单词 | pseudo-oolith |
释义 | pseudo-oolith [¦sü·dō`ō´ō´lith] GEOLOGY A spherical or roundish pellet or particle (generally less than l millimeter in diameter) in a sedimentary rock, externally resembling an oolith in size or shape but of secondary origin and amorphous or crypto- or microcrystalline, and lacking the radial or concentric internal structure of an oolith. Also known as false oolith. |
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