Some years ago a fossil lake basin was found in the northeastern part of the former Rhine-pied- mont-glacier, situated between the endmoraine system ofthe elassical Riß- andWürm glacia- tions, respectively. The lacustrine sediments contain the pollenflora ofthe Eemian interglacial. They are intensively thrusted. These sediments are eovered by a loam-layer, rieh in elasts. The thickness of this loam-layer varies between at least 170 and 400 cm. It consists in its major part of loess-loam and solifluction material. Yet just on top of the lake sediments mentioned an in- tensively compressed loam, characterized by quarzgrains with all features of glacially pressed material, together with striated elasts is met with. It strongly resembles atil!. Ifthis is true, the stratigraphie division ofthe last glaciation strongly deviates from the hitherto accepted scheme, incorporating an early glacier advance, long before the elassical young-endmoraine systems of the Würm glaciation were formed.
Supplement to: Frenzel, Burkhard (1991): Über einen frühen letzteiszeitlichen Vorstoß des Rheingletschers in das deutsche Alpenvorland. In: Frenzel, B (ed.), Klimageschichtliche Probleme der letzten 130 000 Jahre, Paläoklimaforschung, Akademie der Wissenschaften in der Literatur Mainz, Gustav Fischer Verlag, Stuttgart, New York, 1, 377-400, hdl:10013/epic.34694.d001
