Record details

Title
    Relationships between magnetic susceptibility of limestones and sea level change ("direct relationship and major crises on the Earth")
Author
    Bábek, O.
    Geršl, M.
    Hladil, Jindřich
    Koptíková, Leona
    Schnabl, Petr
    Slavík, Ladislav
    Vacek, F.
Conference
    International Geological Congress (33. : 06.08.2008-14.08.2008 : Oslo, Norsko)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    ICP Information Newsletter. CD-ROM edition
Pages
    Roč. 34, 4/6 (2008), s. 1343596-1343596
Notes
    Online varianta : http://www.cprm.gov.br/33IGC/1343596.html [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
    impurity
    limestone
    magnetic suceptibility
    ocean-atmosperic circulation
    past global crises
Keyword
    Change
    Crises
    Direct
    Earth
    Level
    Limestones
    Magnetic
    Major
    Relationship
    Relationships
    Sea
    Susceptibility
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.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012