Record details

    Latest Intrusions of Eisgarn Pluton (South Bohemia-Northern Waldviertel)
Statement of responsibility
    Karel Breiter, Susanna Scharbert
Other titles
    Spätintrusionen des Eisgarner Plutons (Südböhmen-Nordliches Waldviertel)
    Breiter, Karel, 1956-
    Scharbert, Susanna
Source title - serial
    Jahrbuch der Geologischen Bundesanstalt
    Vol. 141, no. 1
    p. 25-37
    8 obr., 2 fot., 4 tab., 31 bibl.
    Německé resumé
    Zkr. název ser.: Jb. Geol. Bundesanst. (Wien)
Subject group
    chemismus hornin
    datování Rb/Sr
    indicie rudní
    moldanubický pluton
    skupina columbitu
    těžké minerály
Geographical name
    Nakolice (České Budějovice)
    Nová Bystřice (Jindřichův Hradec)
    Nové Hrady (České Budějovice)
    Šejby (České Budějovice)
Abstract (in english)
   In the course of Eisgarn type granite intrusions highly differentiated muscovite-biotite bearing granites crystallised from residual melts. They are rich in silica, peraluminous, enriched in rare alkalies, often sodium dominated, with high concentrations of tin, niobium and tantalum. Typical is the high content of phosphorus which is incorporated in the crystal lattice of alkalifeldspar. These granites form two suites. One suite with the intrusions of Galthof and Homolka is bound to the central part of Eisgarn type granite N of Gmünd and is approximately 320 million years old. The other suite with the granites of Ober- and Unterlembach, Lagerberg und Pyhrabruck-Nakolice is approximately 314 million years old and occurs in the Eisgarn granite body W of Gmünd and N of Weitra. Small intrusions like the dykes of Šejby intruding paragneisses or a small stock of Galthof type granite are approximately six million years younger
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    25. 3. 2008
Import date
    8. 8. 2012