a deposit of sand or clay on the surface containing crystallized salts such as salt chloride or sodium nitrate utilized specifically regarding the salt nitrate build up of Chile and Peru
- crust or level of difficult subsoil encrusted with calcium-carbonate happening in arid or semiarid regions
- nitrate-bearing stone or gravel associated with the sodium nitrate build up of Chile and Peru
sodium nitrate build up in Chile and Peru, 1858, from American Spanish, from Spanish caliche "pebble in a brick," from Latin calx "pebble" (see chalk (letter.)).
- calcareous pan [calcrete]
- kankar [Ind.] [caliche, hardpan]
Extensive deposits of the salt (called caliche in its crude, impure state) in the provinces of Tacna, Tarapaca, Antofagasta and Atacama owe their existence to the rainless character of the climate.