cryogenic fabric
Link: http://w3id.org/permafrost/v/ipaglossary/t0052
Within: IPA Permafrost Glossary
Definition: The distinct soil micromorphology resulting from the effects of freezing and thawing processes (see Figure 8).
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cryogenic fabric
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The following cryogenic fabrics, found in cryosols, can be distinguished under a microscope: 1. granic and granoidic fabrics - soil particles form discrete loosely packed units. These fabrics are generally attributed to freeze-thaw processes and the formation of needle ice near the ground surface. 2. fragmic and fragmoidal fabrics - soil particles form discrete units that are either densely packed or coalescing. These fabrics commonly occur in subsurface soil horizons, usually close to the freezing front where soil material is subject to ice lens formation. 3. banded and isoband fabrics - soil particles form subhorizontal layers which result from freeze-thaw processes accompanied by eluviation. 4. orbiculic, suscitic and conglomeric fabrics - coarser soil particles form circular to ellipsoidal patterns (orbiculic), vertical or near-vertical orientation (suscitic), and compound arrangements (conglomeric), probably as a result of cryoturbation activity.
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https://doi.org/10.4224/20386561
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