Upper Late Weichselian lithostratigraphy in western Skåne, southernmost Sweden

Abstract

Different methods have been used to produce a new informal upper Late Weichselian lithostratigraphy for western Skäne. Special attention is payed to the genesis of the uppermost diamicton, the Malmö till, which was formed during the Low Baltic readvance. The different opinions about the latter unit and the existence of the Low Baltic ice stream are discussed. The lithostratigraphy related to the shoreline displacement during the Late Weichselian and to the outbursts of the Glacial Lake Vomb during the final deglaciation is shown. The 100 years old finds of the arctic codfish (Boreogadus saida) in the Lomma clay is ¹⁴C dated and the most reliable age is 13,700 B.P. The expected age was 12,800–13,000 B.P. The latter age is calculated from the shore displacement curve and corresponds to the final deglaciation at the beginning of the Bölling chronozone.

Key Words:

• Late Weichselian
• lithostratigraphy
• Skäne
• Sweden
• Low Baltic ice stream
• Glacial Lake Vomb
• Boreogadus saida