Nb-Ta-Ti oxides fractionation in rare-metal granites: Krasno-Horni Slavkov ore district, Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F11%3A00107071" target="_blank" >RIV/00216224:14310/11:00107071 - isvavai.cz</a>
Alternative codes found
RIV/67985891:_____/11:00368903
Result on the web
<a href="http://dx.doi.org/10.1007/s00710-011-0152-z" target="_blank" >http://dx.doi.org/10.1007/s00710-011-0152-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00710-011-0152-z" target="_blank" >10.1007/s00710-011-0152-z</a>
Alternative languages
Result language
angličtina
Original language name
Nb-Ta-Ti oxides fractionation in rare-metal granites: Krasno-Horni Slavkov ore district, Czech Republic
Original language description
Nb-Ta-Ti-bearing oxide minerals (Nb-Ta-bearing rutile, columbite-group minerals) represent the most common Nb-Ta host in topaz-albite granites and related rocks from the Krasno-Horni Slavkov ore district. Tungsten-bearing columbite-(Fe), W-bearing ixiolite, wodginite and tapiolite-(Fe) are extremely rare in these rocks. Rutile contains significant levels of Ta (up to 37 wt.% Ta(2)O(5)) and Nb (up to 24 wt.% Nb(2)O(5)), with Ta/(Ta + Nb) ratio ranging from 0.04 to 0.61. Columbite-group minerals are represented mostly by columbite-(Fe) and rarely by columbite-(Mn), with Mn/(Mn + Fe) ratio ranging from 0.23 to 0.94. The exceptionally rare Fe-rich, W-bearing ixiolite occurs only as inclusions in Nb-Ta-bearing rutile from quartz-free alkali-feldspar syenites (VysokA1/2 Kamen stock). Wodginite was found only in the topaz-albite microgranite of gneissic breccia matrix that occurs in the upper most part of the Hub topaz-albite granite stock. In wodginite, the Mn/(Mn + Fe) ratio is 0.42-0.51, whereas the coexisting tapiolite-(Fe) has a distinctly lower Mn/(Mn + Fe) ratio close to 0.06.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mineralogy and Petrology
ISSN
0930-0708
e-ISSN
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Volume of the periodical
103
Issue of the periodical within the volume
1-4
Country of publishing house
AT - AUSTRIA
Number of pages
12
Pages from-to
37-48
UT code for WoS article
000297119100004
EID of the result in the Scopus database
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