2013
Crystal structure and compositional evolution of vanadium-rich oxy-dravite from graphite quartzite at Bítovánky, Czech Republic
CEMPÍREK, Jan, Stanislav HOUZAR, Milan NOVÁK, Lee GROAT, L.B. SELWAY et. al.Základní údaje
Originální název
Crystal structure and compositional evolution of vanadium-rich oxy-dravite from graphite quartzite at Bítovánky, Czech Republic
Autoři
CEMPÍREK, Jan (203 Česká republika, garant), Stanislav HOUZAR (203 Česká republika), Milan NOVÁK (203 Česká republika, domácí), Lee GROAT (124 Kanada), L.B. SELWAY (124 Kanada) a Vladimír ŠREIN (203 Česká republika)
Vydání
Journal of Geosciences, 2013, 1802-6222
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10500 1.5. Earth and related environmental sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 0.744
Kód RIV
RIV/00216224:14310/13:00067008
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000324554300006
Klíčová slova anglicky
vanadium tourmaline trace elements structure refinement Moldanubian Zone Bohemian massif
Změněno: 2. 4. 2014 16:12, Ing. Andrea Mikešková
Anotace
V originále
Two types of V-rich dravitic tourmaline (oxy-dravite to dravite) distinct in their color, morphology, paragenesis and composition from graphite quartzite at Bítovánky near Třebíč, Moldanubicum, Bohemian Massif, were studied by means of electron microprobe, laser ablation inductively coupled plasma mass spectroscopy (LA-ICP--MS), and single-crystal X-ray diffraction. Green oxy-dravite (GVD) from graphite quartzite is sporadically zoned with V-enriched rims; brown oxy-dravite to dravite (BVD) from mobilized quartz-rich nests is characterized by such V-enriched rims. Both types of V-rich oxy-dravite feature Al–Mg–V disorder between the Y and Z sites; V and Cr are preferentially located at the Y site. The V-rich oxy-dravite from Bítovánky has unusually high Ca contents and high proportion of vacancy at the X site. Most common trace elements include Ti, Cr, Mn, Zn, Sc, Ga, Sr, Ni, Sn, and LREE. High concentrations of V, Cr and Ti (as well as elevated Mn, Zn, Sc, Sn, and Sr) in the GVD and late BVD most probably result from hydrothermal dissolution of (Ti,V)-oxides and other accessory phases during a high-grade metamorphic overprinting of the host graphite quartzite assemblage.
Návaznosti
GAP210/10/0743, projekt VaV |
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