Ichnofabric of loess sediments in the area north of Prague (Pleistocene to Recent, Czech Republic)

Geoscience Research Reports 35, 2002 (GRR for 2001), pages 53–55

Full text (PDF, 0.08 MB)

Abstract

Fossil traces (i.e. bioturbation contemporaneous with the origin of loess accumulations) are not frequent in the studied area. The transported substrate represents less than 10 per cent of the whole, and the displacement reached several centimetres at maximum. Preserved aeolian laminae document that the substrate was not totally reworked. Traces of root systems influenced at some places precipitation features (development of rhisoconcenretions and rni-crorhisoconcretions) rather than inducing mixing of the substrate. Modem traces in loess (insect, bird, and mammal burrows and feeding traces) do not substantially alter the loess stratigraphy.