Nonsorted Circle

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_509-1

Definition

Fine-grained material accumulated in circle or small circular buttes.

Category

Synonyms

Description

Circular features in periglacial zones on Earth (French 1996) with areas of heaves and troughs (Fig. 1). Their interior is characteristically vegetation-free or partially vegetated; however, they are usually surrounded by dense vegetation (Daanen et al. 2008; Raynolds et al. 2008) (e.g., tussocks, lichens, peat). Sometimes they display regular involution (festooning) (Allaby 2008).

Keywords

Convection Advection 
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References

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Laboratoire de Planétologie et Géodynamique de NantesUniversité de Nantes/CNRS UMR6112NantesFrance