Mineral magnetic characterization of the Upper Pleniglacial Nussloch loess sequence (Germany): an insight into local environmental processes ...

• Main Authors: Prud’homme, Charlotte, Lécuyer, Christophe, Antoine, Pierre, Hatté, Christine, Moine, Olivier, Fourel, François, Amiot, Romain, Martineau, François, Rousseau, Denis-Didier
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Columbia University 2014
• Subjects: Paleomagnetism; Geomagnetism; Rocks > Magnetic properties; Loess > Environmental aspects; Tundra
• Online Access: https://dx.doi.org/10.7916/d88353xs; https://academiccommons.columbia.edu/doi/10.7916/D88353XS

Presently, most loess/palaeosol magnetic susceptibility records are interpreted as following either the wind-vigour model or the pedogenic enhancement model. However redoxomorphic processes induced by waterlogging, often referred to gleying in the loess literature, are also known to alter loess deposits but their impact on loess/palaeosol magnetic susceptibility records has received little attention. The reported rock magnetic study aims to characterize the mineral magnetic response of loess to waterlogging-induced redoxomorphic processes, thus improving our understanding of mineral magnetic changes within loess deposits with respect to environmental and climate conditions. The Nussloch loess-palaeosol deposit (Rhine Valley, Germany) was targeted because it is one of the best-studied Pleniglacial deposits for Western Europe in which numerous tundra gley intervals have been identified. Moreover, a comprehensive high-resolution environmental magnetism study has never been undertaken for this site. Various rock ...