Study of an exposed section in the loess of Ans (near Liège). Periglacial structures and frost cracks
DOI:
https://doi.org/10.26485/BP/1981/28/30Keywords:
loess, ice wedge nets, unsorted polygons, earth hummocksAbstract
Article in French.
ORIGINAL TITLE: : Ètude d'une coupe degagée dans les loess d'ans (près de Liège). Structures périglaciaires et fentes de gel
The brick-pit at Ans contains evidence for tlhe existence of three nets of ice wedges in the course of the last glaciation. The date of the growth of these ice wedges cannot be determined precisely but it is elear that two developed before, and the third after, the formation ofthe Kesselt soil (Arcy-Stillfried B). Unsorted polygons and earth hummocks have been recognized in loess older than the Arcy-Stillfried B interstadial.
References
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Juvigne, E., 1977a - Les minéraux denses transparents des loess de Belgique. Ztschr. f. Geomorphologie, 22; p. 68-88.
Juvigne, E., 1977b - Zone de dispersion et âge des poussières volcaniques du tuf de Rocourt. Ann. Soc. Géol. Belgique, 100; p. 13-22.
