wedge ice
Link: http://w3id.org/permafrost/v/ipaglossary/t0393
Within: IPA Permafrost Glossary
Definition: Ice occurring in an ice wedge (see Figure 17).
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wedge ice
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| Comment |
Wedge ice comprises a series of ice veins formed in thermal contraction cracks at the same location over a period of time. The ice is vertically to subvertically banded and may be discoloured by sediments and contain air bubbles that tend to be arranged in nearly vertical bands. The presence of many small bubbles may give the ice a milky appearance. Individual bands of ice are a few millimetres to a centimetre in width.
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| dcterms:source |
https://doi.org/10.4224/20386561
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