Record details

    Magnetostratigraphy of Cave Sediments: Application and Limits
    Bosák, Pavel
    Kadlec, Jaroslav
    Pruner, Petr
Publication type
    článek v odborném periodiku
Source title - serial
    Studia geophysica et geodaetica
    Roč. 47, č. 2
    s. 301-330
    Projekt: EAR-9705718, GA AV ČR
    Projekt: GA205/95/0841, GA ČR
    Projekt: GA206/93/0276, GA ČR
    Projekt: IAA3013201, GA AV ČR
    Projekt: INT-950737, National Science Foundation, US
    Projekt: KSK1042603, GA AV ČR
    Projekt: KSK3046108, GA AV ČR
    Projekt: ME 251, GA MŠk
    Projekt: OU95051, GA MŠk
    Projekt: T 035004, Hungarian Scientific Research Fund (OTKA), HU
    Rozsah: 30 s.
    Výzkumný záměr: CEZ:AV0Z3013912
Subject category
    cave deposits
Abstract (in english)
   The application of the magnetostratigraphy for dating of clastic and chemogenic cave sediments has been limited by the complex conditions underground and the lack of age constraints on these deposits for correlation with geomagnetic polarity timescale (GPTS). Additionaly, the dynamic character of cave infilling, exhumation and fossilisation expressed by unconformities within preserved sedimentary profiles can hide a substantial part of the geological time. The detailed internal division of deposits (breaks in deposition and related processes) and scarcity of fossils make correlation of obtained magnetostratigraphic log with geomagnetic polarity timescales sometimes problematic. The analytical results confirmed that the complete step/field procedure offered by demagnetisation methods must be applied. The application of complete analysis only to pilot samples and shortened, selected field/step approach, to other samples did not offer sufficient data set for reliable interpretation.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    8. 8. 2012