Late Weichselian pollen stratigraphy, clay-varve chronology, radiocarbon chronology, and palaeomagnetic secular variations at Farslycke, Blekinge, southern Sweden

Abstract

Pollen analysis, AMS ¹⁴C measurements and varve counting, carried out on a sequence of Late Weichselian lacustrine sediments in Blekinge in southeastern Sweden, show that the area was deglaciated during the middle part of the B⊘lling, at c. 12,500 ¹⁴C years BP + c. 200 varve years. This date fits well with the regional deglaciation chronology. The deglaciation was accompanied by a typical late glacial vegetation succession. The varve chronology for the site is correlated to the regional chronology for Blekinge, and the ice recession rate is calculated to c. 100 m/year. The palaeomagnetic secular variation analyses show a characteristic westerly declination swing at c. 11,500-10,300 ¹⁴C years BP, which is in accordance with curves from other sites in southern Sweden.

Keywords:

• Late Weichselian
• lake sediments
• pollen stratigraphy
• clay-varve chronology
• AMS radiocarbon chronology
• palaeomagnetic secular variations
• Blekinge
• Sweden