Recent patterned grounds development on a glacier surface (dovrefjell, central norway): an ephemeral periglacial activity in a paraglacial context

Abstract

Researches carried out on the main glacier of the Dovrefjell massif, Scandes Mountains, Norway (62° N; 9° E) point to recent periglacial features which are presently directly developed on the ice. This original location raises the problem of their morphodynamic significance and a hypothesis of ephemeral periglacial activity in a paraglacial context is proposed here.

Characteristics and altitudinal distribution of periglacial decay phenomena in the massif of rondane, central norway

“…The summits of Rondane receive less than 700 mm per year while those of Jotunheimen receive more than 2500 mm per year, with snow representing approximately 30% of the precipitation and the duration of the snow‐cover being from 5 to 6 months per year (Sellier ; Norsk Meteorologisk Institutt data for the period 1981–2013). Thus, the amount of precipitation suggests that this meteorological station comes close to a “maritime subpolar type,” like the massif of Dovrefjell (Kerguillec ).…”

“…; Ballantyne and Matthews , ; Krüger ; Matthews et al . ; Dabski and Gryglewicz ; Haugland , ; Kerguillec , ) and these initial forms reveal periglacial processes involving the vertical mobility of the periglacial belt (Kerguillec ). The same remark can be made about periglacial decay phenomena but most studies have focused on the decay of palsas peatlands in Scandinavia (Sollid and Sørbel , ; Lie ; Nilhén ; Zuidhoff and Kolstrup ; Zuidhoff , ; Hofgaard ; Oksanen ; Fronzek et al .…”

Evidence of glacier-permafrost interactions associated with hydro-geomorphological processes and landforms at Snøhetta, Dovrefjell, Norway

“…The landscape history of the glaciated basins flanking the Snøhetta peak is indeed characterised by erosion, weathering and adjustment processes after the regional Late Weichselian glacier maximum as well as local glacial retreat since the Little Ice Age. Landforms emerging from periglacial fragmentation and sorting dominate the landscape especially stretching along the eastern plain below the Snøhetta massif Sellier 2002;Kerguillec 2011;Sellier 2012, 2021;Kerguillec 2013Kerguillec , 2014aKerguillec , 2014bKerguillec , 2014c.…”