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单词 periglaciation
释义 ˌperiglaciˈation Geomorphol.
[f. peri- + glaciation, after prec.]
The state of being subject to a periglacial climate; periglacial processes collectively.
1957M. T. te Punga in Tijdschr. Koninklijk Nederlandsch. Aardijkskundig Genootschap LXXIV. 408 Wind-worked pebbles and boulders..are well known as relics of periglaciation in many parts of the world.1963Geomorphol. Abstr. 38 (heading) Periglaciation of Canada.1968Geogr. Abstr. A. 30 The scarp..was formed during the Quaternary when the region underwent severe periglaciation with immense frost riving and modification of plateau valleys.1970R. J. Small Study of Landforms i. 2 Our knowledge of the vital role of periglaciation in shaping the landscapes of present-day temperate areas is based almost wholly on analysis by geomorphologists of the distribution and character of solifluxion gravels, ‘head’, ‘coombe rock’ and the like.
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