单词 | ice mill |
释义 | > as lemmasice mill ice mill n. Geology a place where a glacier grinds out the underlying rock by the action of loose stones. ΚΠ 1866 J. Kirk Age of Man xii. 135 The gravel and sand must first have been manufactured (as we have expressed it,) from the original rocks by this vast ice-mill. 1891 Pall Mall Gaz. 30 Nov. 3/1 A wedge of rounded rock, worn smooth by the vast ice-mills of the glacial epoch. 1947 Sci. News Let. 4 Jan. 7/1 The ponderous ice mills of the Pleistocene glacial epoch ground the rock into fine silt. 1998 D. E. Booth Environmental Consequences Growth iv. 59 The raw material for most of the prairie soils was either a fine-grain rock flour called loess, produced in the ice mills of the glacial rivers, or else glacial till. < as lemmas |
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