Authors
Valentin Burki, Eiliv Larsen, Ola Fredin, Aninna Margreth
Publication date
2009/4/15
Journal
Geomorphology
Volume
105
Issue
3-4
Pages
182-192
Publisher
Elsevier
Description
The forefield of the Bødalsbreen glacier, western Norway, exhibits a prominent set of end moraines. The outermost one, deposited at the Little Ice Age (LIA) maximum (A.D. ∼1755), is smooth, continuous and arcuate, thus reflecting an even ice front. In contrast, subsequently formed moraines (deposited A.D. ∼1767–1930) show a striking “sawtooth” morphology. In an attempt to elucidate the formation processes responsible for this complex landform assemblage, we have employed several methods of investigation including geomorphological mapping, sedimentological studies, and ground penetrating radar (GPR). In general, the detailed formation processes of all moraines include bulldozing and thrusting. Furthermore, the sediment composition and structure are similar for all the moraines containing recycled diamicton. The remaining major factor influencing the moraine morphology thus seems to be the shape …
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