Record details

Title
    Distribuce tremolitových mramorů v Českém masivu
Statement of responsibility
    Stanislav Houzar, Milan Novák, Monika Němečková
Other titles
    Distribution of tremolite marbles in the Bohemian Massif
Author
    Houzar, Stanislav
    Němečková, Monika
    Novák, Milan, 1952-
Language
    česky
Source title - serial
    Acta Musei Moraviae, Scientiae geologicae
Vol./nr.
    Roč. 85
Pages
    s. 105-123
Year
    2000
Notes
    4 obr., 4 fot., 2 tab.
    Anglické resumé
    il.
    Obsahuje bibliografické odkazy
    Zkr. název ser.: Acta Mus. Morav., Sci. geol.
Subject group
    asociace minerální
    lokalita geologická
    metamorfóza
    moldanubikum Šumavy
    moravikum
    mramor
    silesikum
    tremolit
Geographical name
    Česká republika
Keyword
    Českém
    Distribuce
    Masivu
    Mramorů
    Tremolitových
Abstract (in english)
   Tremolite marbles with abundant, large porhyroblasts of dark to light gray tremolite represent a specific lithotype of marbles in some crystalline complexes of the Bohemian Massif. They are typically located in the geological units overlying the units with at least Proterozoic age. The host rock complexes consist of dominant metapelites (mica schists, gneisses) with common intercalations of quartzites, marbles, minor metabasites and graphite-rich rocks. tremolite marbles forms relatively thin layers within large metacarbonate bodies or relatively small individual lenses. Two compositional types were recognized, calcite- and dolomite-dominant respectively. typical mineral assemblages are Cal+Tr˝Phl and Dol+Cal+Tr˝Phl, the higher-grade minerals such as forsterite, diopside and spinel occur only exceptionally. Tremolite is present in several texturally and perhaps also compositionally distinct types; however, early large porphyroblasts are dominant
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    11. 6. 2007
Import date
    8. 8. 2012