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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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