Počet záznamů: 1  

Diversity of Ti–Sn–W–Nb–Ta oxide minerals in the classic granite-related magmatic–hydrothermal Cínovec/Zinnwald Sn–W–Li deposit (Czech Republic)

  1. 1.
    SYSNO ASEP0480068
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevDiversity of Ti–Sn–W–Nb–Ta oxide minerals in the classic granite-related magmatic–hydrothermal Cínovec/Zinnwald Sn–W–Li deposit (Czech Republic)
    Tvůrce(i) Breiter, Karel (GLU-S) RID, SAI, ORCID
    Korbelová, Zuzana (GLU-S) RID, SAI
    Chládek, Š. (SK)
    Uher, P. (SK)
    Knésl, I. (CZ)
    Rambousek, P. (CZ)
    Honig, S. (CZ)
    Šešulka, V. (CZ)
    Zdroj.dok.European Journal of Mineralogy. - : Copernicus - ISSN 0935-1221
    Roč. 29, č. 4 (2017), s. 727-738
    Poč.str.12 s.
    Forma vydáníTištěná - P
    Jazyk dok.eng - angličtina
    Země vyd.DE - Německo
    Klíč. slovarutile ; cassiterite ; scheelite ; wolframite ; columbite-group minerals ; pyrochlore-supergroup minerals ; granite ; greisen ; Cínovec ; Zinnwald
    Vědní obor RIVDB - Geologie a mineralogie
    Obor OECDMineralogy
    CEPGA14-13600S GA ČR - Grantová agentura ČR
    Institucionální podporaGLU-S - RVO:67985831
    UT WOS000426885400019
    EID SCOPUS85031276581
    DOI10.1127/ejm/2017/0029-2650
    AnotaceThe diversity of Ti–Sn–W–Nb–Ta oxide minerals within a complex granite-related magmatic–hydrothermal system was studied by electron microprobe on the example of the Cínovec (Zinnwald) granite cupola containing a well-known Sn–W–Li deposit. The Cínovec granite cupola is a late Variscan (ca. 322 Ma), strongly fractionated A-type pluton composed of upper zinnwaldite granite and lower biotite granite. The zinnwaldite granite contains numerous subhorizontal quartz veins and greisen bodies, both composed of quartz, zinnwaldite and topaz and minor amounts of fluorite and Ti–Sn–W–Nb–Ta oxide minerals. Common Nb–Ta-rich rutile and rare cassiterite, columbite-(Fe) and -(Mn), and minerals of the pyrochlore-supergroup were found in biotite granite in deeper parts of the pluton, whereas common columbite occurs with rare W-rich ixiolite, qitianlingite, pyrochlores, and scheelite in some varieties of zinnwaldite granite. In the uppermost part of the cupola, Ta-rich cassiterite, microlite and pyrochlore are frequently observed. The greisens host predominantly wolframite, scheelite and Ta-poor cassiterite, which are accompanied by columbite-group minerals, rare W-rich ixiolite and qitianlingite. The Nb,Ta-rich rutile, interiors of the columbite crystals and Ta-rich cassiterite disseminated in the granites are interpreted as products of magmatic crystallization. The Ta-rich rims of columbite-(Fe) to -(Mn), Ta-poor cassiterite and all wolframite found in the greisen should be attributed to the early hydrothermal (greisenization) stage, whereas W-rich ixiolite, qitianlingite, and pyrochlore-supergroup minerals appear to belong to the later, hydrothermal event at comparatively lower temperature.
    PracovištěGeologický ústav
    KontaktJana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
    Rok sběru2018
Počet záznamů: 1  

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