gélifluxion

OBS: Ce processus affecte les versants couverts par la toundra ou la pelouse du domaine ou de l'étage périglaciaires.
OBS: La saturation des matériaux argileux est obtenue avec une fréquence particulière sous les climats périglaciaires (où l'on parle de gélifluxion), car, lors du dégel, les lentilles de glace libèrent une grande quantité d'eau. Toutefois, en raison des multiples possibilités d'apport d'eau (précipitations, fusion nivale, nappe phréatique, etc.), la solifluxion s'observe sous toutes les latitudes.

OBS: The process of debris movement in periglacial regions has been variously defined and a number of terms have been suggested. First J.G. Anderson (1906) proposed the term ""solifluction"" (solum-soil, fluere-flow) for slow movement of debris, soaked with water, from higher to lower slopes. Solifluction term was replaced by ""congelifluction"" of J. Daylik (1951) to incorporate only soilflow in the periglacial climate having permafrost lying below an active layer. K. Bryan (1946) used the term ""cryoturbation"" which included all types of mass-movement of regolith under periglacial environment. Recently, ""gelifluction"" is used in place of ""congelifluction.""
OBS: Gelifluction only occurs in areas of permafrost, in contrast to solifluction, and may give rise to gelifluction flats and gelifluction terraces.