How to cite:Hardt This thesis presents new geochronological and geomorphological data concerning Weichselian ice dynamics of the Scandinavian Ice Sheet for the northeast German lowland area. The largest Weichselian ice extent in Brandenburg (Brandenburg phase) occurred in the late marine isotope stage 3. The global Last Glacial Maximum is represented by the Pomeranian ice marginal position in Brandenburg ( ∼ 20 ka). Therefore, a 2-fold Last Glacial Maximum in Brandenburg, as previously proposed by Lüthgens and Böse (2011), is confirmed.For the first time, we determined optically stimulated luminescence (OSL) ages of glaciofluvial deposits associated with the Weichselian Frankfurt phase at a site in Ladeburg (central Brandenburg; Fig. 1). Furthermore, we report new OSL ages of glaciofluvial deposits from the lignite mine Jän-schwalde (southern Brandenburg), a key site regarding the Weichselian maximum extent during the Brandenburg phase. In combination with cosmogenic nuclide surface exposure ages of glacigenic boulders, which were collected from literature and recalibrated with an updated 10 Be production rate, a consistent process-based model of the Weichselian ice dynamics in Brandenburg was developed (Fig. 1).The ice advance of the Brandenburg phase was dated to 34.1 ± 4.6 ka. For the formation of the Brandenburg ice marginal position, a mean age of 30 ± 4 ka was determined at Jänschwalde. The succeeding meltdown during the so-called Frankfurt phase was dated to 26.3 ± 3.7 ka at Ladeburg. The subsequent landscape stabilization phase started at around 24 ± 2 ka in central Brandenburg, which was deduced by recalibrated exposure ages of glacigenic boulders (Hardt et al., 2016). These ages are corroborated by other published OSL ages from the region (Fig. 1).The recalibration of previously published cosmogenic exposure ages from glacigenic boulders with an up-to-date 10 Be production rate (Heyman, 2014) resulted in a considerable increase of the ages (9-15 %; Hardt and Böse, 2017). In combination, the OSL ages and the cosmogenic nuclide exposure ages now provide a consistent geochronology of the Weichselian ice dynamics in Brandenburg. The largest Weichselian ice extent during the late marine isotope stage 3 (Brandenburg phase) corresponds with the so-called Klintholm advance in Denmark (Houmark-Nielsen, 2010) and a possible ice advance in central Poland (Marks, 2012).Published by Copernicus Publications on behalf of the Deutsche Quartärvereinigung (DEUQUA) e.V.