| 单词 | altiplanation terrace |
| 释义 | > as lemmasaltiplanation terrace Levelling of the ground as a result of alternate freezing and thawing of soil or rock; = cryoplanation n. at cryo- comb. form 2. Usually attributive, esp. in altiplanation terrace.Quot. 1914 is from an abstract reporting Eakin, and has antiplanation in place of altiplanation in both the abstract and the index entry for it. ΘΚΠ the world > the earth > structure of the earth > formation of features > movement of material > [noun] > by wind, water, or ice transportation1830 deflation1893 altiplanation1915 cryoplanation1946 1914 H. M. Eakin in Jrnl. Washington Acad. Sci. 4 171 The conditions of ‘antiplanation’ in sub-Arctic regions.] 1915 J. M. Nickles Bibliogr. N. Amer. Geol. 1914 33 Eakin, Henry M... The conditions of ‘altiplanation’ in sub-Arctic regions (abstract) [citing the source of quot. 1914]. 1916 H. M. Eakin Yukon-Koyukuk Region 78 The author has suggested the term ‘altiplanation’ to designate a special phase of solifluction that, under certain conditions, expresses itself in terrace-like forms and flattened summits. 1944 Geogr. Rev. 34 341 A short discussion of polygonal soil patterns, altiplanation terraces, and turf-banked detritus benches contributes little that is new. 1970 R. J. Small Study of Landforms v. 180 Even in upland areas, ‘altiplanation terraces’, produced by differential frost attack and solifluxion, have been recognized. 1984 J. J. Lowe & M. J. C. Walker Reconstructing Quaternary Environments ii. 49 A process of excavation of bedrock by frost action..produces altiplanation or cryoplanation benches. 2010 D. Huddart & T. Stott Earth Environments xxi. 587/2 The third stage is characterized by an altiplanation summit flat. < as lemmas |
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