Weichselian Convolution Phenomena and processes in fine sediments.

• Published in: Boreas
• Main Authors: VANDENBERGHE, JEF, BROEK, PETER VAN DEN
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1982
• Subjects: permafrost
• Online Access: http://dx.doi.org/10.1111/j.1502-3885.1982.tb00539.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1982.tb00539.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1982.tb00539.x

In three excavations in the southern Netherlands and northern Belgium, the Weichselian convolutions in fine sand, silt and clay deposits were investigated, and an attempt was made towards a semi‐quantitative approach to some sediment parameters. This, together with a detailed field survey, enabled interpretation of the deformations as forms of periglacial loadcasting. They originated from the time of permafrost degradation when large quantites of water were available. The amplitude of the involutions can be related to the depth of the permafrost table at that time. During the weichselian, two periods occurred in which this involution process could have been active