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frost heave

frost heave(frost heaving) An upward movement of the ground surface or of individual particles, owing to the formation of lenses of ice up to 30 mm thick in the regolith. It reaches its maximum in silt-dominated material, in which the greatest volume of ice may develop (more than 68 per cent ice by volume). When the total uplift of the surface is measured, it is found to be approximately equal to the sum of the thicknesses of the layers of ice. Surface stones may be heaved by the development of needle-ice columns (‘pipkrakes’).

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"frost heave." A Dictionary of Ecology. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"frost heave." A Dictionary of Ecology. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/frost-heave-0

"frost heave." A Dictionary of Ecology. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/frost-heave-0

frost heave

frost heave (frost heaving) Upward movement of the ground surface or of individual particles, due to the formation of lenses of ice up to 30 mm thick in the regolith. It reaches its maximum in silt-dominated material, in which the greatest volume of ice may develop (more than 68% ice by volume). When the total uplift of the surface is measured, it is found to be approximately equal to the sum of the thicknesses of the layers of ice. Surface stones may be heaved by the development of needle-ice columns (‘pipkrakes’).

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"frost heave." A Dictionary of Earth Sciences. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"frost heave." A Dictionary of Earth Sciences. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/frost-heave

"frost heave." A Dictionary of Earth Sciences. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/frost-heave

frost heave

frost heave • n. the uplift of water-saturated soil or other surface deposits due to expansion on freezing. ∎  a mound formed in this way, esp. when broken through the pavement of a road. DERIVATIVES: frost heav·ing n.

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"frost heave." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 20 Oct. 2017 <http://www.encyclopedia.com>.

"frost heave." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (October 20, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/frost-heave

"frost heave." The Oxford Pocket Dictionary of Current English. . Retrieved October 20, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/frost-heave