Geomorphology and sedimentology of features formed at the outlet during the final drainage of the Baltic Ice Lake

We present a conceptual model for the character of 11.6 cal. ka BP drainage Baltic Ice Lake in outlet area based on new geomorphological map as well sedimentological information. combine this information with review previous work well-studied area. The includes premise remnant ice Lången valley suggested by workers and indicates began subglacially. Cobbly sediment northeast Billingen formerly interpreted beach is to be subglacial lag deposit. ridge at Timmersdala composed from initial phases drainage, deposited tunnel that emptied out central Klyftamon. Continued widened frictional melting, eventually lifting fracturing ice. Pendant bars, expansion bars boulder sheets southern Klyftamon formed during event. bouldery which massive poorly sorted, was bedload sediment-charged water. Imbrication, bar orientation, changes grain size Cambrian-clast content indicate flow west–northwest. Most derived erosion Klyftamon, but Cambrian rock present, delivered directly flood waters and/or debris-rich icebergs broken-up This event distinguished other Quaternary megafloods being sediment-supply limited having short, subaerial floodway (20 km).