Record details

    "Calcispheres" as source of lime mud and peloids - evidence from the early Middle Devonian of the Prague Basin, Czech Republic
    Berkyová, Stanislava
    Munnecke, Axel
Publication type
    článek v periodiku
Source title - serial
    Bulletin of Geosciences
    Roč. 85, č. 4
Thesaurus term
    calcispheres, peloids, micritization, lime-mud, Prague Basin, Devonian
Abstract (in english)
   Several types of peloids are present in the Lower and Middle Devonian limestones of the Prague Basin (uppermost part of the Třebotov Limestone of the Daleje-Třebotov Formation and Choteč Formation, uppermost Emsian-Eifelian) and are interpreted as being of calcispheral, echinoderm, and/or calcimicrobial origin. Possible mechanisms of peloid formation, the mode of life of calcispheres and their role in the accumulation of Paleozoic lime mud are discussed. Mass occurrences of peloids and calcispheres are characteristic features of the Choteč Formation (Eifelian, costatus-kockelianus conodont zones). It is concluded that specific environmental conditions, such as a higher nutrient load, existed during the sedimentation of this unit, probably in response to the Basal Choteč event.
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
Import date
    15. 10. 2014