Observations on aerial photos of periglacial structures in the central Ardennes

Authors

  • Jean-Paul Donnay Laboratory of Geology and Physical Geography, University of Liège, Belgium
  • Paul Macar Laboratory of Geology and Physical Geography, University of Liège, Belgium
  • Andre Ozer Laboratory of Geology and Physical Geography, University of Liège, Belgium
  • Albert Pissart Laboratory of Geology and Physical Geography, University of Liège, Belgium

DOI:

https://doi.org/10.26485/BP/1976/26/13

Keywords:

periglacial deposits, circular structures, cryoturbations

Abstract

Article in French.

ORIGINAL TITLE: Observations sur photos aériennes de structures périglaciaires en Ardenne centrale

On aerial photographs of the uplands of Belgium, there are groups of circular markings whose mean diameter is 15 m. In depth these circles correspond to pockets of silt bounded by large cryoturbations which bring almost to the sur face material derived from the underlying Devonian slates.

References

Alexandre, J., 1957 – La restitution des surfaces d’aplanissement tertiaire de l’Ardenne centrale et ses enseignements. Ann. Soc. Géol. Belg., 81; p. M333-423.

Cailleux, A., 1973 – Coups de froid postglaciaires dans l’Est du Canada. Cahiers Géologiques, Paris, 89; p. 10-15.

Donnay, J., 1973 - Les photos aériennes comme moyen d'étude de la région de Bastogne. Etude de géographie physique. Mémoire de licence, Université de Liège, Inédit, 102 p.

Gullentops, F., 1954 - Contribution à la chronologie du Pléistocène et des formes du relief en Belgique. Mém. Inst. Géol. Univ. Louv., 18; p. 125-252.

Svensson, H., 1964 - Aerial photographs for tracing and investigating fossil tundra ground in Scandinavia. Biul. Peryglacjalny, 14; p. 321-325.

Veličko, A. A., 1972 - La morphologie cryogène relicte: caractères fondamentaux et cartographie. Zeitschr. f. Geomorph., Supplbd., 13; p. 59-72.

Williams, R. B. G., 1964 - Fossil patterned ground in Eastern England. Biul. Peryglacjalny, 14; p. 337-349.

Washburn, A. L., 1973 - Periglacial processes and environments. Edward Arnold Ltd, Hill Street, 25, London; 320 p.

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Published

2025-11-28

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