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Bjørn A. Follestad: Glacial geology in the Lesja and Nesset areas, Northwestern Norway

Bjørn A. Follestad: Glacial geology in the Lesja and Nesset areas, Northwestern Norway. Vinterkonferansen i Bergen 13. – 15. januar 2009. Bergen. Lesja – Nesset - Dovre. Trollheimen. Nesset. Åndalsnes. Lesja. Dovre. Rondane. Jotunheimen. Ottadalen. Profiles through the valleys.

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Bjørn A. Follestad: Glacial geology in the Lesja and Nesset areas, Northwestern Norway

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  1. Bjørn A. Follestad: Glacial geology in the Lesja and Nesset areas, Northwestern Norway Vinterkonferansen i Bergen 13. – 15. januar 2009 Bergen

  2. Lesja – Nesset - Dovre Trollheimen Nesset Åndalsnes Lesja Dovre Rondane Jotunheimen Ottadalen

  3. Profilesthrough the valleys

  4. Lateral moraines south-western parts of Lesja

  5. Reconstruction of the glacier marginduring YD in the southwestern parts of Lesja

  6. Lateral moraines north of Lesja

  7. Reconstruction of the glacier marginduring YD in the northern parts of Lesja

  8. Follestad, B. A. & Fredin, O. 2007: Late Weichselian ice flow evolution in south-central Norway. Norwegian Journal of Geology, Vol. 87, pp. 281-289.Trondheim 2007. ISSN 029-196X. • Meltwater run off • 10,080 cal yr BP Ronvatnet (1167 m a.s.l) • Ice movements during and after YD • 12,800 -12,900 cal yr BP Tautra • 12,080 – 12,360 cal yr BP Hoklingen • Orkla advance (12,080 – 12,360 cal yr BP Hoklingen) • Early lateglacial • Preboreal ?

  9. Nordøsterdalsmuseet , Museumssentret Ramsmoen ,Kongsveien 6, N-2500 Tynset Conclusion: • Two (re)advances in YD are mapped and might be correlated to (re)advanses in Trøndelag • 12,800 -12,900 cal yr BP Tautra • 12,080 – 12,360 cal yr BP Hoklingen (=Kongsvolltrinn in the Hjerkinn area as shown by Follestad (2003)) • During YD maximum the surface of the inland ice was some 1800 m a.s.l. in Ottadalen Valley; the snow line some 1560 m a.s.l. north of Lesjaskog.

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