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Diversity of Ti–Sn–W–Nb–Ta oxide minerals in the classic granite-related magmatic–hydrothermal Cínovec/Zinnwald Sn–W–Li deposit (Czech Republic)
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SYSNO ASEP 0480068 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Diversity 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. 727-738Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova rutile ; cassiterite ; scheelite ; wolframite ; columbite-group minerals ; pyrochlore-supergroup minerals ; granite ; greisen ; Cínovec ; Zinnwald Vědní obor RIV DB - Geologie a mineralogie Obor OECD Mineralogy CEP GA14-13600S GA ČR - Grantová agentura ČR Institucionální podpora GLU-S - RVO:67985831 UT WOS 000426885400019 EID SCOPUS 85031276581 DOI 10.1127/ejm/2017/0029-2650 Anotace The 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. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2018
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