oa Formation of Deep Glacial Incisions During the Elsterian in NW-Europe

More than 100 year ago German geologists encountered Quaternary deposits, deeply incised into Tertiary formations in the northern part of their country. As, in contrast to the Tertiary units, the incisions contained coarse sands containing good quality ground water these were unique targets for the extraction of drinking water. Although over the last century much information has been collected from boreholes, doubts remained over the mechanism responsible for the formation of the incisions.