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- Q13414854 subject Q7037549.
- Q13414854 subject Q7066307.
- Q13414854 abstract "Ice segregation is the geological phenomenon produced by the formation of ice lenses, which induce erosion when moisture, diffused within soil or rock, accumulates in a localized zone. The ice initially accumulates within small collocated pores or pre-existing cracks, and, as long as the conditions remain favorable, continues to collect in the ice layer or ice lens, wedging the soil or rock apart. Ice lenses grow parallel to the surface and several centimeters to several decimeters (inches to feet) deep in the soil or rock. Studies between 1990 and present have demonstrated that rock fracture by ice segregation (i.e., the fracture of intact rock by ice lenses that grow by drawing water from their surroundings during periods of sustained subfreezing temperatures) is a more effective weathering process than the freeze-thaw process which older texts proposed.Ice lenses play the key role in fracture of bedrock and frost induced heaving of soils, which are fundamental to weathering in cold regions. Frost heaving creates debris and dramatically shapes landscapes into complex patterns. Rock fracture in periglacial regions (alpine, subpolar and polar) has often been attributed to the freezing and volumetric expansion of water trapped within pores and cracks. However the majority of frost heaving and of bedrock fracture results instead from ice segregation in ice lenses in the near-surface frozen regions. Ice segregation results in rock fracture and frost heave.".
- Q13414854 thumbnail Melting_pingo_wedge_ice.jpg?width=300.
- Q13414854 wikiPageWikiLink Q1049667.
- Q13414854 wikiPageWikiLink Q11466.
- Q13414854 wikiPageWikiLink Q1319360.
- Q13414854 wikiPageWikiLink Q1432833.
- Q13414854 wikiPageWikiLink Q1434835.
- Q13414854 wikiPageWikiLink Q1479708.
- Q13414854 wikiPageWikiLink Q163214.
- Q13414854 wikiPageWikiLink Q179177.
- Q13414854 wikiPageWikiLink Q191360.
- Q13414854 wikiPageWikiLink Q217651.
- Q13414854 wikiPageWikiLink Q2357969.
- Q13414854 wikiPageWikiLink Q2672013.
- Q13414854 wikiPageWikiLink Q36133.
- Q13414854 wikiPageWikiLink Q427711.
- Q13414854 wikiPageWikiLink Q484790.
- Q13414854 wikiPageWikiLink Q570309.
- Q13414854 wikiPageWikiLink Q7037549.
- Q13414854 wikiPageWikiLink Q7066307.
- Q13414854 wikiPageWikiLink Q8063.
- Q13414854 wikiPageWikiLink Q903265.
- Q13414854 wikiPageWikiLink Q903984.
- Q13414854 type Thing.
- Q13414854 comment "Ice segregation is the geological phenomenon produced by the formation of ice lenses, which induce erosion when moisture, diffused within soil or rock, accumulates in a localized zone. The ice initially accumulates within small collocated pores or pre-existing cracks, and, as long as the conditions remain favorable, continues to collect in the ice layer or ice lens, wedging the soil or rock apart.".
- Q13414854 label "Ice segregation".
- Q13414854 seeAlso Q2488728.
- Q13414854 depiction Melting_pingo_wedge_ice.jpg.