Record details

Title
    North Bohemian Porcellanites and their Mineral Composition: the Case of the Dobrčice Quarry, the Most Basin
Author
    Fediuk, F.
    Langrová, Anna
    Melka, Karel
Conference
    Hibsch 2002 Symposium (03.06.2002-08.06.2002 : Teplá near Třebenice, Ústí nad Labem, Mariánské Lázně, Česká republika)
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Geolines
Vol./nr.
    Roč. 15, -
Pages
    s. 35-43
Year
    2003
Notes
    Rozsah: 9 s.
    Výzkumný záměr: CEZ:AV0Z3013912
Subject category
    caustic metamorphism
    coal burning
    Miocene sediments
Keyword
    Basin
    Bohemian
    Case
    Composition
    Dobrčice
    Mineral
    Most
    North
    Porcellanites
    Quarry
Abstract (in english)
   Miocene clays overlying the coal seams and transformed by earth fires into porcellanites represent a charakteristic lithological member of the Most Basin. Due to their extremely fine grain size, their detailed mineral composition has been determined insufficiently yet. Among countless North Bohemian porcellanite localities, the abandoned quarry near the village of Dobrčice has been chosen and subjected to field as well as to laboratory study (chemical analyses, optical microscopy, X-ray diffraction and electron microprobe analyses). The following mineral phases were found: mullite, tridymite, +-quartz, Fe, Mg cordierite, K-feldspar, calcic plagioclase, pyroxene, ilmenite, anatase or rutile, hematite, goethite, ulvöspinel, corundum, apatite and scare monazite.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012