Record details

Title
    Growth of plagioclase rims around metastable kyanite during decompression of high-pressure felsic granulites (Bohemian Massif)
Author
    Abart, Rainer
    Neusser, Gregor
    Rhede, Dieter
    Tajčmanová, Lucie
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Journal of Metamorphic Geology
Vol./nr.
    Roč. 29, č. podzim
Pages
    16
Year
    2011
Thesaurus term
    Bohemian Massif,chemical potential,decompression,high-pressure granulites, plagioclase rim
Keyword
    Around
    Bohemian
    Decompression
    During
    Felsic
    Granulites
    Growth
    High-pressure
    Kyanite
    Massif
    Metastable
    Plagioclase
    Rims
Abstract (in english)
   Samples of high-pressure felsic granulites from the Bohemian Massif (Variscan belt of Central Europe) characterized by a peak metamorphic (high-pressure) mineral assemblage of garnet-kyanite-plagioclase-K-feldspar-quartz ? biotite show well-developed plagioclase reaction rims around kyanite grains in two microstructural settings. In one setting, kyanite is randomly distributed in the polyphase matrix, whereas in the other setting, it is enclosed within large perthitic K-feldspar. Kyanite is regarded as a relict of the high-pressure metamorphic assemblage that became metastable during transition to a low-pressure overprint.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014