Structure and genesis of a buried ice-pushed zone near Rold (Funen, Denmark)

Abstract

In the Rold area indications have been found for two subsequent Weichselian ice transgressions: an older one from the SE and a younger one from the N or NE. The older ice advance could be inferred from the presence of partly buried and distorted glacial sediments which are exposed in four sand and gravel pits. The steeply tilted and strongly folded beds share an almost identical NW vergence at all four sites the farthest of which are 2 km apart. Where buried the distorted glaciofluvial beds are unconformably overlain by fine-textured glaciolacustrine deposits, ill-sorted solifluction material or both. The younger glacierization phase is evidenced by both oriented surface features with roughly NW-SE trend and by scattered glaciolacustrine surface deposits. Together these two phenomena appear to form a time-correlative complex of deglacial origin. Various glacitectonic classes are discussed in older to evaluate the ice-push event associated with the older ice transgression.