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单词 ground ice
释义

Examples of 'ground ice' in a sentence
ground ice

Marine sediments were frozen syn- and epigenetically with cryotexture and ground ice formation.Ice-wedge polygons are widespread and conspicuous surficial expressions of ground-ice in permafrost landscapes.Such changes include succession in vegetation, soils, hydrology, and renewed permafrost aggradation, ground ice accumulation and localized frost heave.A thick coat of ground ice covered 98% of the lowland ranges, almost completely blocking access to terrestrial forage.Such subsidence, together with debris landforms containing ground ice and ice tunnels, appear to cause the observed large number variability.Ice-wedge networks underlie polygonal terrain and comprise the most widespread form of massive ground ice in continuous permafrost.Methane concentrations were determined for more than 400 samples taken from frozen sediments, ground ice and active layer.
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