单词 | anvil rock |
释义 | > as lemmasAnvil Rock Anvil Rock n. [after Anvil Rock, the name of a sandstone outcrop in Union County, Kentucky, so called on account of its shape] Geology (in full Anvil Rock sandstone) (the name of) a thick sandstone formation in Kentucky, Illinois, and Indiana, laid down in the Pennsylvanian (Upper Carboniferous) period. ΚΠ 1856 D. D. Owen Rep. Geol. Surv. Kentucky 45 The Lower Coal Measures are separated from these Upper Coal Measures by a massive sandstone formation, which is universally known in South-western Kentucky by the name of the ‘Anvil Rock’. 1873 J. Macfarlane Coal-regions Amer. xx. 440 The Anvil rock-sandstone, of Kentucky, proves to be the same as that which was there called the Mahoning sandstone. 1963 Jrnl. Geol. (Chicago) 71 458/2 In this mine a small channel of the Pennsylvanian Anvil Rock Sandstone can be mapped. 2003 S. F. Greb et al. in M. A. Chan & A. W. Archer Extreme Depositional Environments 132/2 The Anvil Rock Sandstone..truncates the coal along an elongate belt in southern Illinois. < as lemmas |
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