earth hummock
Link: http://w3id.org/permafrost/v/ipaglossary/t0094
Within: IPA Permafrost Glossary
Definition: A hummock having a core of silty and clayey mineral soil which may show evidence of cryoturbation (see Figure 20a, b).
| Term |
earth hummock
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| Comment |
Earth hummocks are a type of nonsorted circle (see also patterned ground) commonly found in the zone of continuous permafrost. They develop in materials of a high silt and clay content and/or of high ice content. Earth hummocks found outside the southern limit of present-day permafrost are believed to have formed during a previous period of cooler climate when the area was underlain by permafrost.
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| dcterms:source |
https://doi.org/10.4224/20386561
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mud hummock
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tundra hummock
en
earth mound en |