Record details

    Early Weichselian dust storm layer at Achenheim in Alsace, France
Statement of responsibility
    Denis-Didier Rousseau, George Kukla, Ludwig Zöller, Janka Hradilová
    Hradilová, Janka
    Kukla, George
    Rousseau, Denis-Didier
    Zöller, Ludwig
Source title - serial
    Vol. 27, no. 3
    p. 200-207
    5 obr., 2 s.bibl.
    Zkr. název ser.: Boreas
Subject group
    datování C14
    kvartér Českého masivu
    magnetická susceptibilita
    půda fosilní
    vůdčí horizont
Geographical name
    Evropa střední
Abstract (in english)
   The cause of the rapid transition from lush grasslands and woodlands of the early Glacial interstadial to Pleniglacial barrens in Europe is still a mystery. In the loess sections of Bohemia and Austria this transition is associated with thin layers of fine-grained airborne dust known as "markers", believed to be deposited by major continental-scale dust storms. Here we present evidence that a similar, sharply delimited layer with a minimum TL age of 64.9 6.9 ka separates the autochtonous humus steppe soils from abiogenic sediments of the Achenheim 1 pedocomplex in France. The soil complex has been previously correlated on pedostratigraphic grounds with marine oxygen isotope stage (MIS) 5. Given its age and stratigraphic position, the dust layer correlates with the PKII marker in Bohemia.
   The recognition of a marker in Achenheim suggests that the development of the early Glacial steppe soils ended abruptly not only in central Europe, but also in Alsase, France, prior to 65 ka, possibly as a result of a single continental-scale dust storm
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    28. 1. 2008
Import date
    8. 8. 2012