Record details

Title
    Mineralogie a podmínky vzniku tišnovských barytových žil (24-32 Brno)
Statement of responsibility
    Zdeněk Dolníček
Other titles
    Mineralogy and genetic conditions of the barite veins from Tišnov
Author
    Dolníček, Zdeněk
Language
    česky
Source title - serial
    Geologické výzkumy na Moravě a ve Slezsku
Vol./nr.
    Roč. 7
Pages
    s. 81-86
Year
    2000
Notes
    2 obr., 2 tab., 13 bibl.
    Anglické resumé
    il.
    Zkr. název ser.: Geol. Výzk. Mor. Slez. v Roce 1999.
Subject group
    baryt
    fylit
    geologie regionální
    horniny sedimentární
    inkluze fluidní
    izotopy stabilní
    moravikum
    moravskoslezské prevariské paleozoikum
    parageneze
    rula
    žíla
Geographical name
    ČR-Morava
    Dolní Loučky (Žďár nad Sázavou)
    Květnice (Brno-venkov)
    Štěpánovice (Brno-venkov)
    Tišnov (Brno-venkov)
Keyword
    24-32
    Barytových
    Brno
    Mineralogie
    Podmínky
    Tišnovských
    Vzniku
    žil
Abstract (in english)
   Hydrothermal barite vein mineralization was studied at four localities in surroundings of Tišnov (20 km NW from Brno). Veins have strike NW-SE and crosscut rocks of the Moravian Svratka Dome. Veins consists predomiantly of calcite and barite, less frequently of fluorite, quartz, dolomite, aragonit, hematite, goethite, chlorite. traces of sulfides (chalcopyrite, galena, sphalerite, marcasite, tetrahedrite, bravoite and pyrite) are present, too. Homogenization temperatures of the fluid inclusions range between 45 and 125°C. Cryometric measurements indicate Ca-Na-Cl and Na-Cl types of fluid. Salinity of the trapped solutions fluctuates very much (0-24 wt.% NaCl equiv.) dependently on evolution of mineralization. Oxygen and carbon isotopic composition of the parent fluid ranges between -3,5 and +5,5 per mil SMOW and between -6 and -10 per mil PDB, respectiveky.
   Mineralogical, geochemical, fluid inclusion and stable isotope data reveal basinal brines as parent fluid of the investigated mineralization
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    30. 8. 2007
Import date
    8. 8. 2012