Record details

Title
    Magnetostratigraphy of Cave Sediments: Application and Limits
Author
    Bosák, Pavel
    Kadlec, Jaroslav
    Pruner, Petr
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Studia geophysica et geodaetica
Vol./nr.
    Roč. 47, č. 2
Pages
    s. 301-330
Year
    2003
Notes
    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
    magnetostratigraphy
Keyword
    Application
    Cave
    Limits
    Magnetostratigraphy
    Sediments
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.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012