| 单词 | dune bedding |
| 释义 | > as lemmasdune bedding dune bedding n. a pattern of bedding (bedding n. 4) found in sandstones which preserves the outline of dunes from which the rock was formed. ΚΠ 1903 Mem. Calif. Acad. Sci. 3 26 Some of these lower strata show sand-dune bedding, while others are horizontal.] 1913 A. W. Grabau Princ. Stratigr. xiii. 550 This deposit also shows the other common characters of wind-drifted material, such as uniform size of grains and dune bedding structure. 1946 L. D. Stamp Britain's Struct. & Scenery xxii. 229 The Permian Mauchline Sandstones..are believed to represent desert sand-dunes for they exhibit dune-bedding on a huge scale. 2016 C. Pellant & H. Pellant Geol. Struct. 92 Dune bedding, produced by the large-scale movement of sand under the influence of the wind, is usually on a bigger scale than water-deposited cross-bedding. < as lemmas |
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