| 单词 | rock-builder |
| 释义 | > as lemmasrock-builder rock-builder n. any of various marine organisms which contribute to the formation of limestones and other sedimentary rocks, typically by the accumulation or deposition of calcium carbonate (as in the skeletal remains of foraminiferans, corals, etc.) or by the trapping of sediment particles. ΚΠ 1838 Visit Brit. Mus. 81 In the second case..we have the Caryophyllia, one of the rock-builders above mentioned. 1876 D. Page Adv. Text-bk. Geol. (ed. 6) iii. 67 The principal rock-builders among these microscopic organisms. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) xi. 244 Some of them have been shown to play a large part in the building of modern coral-reefs, and they were no less important as rock-builders in the past. 2002 Micropaleontology 48 153/1 They are important rock-builders and foraminiferal biogenic limestones are well developed in the Tertiary. < as lemmas |
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