closed-system pingo
Link: http://w3id.org/permafrost/v/ipaglossary/t0037
Within: IPA Permafrost Glossary
Definition: A pingo formed by doming of frozen ground due to freezing of injected water supplied by expulsion of pore water during permafrost aggradation in the closed talik under a former water body (see Figures 18 and 19a).
| Term |
closed-system pingo
en
|
|---|---|
| Comment |
Most closed-system pingos are found in flat, poorly-drained terrain in the zone of continuous permafrost. Repeated injections of expelled water into the overlying permafrost, followed by freezing of the injected water, cause progressive doming, and produce the massive ice forming the core of the pingo. Progressive formation of segregated ice and dilation crack ice can also contribute to the process.
en
|
| dcterms:source |
https://doi.org/10.4224/20386561
xsd:anyURI
|
| skos:altLabel |
hydrostatic pingo
en
|
| skos:hiddenLabel |
Mackenzie Delta pingo
en
|