Summary
The superficial deposits occuring within the mapped area are classified according to their genesis. Finegrained marine sediments are the dominating deposits. The map covers one of the biggest Preboreal glaciofluvial icefront deltas in Norway - the Hauerseter deposit. A silt layer - The Romeriksmjele - covering maine sediments, has been found to be a flood deposit settled during a Preboreal catastrophic flood. Iceflow direction has varied from SE to SV most likely being SV during maximum glaciation and during a late stage of deglaciation. Sealevel was 205 m a.s.l. during the Hauerseter event c. 9,500 BP and 150-160 m a.s.l. approx 9,200 BP. The clay deposits are severely dissected by river- and creek erosion and quick clay slides.
