An ice-margin oscillation during the Late Weichselian in the Lake Vänern area, SW Sweden

Abstract A Late Weichselian ice-margin oscillation close to the Levene moraine, SW Sweden, has been detected by means of detailed litho- and biostratigraphic investigations, complemented with geotechnical data. The two localities investigated, Tyskahagen and Satenas, are situated a few hundred metres, respectively south and north, from the Levene moraine. A varying sediment composition with fine-grained sediments, layers of friction material, boulders/boulder-clay and a strongly over-consolidated clay is assumed to be a result of at least one distinct ice-margin readvance at the locality Satenas. The readvance took place over previously deposited sediments. The result is compressed sediment sequences and stratigraphic disturbances of a very local nature. The event discussed took place in a glacio-marine depositional environment in the Lake Vanern estuary, with water depths of about 40–80 m.