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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)

SYSNO ASEP	0480068
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Diversity of Ti–Sn–W–Nb–Ta oxide minerals in the classic granite-related magmatic–hydrothermal Cínovec/Zinnwald Sn–W–Li deposit (Czech Republic)
Author(s)	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)
Source Title	European Journal of Mineralogy. - : Copernicus - ISSN 0935-1221 Roč. 29, č. 4 (2017), s. 727-738
Number of pages	12 s.
Publication form	Print - P
Language	eng - English
Country	DE - Germany
Keywords	rutile ; cassiterite ; scheelite ; wolframite ; columbite-group minerals ; pyrochlore-supergroup minerals ; granite ; greisen ; Cínovec ; Zinnwald
Subject RIV	DB - Geology ; Mineralogy
OECD category	Mineralogy
R&D Projects	GA14-13600S GA ČR - Czech Science Foundation (CSF)
Institutional support	GLU-S - RVO:67985831
UT WOS	000426885400019
EID SCOPUS	85031276581
DOI	10.1127/ejm/2017/0029-2650
Annotation	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.
Workplace	Institute of Geology
Contact	Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272
Year of Publishing	2018

Number of the records: 1