Record details

Title
    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
Author
    Bosák, Pavel
    Carew, J. L.
    Geršl, M.
    Hladil, Jindřich
    Mylroie, J. E.
    Slavík, Ladislav
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Carbonates and Evaporites
Vol./nr.
    Roč. 18, č. 2
Pages
    s. 89-107
Year
    2003
Notes
    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
    diagenesis
    platform carbonates
    well-logging
Keyword
    Boundaries
    Cycle
    Early
    Fe
    Fixation
    Gamma-ray
    Limestones
    Magneto-susceptibility
    Origin
    Patterns
    Platform
    Pragmatic
    Pure
    Related
    Sedimentary
    Spectrometric
    Test
    Th
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.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012