| 单词 | ice wedge |
| 释义 | > as lemmasice wedge ice wedge n. Physical Geography a vertical wedge-shaped mass of ice in the soil of a permafrost region; (also) a crack or fissure in the earth resulting from the formation of such ice. ΘΚΠ the world > the earth > water > ice > land ice > [noun] > mass of ice in permafrost region ice wedge1865 hydrolaccolith1955 1865 J. F. Campbell Frost & Fire I. xi. 134 In dragging particles into their place the packing force squeezes the ice-wedge under the gravel, and the ground is ‘blown up by the frost’. 1915 Jrnl. Geol. (Chicago) 23 642 The constant association of ice wedges with definite loci of frost cracks. 1975 Times 27 May 14/8 Ice-wedges indicate a climate too inclement for human occupation. 2008 C. Turney Ice, Mud & Blood iv. 115 When the permafrost melted, the ice wedges filled in with sediment and the pingos collapsed, forming big holes in the ground. < as lemmas |
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