- layers of shale
- 夹层
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
layers of shale
Look at other dictionaries:
shale — [ ʃeıl ] noun uncount a type of smooth dark rock that breaks into thin layers … Usage of the words and phrases in modern English
shale — (n.) 1747, possibly a specialized use of M.E. schale shell, husk, pod (late 14c.), also fish scale, from O.E. scealu (see SHELL (Cf. shell)) in its base sense of thing that divides or separate, in reference to the way the rock breaks apart in… … Etymology dictionary
shale — [shāl] n. [< ME, lit., shell < OE scealu, SHELL] a kind of fine grained, thinly bedded sedimentary rock formed largely by the hardening of clay: it splits easily into thin layers: cf. MUDSTONE … English World dictionary
shale — shalelike, shaley, adj. /shayl/, n. a rock of fissile or laminated structure formed by the consolidation of clay or argillaceous material. [1740 50; orig. uncert.; cf. obs. shale to split (said of stone), to shell, deriv. of shale shell, husk, OE … Universalium
shale — [[t]ʃe͟ɪl[/t]] shales N MASS Shale is smooth soft rock that breaks easily into thin layers … English dictionary
shale — Sedimentary rock formed by induration of a clay, silty clay, or silty clay loam deposit and having the tendency to split into thin layers, i.e., fissility. HP … Glossary of landform and geologic terms
shale — ʃeɪl n. sedimentary rock composed of extremely thin layers of silt and clay … English contemporary dictionary
shale — UK [ʃeɪl] / US noun [uncountable] a type of smooth dark rock that breaks into thin layers … English dictionary
Oil shale in Estonia — Outcrop of Ordovician kukersite oil shale, northern Estonia Oil shale in Estonia is an important resource for the national economy. Estonia s oil shale deposits account for just 17% of total deposits in the European Union but the country… … Wikipedia
Oil shale geology — Main article: Oil shale Outcrop of Ordovician kukersite oil shale, northern Estonia. Oil shale geology is a branch of geologic sciences which studies the formation and composition of … Wikipedia
oil shale — Geol. a black or dark brown shale or siltstone rich in bitumens, from which shale oil is obtained by destructive distillation. [1870 75] * * * Any fine grained sedimentary rock that contains solid organic matter (kerogen) and yields significant… … Universalium
