Sea cliff at Glowe: stratigraphy and absolute age chronology of the Jasmund Pleistocene sedimentary record

Abstract

Abstract. Four remarkable Pleistocene cliff outcrops scattered across the peninsula of Jasmund exhibit the dynamics of the Scandinavian Ice Sheet during the Weichselian glaciation in this area. The investigated sites display up to 30 m thick sequences of glacial tills with intercalated (glaci)fluvial to (glaci)lacustrine sediments. Based on detailed lithofacies analyses and a physical age chronology, we trace the reconstruction of the depositional sequences and their corresponding stratigraphic position within the Weichselian record.

Age assessment of the Jasmund Glacitectonic Complex (SW Baltic Sea) by quartz luminescence dating of syn-kinematic deposits

“…Forming the top section of the outcrop, the M3 till displays a MIS 2 re-advance of the late Weichselian (post-LGM, Pomeranian/Mecklenburgian phase, Niedermeyer et al 2010;Kenzler et al 2010Kenzler et al , 2017. At the base of the M3 complex, the main glacitectonic angular unconformity (GAU, Kenzler et al 2023) is located, separating the whole sequence in pre-(plus locally syn-) and post-kinematic glacitectonic strata (Fig.…”

The Quaternary sequence of Mecklenburg-Western Pomerania: areas of specific interest and ongoing investigations

“…The age of main ice advances and minor fluctuations have been reconstructed by luminescence dating in combination with lithostratigraphic, sedimentological and micromorphological investigations of the (glacio-)fluvial, lacustrine and aeolian deposits (e.g. Steinich, 1992;Panzig, 1995;Ludwig, 2006;Müller and Obst, 2006;Kenzler et al, 2017;Kenzler and Hüneke, 2019). The microfabrics within the tills laid down by the SIS have been studied by means of two-and three-6 A. Börner et al: The Quaternary sequence of Mecklenburg-Western Pomerania dimensional analyses based on the microstructural mapping, which enables the identification and interpretation of the successive generations of fabrics in terms of a progressive, polyphase deformation history (Brumme, 2015;Brumme et al, 2019;Gehrmann et al, 2017Gehrmann et al, , 2019Mehlhorn et al, 2019).…”

Micromorphology and clast microfabrics of subglacial traction tills at the sea cliff Dwasieden: evidence of polyphase syn- and post-depositional deformation

“…The Pleistocene sedimentary sequence exposed at Dwasieden is representative of Jasmund (see Kenzler et al, 2019). The late Cretaceous chalk observed at the base of the cliff is overlain by three Pleistocene till units (M1, M2 and M3), which are interbedded by gravels, sands and silt-clay rhythmites (units I1 and I2) ( Fig.…”

“…Pisarska-Jamroży et al (2018a) concluded that the upper part of the I1 unit must have been deposited between 22.7±1.9 and 19.0±2.3 ka, i.e. shortly before the first late Weichselian ice advance reached the Jasmund peninsula (see Kenzler et al, 2017;Kenzler et al, 2019). Thus, the M2 till that directly overlies the I1 sedimentary record is thought to represent the Brandenburgian advance phase of the ice sheet during the Last Glacial Maximum (LGM).…”