| 单词 | oil shale |
| 释义 | > as lemmasoil shale oil shale n. a black or dark brown shale which contains an insoluble organic deposit (kerogen) from which oil can be obtained by distillation. ΘΚΠ the world > the earth > minerals > mineral sources > [noun] > strata containing minerals fuller's eartha1350 fulling eartha1399 fulling clay1647 second bottom1787 iron pan1811 ledge1847 blue lead1854 oil shale1866 oil sand1875 Cambridge coprolite1881 Cambridge greensand1882 gem-bed1886 the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > shale > others till1672 bass1686 bat1686 blue metal1699 scallop slate1711 black shale1730 shale-shiver1794 shale1825 till-stonec1830 Wenlock shale1834 famp1836 Boghead1858 oil shale1866 paper shale1874 symon1881 paste-rock1882 slasto1953 1866 S. H. Daddow Coal, Iron, & Oil 372 (caption) Marcellus and oil shales. 1919 Chambers's Jrnl. June 390/2 The famous oil-shale of Torbanehill, torbanite or bog-head cannel, is often regarded as a variety of cannel coal. 1975 Petroleum Economist Sept. 349/2 Morocco is preparing to exploit its large oil shale deposits at Timahdit in the Middle Atlas Mountains. 1998 Ambix 45 83 Since the 1830s, the Germans had been producing fotogen from the distillation of oil shales and peats. < as lemmas |
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