Record details

    Relationships between magnetic susceptibility of limestones and sea level change ("direct relationship and major crises on the Earth")
    Bábek, O.
    Geršl, M.
    Hladil, Jindřich
    Koptíková, Leona
    Schnabl, Petr
    Slavík, Ladislav
    Vacek, F.
    International Geological Congress (33. : 06.08.2008-14.08.2008 : Oslo, Norsko)
Publication type
Source title - monograph
    ICP Information Newsletter. CD-ROM edition
    Roč. 34, 4/6 (2008), s. 1343596-1343596
    Online varianta : [cit. 2008-10-17]
    Projekt: IAA300130702, GA AV ČR
    Projekt: KJB300130613, GA AV ČR, CZ
    Projekt: KJB307020602, GA AV ČR
    Překlad názvu: Vztahy mezi magnetickou susceptibilitou vápenců a změnami výšky mořské hladiny ("přímá úměrnost v průběhu hlavních pozemských krizí")
    Rozsah: 1 s. : CD-ROM
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    magnetic suceptibility
    ocean-atmosperic circulation
    past global crises
Abstract (in english)
   It was extensively documented for the mid-Paleozoic and Recent limestones that the rise of sea level causes decreased magnetic susceptibility (MS) of these sedimentary rocks. The sea level dop causes just the opposite. The general rule is that large areas of emerged continents (in conditions of low sea level) give a chance to increased detritism and transport. Consequently, also the eolian and riverine flux of fine and ultra-fine particulates becomes strong. Conditions around the low stand are also connected with low carbonate accretion rates. Thus, the links like "LST & high MS" are normal, and the latter is often combined with cooling. However, the situation around major environmental crises is set conversely. The sea level lowering before the crisis is marked by low MS but the subsequent rise by high MS (a lot of impurity). It is explained by anomalous calm and then stormy ocean-atmospheric crisis systems, with low and high solar radiation.
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
Import date
    8. 8. 2012