Record details

    A pragmatic test of the early origin and fixation of gamma-ray spectrometric (U, Th) and magneto-susceptibility patterns (Fe) related to sedimentary cycle boundaries in pure platform limestones
    Bosák, Pavel
    Carew, J. L.
    Geršl, M.
    Hladil, Jindřich
    Mylroie, J. E.
    Slavík, Ladislav
Publication type
    článek v odborném periodiku
Source title - serial
    Carbonates and Evaporites
    Roč. 18, č. 2
    s. 89-107
    Projekt: G-102, Ministry of Agriculture of the Commonwealth of The Bahamas, BS
    Projekt: IAA3013209, GA AV ČR
    Projekt: IAA3013809, GA AV ČR
    Rozsah: 19 s.
    Výzkumný záměr: CEZ:AV0Z3013912
Subject category
    platform carbonates
Abstract (in english)
   The vertical sections across depositionary cycle boundaries of platform carbonates (Late Pleistocene) as well as sub-horizontal quadrates provided data about vertical and horizontal variability of magnetic and natural gamma-ray values. The observed variations of magnetic susceptibility and gamma-ray spectrometric values about U and Th concentrations are dominated by regular or conformable characteristics, which correspond to early diagenetic effects on paleosols-protosols (directly at the boundary), development of separate cementation zone (below this boundary) and sedimentation-diagenetical parameters above the flooding surface (above this boundary). Comparison of these geophysical log patterns in ancient and modern carbonate platform sediments provided an evidence about early origin and fixation of these patterns.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    8. 8. 2012