| 单词 | reef limestone |
| 释义 | > as lemmasreef limestone reef limestone n. Geomorphology limestone originating in coral or other natural reefs. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > others lias1404 stone marrow1681 stone marl1682 saint's head stone1763 Kentish rag1769 watericle1776 kankar1793 Cotham1816 mountain limestone1817 tosca1818 cornstone1819 burr1829 coral-limestone1831 scar-limestone1831 Wenlock limestone1834 bavin1839 curf1839 Solenhofen slate1841 Beer stone1871 miliolite limestone1872 Clipsham1877 reef limestone1884 Hopton wood1888 thermo-calcite1888 Kilkenny marble1930 micrite1959 1884 Amer. Naturalist 18 181 1000 feet of the upper part of a mountain is reef limestone and originally the formation must have been 2000 feet thick. 1938 M. Black Hatch & Rastall's Petrol. Sedimentary Rocks (ed. 3) viii. 163 The term ‘reef limestone’ has been used in geological literature with varying significance. In this discussion, shelly or structureless, unbedded limestones which show no clear connection with sessile benthonic organisms will be left out of consideration. 1990 C. Pellant Rocks, Minerals & Fossils 106 Coral reefs often contain abundant bryozoans and their skeletons are very good at binding lime mud, thereby helping the development of reef limestones. < as lemmas |
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