Record details

Title
    Gold-bearing quartz veins of the Bělčice ore district, Bohemian Massif: evidence for incursion of metamorphic fluids into a granodiorite body and for isothermal mixing between two types of metamorphic fluids
Author
    Novák, Tomáš
    Zachariáš, Jiří
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Journal of Geosciences
Vol./nr.
    Roč. 54, č. 1
Pages
    16
Year
    2009
Thesaurus term
    Blatná granodiorite
    Bohemian Massif
    chlorite thermometry
    fluid inclusions
    Moldanubian Zone
    orogenic gold
    stable isotopes
Keyword
    Bělčice
    Body
    Bohemian
    District
    Evidence
    Fluids
    Gold-bearing
    Granodiorite
    Incursion
    Isothermal
    Massif
    Metamorphic
    Mixing
    Ore
    Quartz
    Two
    Types
    Veins
Abstract (in english)
   Quartz gangue at the Bělčice ore district precipitated from low-salinity (3-7 wt.% eq. NaCl) aqueous-carbonic fluids with significant admixture of CH4 (up to 15 mol. %) at 350-400 °C and 200-400 MPa. Isotope composition of quartz and calcite gangue indicates progressively heavier oxygen of mineralizing fluids (from 9-10 ? to 10-14 ? SMOW),what suggests mixing between two types of metamorphic fluids.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    8. 8. 2012