Meaning of caliche

ca•li•che

Pronunciation: (ku-lē'chē), [key]
— n. Geol.
  1. a surface deposit consisting of sand or clay impregnated with crystalline salts such as sodium nitrate or sodium chloride.
  2. a zone of calcium carbonate or other carbonates in soils of semiarid regions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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