Fossil ice wedges

Alternative definitions (1), class: vernacular (0)
Term: Fossil ice wedges
Definition: Sedimentary structures of past episodes that show ancient wedges, which have been filled by sediments and ice preserving the original cryogenic form. Fossile ice wedges are an indicator for mean annual paleotemperatures between -3.5 and -8C depending on the host material.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary