Podrobnosti záznamu

Název
    Turmalíny ze svorů svrateckého krystalinika
Další názvy
    Tourmaline from the mica schist of the Svratka Crystalline Complex
Autor
    Buriánek, David
    Čopjaková, Renata
Jazyk
    česky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Acta Mus. Moraviae, Sci. geol.
Svazek/č.
    Roč. 93, č. 1
Strany
    17
Rok
    2008
Výraz tezauru
    boron
    Czech Republic
    metamorphism
    mica schist
    schorl-dravite
    Svratka Crystalline Complex
    tourmaline
Klíčové slovo
    Krystalinika
    Svorů
    Svrateckého
    Turmalíny
Abstrakt (česky)
   Tourmaline is a typical accessory mineral for most of micaschists in the Svratka Crystalline Complex. Based on petrographic and chemical data, two main generations of tourmaline have been distinguished. The first generation (tourmaline cores) corresponds to the prograde metamorphic event characterised by mineral assemblage Ms+Bt+Tu+/-Ky+/-St. The second generation of tourmaline (tourmaline rims) formed during exhumation of the Svratka Crystalline Complex, simultaneously with decompression breakdown of staurolite. Microprobe analyses of tourmalines reveal a compositional variation between Al-rich schorldravite to dravite (XFe 0.22-0.61; Al 5.88-6.77 apfu; Na 0.45-0.91 apfu). Tourmaline rims are typically enriched in Fe, usually enriched in Al and depleted in Mg, Na, Si relative to tourmaline cores.
Abstrakt (anglicky)
   Tourmaline is a typical accessory mineral for most of micaschists in the Svratka Crystalline Complex. Based on petrographic and chemical data, two main generations of tourmaline have been distinguished. The first generation (tourmaline cores) corresponds to the prograde metamorphic event characterised by mineral assemblage Ms+Bt+Tu+/-Ky+/-St. The second generation of tourmaline (tourmaline rims) formed during exhumation of the Svratka Crystalline Complex, simultaneously with decompression breakdown of staurolite. Microprobe analyses of tourmalines reveal a compositional variation between Al-rich schorldravite to dravite (XFe 0.22-0.61; Al 5.88-6.77 apfu; Na 0.45-0.91 apfu). Tourmaline rims are typically enriched in Fe, usually enriched in Al and depleted in Mg, Na, Si relative to tourmaline cores.
Přispěvatel
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012