| 单词 | paper shale |
| 释义 | > as lemmaspaper shale paper shale n. Geology shale which readily splits into very thin, paper-like laminae. ΘΚΠ 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 1874 J. D. Dana Man. Geol. (ed. 2) iii. i. 425 Next below these, black paper shales, with many fossils and a bone-bed. 1931 Prof. Papers U.S. Geol. Surv. No. 168. 7/2 ‘Paper shale’ is the term applied to finely laminated claystones, siltstones, mudstones, and marlstones that show a pronounced tendency to part along the closely spaced bedding planes. 1983 J. McPhee In Suspect Terrain 161 We came up through the debris of three cordilleras, through repetitive sandstones and paper shales. < as lemmas |
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