A relict sand-wedge polygon site in north-central Hungary

Relict sand-wedge polygons are described from palaeosol and gravel deposits in the Mogyorod area, Hungary. Based on previously reported periglacial features, the local glacial history and optically stimulated luminescence (OSL) dates, these features suggest that the Pannonian Basin was underlain by permafrost during the Late Pleniglacial (22 000-18 000 years ago) and that the permafrost may have been continuous. Copyright (C) 2007 John Wiley & Sons, Ltd.