Based on grain-size distributions, fabrics, fossil molluscs, pollen contents, plant macrofossils and radiocarbon dating, a glacial history is proposed: 1) The area was deglaciated during the Bølling or Older Dryas Chronozone. Molluscs indicate the presence of Atlantic water; 2) During the late Allerød or early Younger Dryas Chronozone there was a glacial readvance. A surge mechanism is proposed for this readvance; 3) The glacier front retreated during the early Younger Dryas Chronozone to the fjord-mouth where it remained for several hundreds of years. Atlantic water was replaced by cold polar water.
Late Weichselian Stratigraphy at Hjelmeland, Southwest Norway