About: 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-richand Li,B-poor dike     Goto   Sponge   NotDistinct   Permalink

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  • A complex assemblage of Nb-Ta-(Sn) oxide minerals occur in a relatively narrow (similar to 1-2 m thick) extensively albitized, Hercynian granitic pegmatite dike intruding biotite granodiorites near Bratislava, SW Slovakia. The dike shows enrichment in beryl (locally Cs-rich) but absence of Li- and B-rich phases. Compositions and textural relationships indicate complex evolutions of Nb-Ta oxide phases with several generations presenting distinct textural and compositional features. The first generation of the Nb-Ta minerals from the quartz-microcline-muscovite zone show Ta, Fe-rich compositions with Ta# [Ta/(Ta + Nb)]= 0.52-0.70 (Ct I columbite-tantalite), 0.88-0.90 (Tap I ferrotapiolite) and 0.73-0.86 (Fw I ferrowodgin-ite); Mn# [Mn/(Mn + Fe)]= 0.32-0.49 (Ct I), 0.06-0.10 (Tap I) and 0.33-0.41 (Fw I).
  • A complex assemblage of Nb-Ta-(Sn) oxide minerals occur in a relatively narrow (similar to 1-2 m thick) extensively albitized, Hercynian granitic pegmatite dike intruding biotite granodiorites near Bratislava, SW Slovakia. The dike shows enrichment in beryl (locally Cs-rich) but absence of Li- and B-rich phases. Compositions and textural relationships indicate complex evolutions of Nb-Ta oxide phases with several generations presenting distinct textural and compositional features. The first generation of the Nb-Ta minerals from the quartz-microcline-muscovite zone show Ta, Fe-rich compositions with Ta# [Ta/(Ta + Nb)]= 0.52-0.70 (Ct I columbite-tantalite), 0.88-0.90 (Tap I ferrotapiolite) and 0.73-0.86 (Fw I ferrowodgin-ite); Mn# [Mn/(Mn + Fe)]= 0.32-0.49 (Ct I), 0.06-0.10 (Tap I) and 0.33-0.41 (Fw I). (en)
Title
  • 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-richand Li,B-poor dike
  • 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-richand Li,B-poor dike (en)
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  • 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-richand Li,B-poor dike
  • 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-richand Li,B-poor dike (en)
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  • RIV/00216224:14310/11:00056638!RIV12-MSM-14310___
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  • 1-4
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  • 216050
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  • RIV/00216224:14310/11:00056638
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  • columbite group minerals; tapiolite; ferrowodginite; pegmatite; evolution; Jezuitské Lesy; Slovakia (en)
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  • AT - Rakouská republika
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  • [FB3755C4F96E]
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  • Mineralogy and Petrology
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  • 102
http://linked.open...iv/tvurceVysledku
  • Gadas, Petr
  • Škoda, Radek
  • Chudík, Peter
  • Pršek, Jaroslav
  • Uher, Pavel
issn
  • 0930-0708
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  • 14310
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