Nb-Ta-Ti oxides fractionation in rare-metal granites: Krasno-Horni Slavkov ore district, Czech Republic
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/67985891:_____/11:00368903
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Nb-Ta-Ti oxides fractionation in rare-metal granites: Krasno-Horni Slavkov ore district, Czech Republic
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Nb-Ta-Ti oxides fractionation in rare-metal granites: Krasno-Horni Slavkov ore district, Czech Republic
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10500 - Earth and related environmental sciences
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Mineralogy and Petrology
ISSN
0930-0708
e-ISSN
—
Svazek periodika
103
Číslo periodika v rámci svazku
1-4
Stát vydavatele periodika
AT - Rakouská republika
Počet stran výsledku
12
Strana od-do
37-48
Kód UT WoS článku
000297119100004
EID výsledku v databázi Scopus
—