Glossary of landform and geologic terms. 2013.
frost boil — frost′ boil n. can. a frost heave • Etymology: 1950–55 … From formal English to slang
Frost boil — Mud boils near Lapporten, Sweden Frost boils (also known as mud boils, frost scars and mud circles [1]) are upwellings of mud that occur through frost heave and cryoturbation in permafrost areas, such as arctic and alpine regions. They are… … Wikipedia
frost boil — noun : a defective spot in the surface of a pavement due to the pulverizing and swelling action of frost … Useful english dictionary
Frost weathering — A rock in Abisko fractured (along existing joints) possibly by mechanical frost weathering or thermal stress Frost weathering is a collective name for several mechanical weathering processes induced by stresses created by the freezing of water… … Wikipedia
frostboil — frost boil n. Upper Midwest See frost heave. * * * … Universalium
frostheave — frost heave n. New England A section of ruptured pavement caused by the expansion of freezing water immediately under the road. Also called frost boil. * * * … Universalium
Drunken trees — Not to be confused with the floss silk tree, also known as the drunken tree or palo borracho. A drunken forest in Siberia caused by melting permafrost. NASA photo. Drunken trees, tilted trees, or a drunken forest, is a stand of trees displaced… … Wikipedia
Cryoturbation — Asphalt damaged by cryoturbation, or freezing of groundwater In gelisols (permafrost soils), cryoturbation (frost churning) refers to the mixing of materials from various horizons of the soil right down to the bedrock due to freezing and thawing … Wikipedia
nonsorted circle — A type of patterned ground whose mesh (shape) is dominantly circular and has a nonsorted appearance due to the absence of a border of rock fragments. Vegetation characteristically outlines the pattern by forming a bordering ridge. Diameters… … Glossary of landform and geologic terms
Permafrost — This article is about frozen ground. For other uses, see Permafrost (disambiguation). In geology, permafrost, cryotic soil or permafrost soil is soil at or below the freezing point of water (0 °C or 32 °F) for two or more years. Ice is not always … Wikipedia
