| 释义 |
caliche Min.|kəˈliːtʃeɪ|
[Amer. Sp., f. Sp. caliche pebble in a brick, flake of lime.]
In arid areas of North and South America, any of various mineral deposits (esp. native Chile saltpetre) containing sodium nitrate, calcium carbonate, or other salts.
1858Simmonds Dict. Trade, Caliche, a name for nitrate of soda found in Peru. 1883R. Haldane Workshop Rec. 349/2 Iodine occurs in caliche or raw nitrate deposit, as iodate of sodium. 1892E. S. Dana J. D. Dana's Syst. Min. (ed. 6) 871 In the district of Tarapaca, northern Chili,..the dry pampa..is covered with beds of this salt (caliche) several feet in thickness. 1939W. H. Twenhofel Princ. Sedimentation ix. 342 Caliche..is a deposit of calcium carbonate and other salts made in semiarid regions. |