Record details

    Petrologie a rudní parageneze vápenato-silikátových hornin keprnické skupiny silezika (14-24 Bělá pod Pradědem)
Statement of responsibility
    Miroslav Veselý, Zdeněk Losos
Other titles
    Petrology and ore assemblages of calc-silicate rocks of the Keprník Group in the Silesicum
    Losos, Zdeněk
    Veselý, Miroslav
Source title - serial
    Geologické výzkumy na Moravě a ve Slezsku
    Roč. 8
    s. 85-88
    3 obr., 1 tab., 13 bibl.
    Anglické resumé
    Zkr. název ser.: Geol. Výzk. Mor. Slez. v Roce 2000.
Subject group
    geneze ložiska
    ložisko metamorfní
    mineralogie rudní
    mineralogie topografická
    vrásnění variské
Geographical name
    Adolfovice (Jeseník)
    Červená hora (Jeseník)
Abstract (in english)
   The calc-silicate rocks (skarns) of the Keprník Group in the Silesicum were influenced by regional metamorphism in the amphibolite facies and contain mineral assemblage: diopside-quartz-plagioclase-calcite-dolomite-titanite+-hornblende+-microcline+-biotite (phlogopite)+-chlorite+-minerals of zoisite-epidotite group. From the accessoric minerals are current rutile, apatite,zircon and locally ore minerals. All present calcareous inosilicates and phyllosilicates have Mg-rich and Fe-poor composition. The sulphidic mineralization connected with calc-silicate rocks (localities Hučivá Desná, Mlýnky a Bezný) is represented by two different types. The first ore type of disseminated or cluster structure are Fe-sulphides (pyrrhotite, pyrite) such common accessories in rocks at localities Hučivá Desná and Mlýnky.
   Only at locality Bezný were founded Fe-sulphides of massive structures and rarely implications of banded structures too.The second ore type mainly of cluster structure is represented by galena with sphalerite, locally accompanied by pyrite and chalcopyrite.This ore type is adherent to the carbonate parts (in Hlučivá Desná) or quartz veins (in Mlýnky) which are connected with calc-silicate rocks. The succession of ore minerals generally conforms with the sequence of sulphides in metamorphogene ores. Genesis of individual ore assemblages is similar in all localities. Ore mineralizations were probably connected with volcano-sedimentary protoliths of rocks and with later metamorphogene and hydrothermal processes which caused their mobilization and subsequent accumulation
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    16. 4. 2008
Import date
    8. 8. 2012