Deglaciation and drainage-pattern development in the eastern Uckermark, Brandenburg, Germany

• Main Author: Boer, Wierd Mathijs de
• Other Authors: Wutzke, Ulrich
• Format: Article in Journal/Newspaper
• Language: English
• Published: Humboldt-Universität zu Berlin 2015
• Subjects: Uckermark; eastern Uckermark; Welse South Ice Margin; Welse North Ice Margin; Welse; Randow; Oder; Welse Valley; Randow Valley; Oder Valley; Schönow-Tantow Valley; Salvey Stream; Ucker; Ücker; Angermünde Ice Margin; Zichow-Golm Ice Margin; Gerswalde Ice Margin; Penkun Ice Margin; Ucker Ice Margin; Rosenthal Ice Margin; Schwarze Berge; Weichselian; Late Weichselian; Holocene; glaciers; ice margin; push moraine; nunatak; glacial spillways; outwash plain; outwash terraces; Netze-Randow Ice-Marginal Valley; Schmölln- Grünz Glacier Mouth; Bagemühl Terrace; Meyenburg Terrace; Stendell Terrace; Schwedt Terrace; kame terraces; subglacial valleys; esker; varved clays; dead-ice holes; kettle holes; dunes; inland dunes; arable escarpments; Brandenburg; Mecklenburg-Vorpommerania; Germany; Penkun; Rosenthal; South Ice; Ice Sheet
• Online Access: http://edoc.hu-berlin.de/18452/18702; https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/18702-0; https://doi.org/10.18452/18038

After retreat from the Angermünde Ice Margin, the Weichselian inland ice sheet fell apart into different independently acting ice tongues in the eastern Uckermark. In this region (bordering Poland), between the Angermünde and Penkun Ice Margins only the Schönermark Intermediate Ice Margin has been described before. This paper postulates two more ice margins: a Welse North Ice Margin and a Welse South Ice Margin. The Welse South Ice Margin is a ridge in the area northwest and south of the Welse stream (lower course) and can be followed over the villages Zehnebeck - Wendemark - Passow - Herrenhof - Berkholz. The Welse South Ice Margin is seen as a possible simultaneous continuation of the Zichow-Golm Ice Margin. Subglacial valleys developed, but unique drainage paths and sander at the Zichow-Golm Ice Margin and at the Welse South Ice Margin could not be found. In the area of Wartin - Schönow - Kunow - Hohenfelde a distinct ridge can also be seen, here named Welse North Ice Margin. It is conceived as a possible simultaneous continuation of the Gerswalde Ice Margin. An exposure in the gravel pit south of Kunow shows exemplary the different push phases of the inland ice and periglacial phenomena in this area. The main meltwater direction was from north to south and between Wartin and Blumberg a sander terrace was formed at a level of 50 - 60 m above NHN in the Randow Valley. Nach Auflösung der Angermünder Eisrandlage kam es im Weichselspätglazial zu verschiedenen unabhängig voneinander wirken- den Gletscherzungen in der östlichen Uckermark. Zwischen der Angermünder Staffel und der Penkuner Staffel ist bisher nur der Schönermarker Zwischenstaffel beschrieben worden. In dieser Arbeit werden zwei weitere Eisrandlagen postuliert: eine Welsesüdrandlage und eine Welsenordrandlage. Die Welsesüdrandlage ist ein Höhenzug im Raum nordwestlich und südlich des Welse-Flusses und ist über die Orte Zehnebeck - Wendemark - Passow - Herrenhof - Berkholz zu verfolgen. Sie wird als eine Art (und möglich zeitgleiche) Fortsetzung der ...