Record details

    Mineral Chemistry and Petrogenesis of Ultramafic Alkaline Lamprophyre Dyke from the Klunst Quarry in Ebersbach (Lusatia, Germany)
Statement of responsibility
    Axel Dieter Renno, Sabine Haser, Klaus Peter Stanek, Jens Götze
Other titles
    HIBSCH 2002 Symposium, Teplá near Třebenice, Ústí nad labem, Mariánské Lázně, Czech Republic, June 3-8, 2002 (Variant.)
    Götze, Jens
    Haser, Sabine
    Renno, Axel Dieter
    Stanek, Klaus Peter
Source title - serial
    Vol. 15
    p. 133-139
    6 obr., 2 fot., 2 tab., 24 bibl.
    Zkr. název ser.: Geolines (Praha)
Subject group
    alkalický typ
    chemismus minerálů
    hydrotermální alterace
    kenozoické vulkanity Českého masivu
    zóna riftová
Geographical name
    Ebersbach (SRN-Sachsen)
    Osečná (Liberec)
Abstract (in english)
   A representative set of samples of ultramafic alkaline lamprophyre (UML) dykes from Ebersbach (Lusatia, Germany) has been studied to determine the mineralogical composition of calcites, apatites and micas. Calcite can be subdivided into two groups, Sr-rich and Sr-poor calcite. Apatite shows a significant enrichment in Si and CO3, and noteworthy concentralions of SO3, Si; Ba and Na. The studied micas are mainly phlogopites and tetraferriphlogopites. Three different types of mica were recognized: (Cr, Ti, Al)-rich cores of megacrysts, (Ti, Ba, Al)-rich rims of megacrysts as well as Fe-rich and Al-poor groundmass mica. Apatite crystallized from a segregated carbonatitic melt together with Sr-rich calcite and Al-poor and Fe-rich groundmass mica. Rounded cores of mica megacrysts represent xenocrysts from a phlogopite-enriched mantle. The rims and groundmass micas represent pro-ducts of magmatic crystallization. Sr-poor calcite was formed during hydrothermal alteration of the UML rocks
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    13. 2. 2008
Import date
    8. 8. 2012