (Austria)...(Hungary) (Hungary) (Hungary) (Croatia) (Hungary) (Slovakia) (Serbia) (South Africa) (Austria) (France) (Hungary)...(Hungary) (Hungary) (Croatia) (UK) (Slovakia) (USA) (Austria) (Romania) (Slovakia) (China) (Germany) (Poland) |  | | Book | | the same passion for minerals and the NE Bavarian region. The Oberpfalz was his home and my adopted country...the principal techniques of deep geophysics, this region enables us to look at the origin of pegmatites...to find new profitable mineral deposits in the region are not very promising and mining in Germany is...mining was the reason for people to settle in a region but likewise the focal point of geoscientists to...extending from Switzerland, through Austria into Slovakia, this crustal section is host to a great variety |
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