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Lias

資料來源 : pyDict

黑侏羅統,藍色石灰岩

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Lias \Li"as\ (l[imac]"as), n. [Cf. F. lias, fr. liais sort of
   limestone, OF. also liois; perh. of Celtic origin, cf. Armor.
   liach, leach, a stone, Gael. leac, W. llech. Cf. {Cromlech}.]
   (Geol.)
   The lowest of the three divisions of the Jurassic period; a
   name given in England and Europe to a series of marine
   limestones underlying the O["o]lite. See the Chart of
   {Geology}.
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