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caliche |
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caliche [kə′lē·chē] (geology) Conglomerate of gravel, rock, soil, or alluvium cemented with sodium salts in Chilean and Peruvian nitrate deposits; contains sodium nitrate, potassium nitrate, sodium iodate, sodium chloride, sodium sulfate, and sodium borate. A thin layer of clayey soil capping auriferous veins (Peruvian usage). Whitish clay in the selvage of veins (Chilean usage). A recently discovered mineral vein. A secondary accumulation of opaque, reddish brown to buff or white calcareous material occurring in layers on or near the surface of stony soils in arid and semiarid regions of the southwestern United States; called hardpan, calcareous duricrust, and kanker in different geographic regions. Also known as calcareous crust; croute calcaire; nari; sabach; tepetate. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Built of adobe, caliche, and limestone, "La Casita" was recently restored by the Texas Conservation Society. Otherwise your new plants will drown in the water that's just sitting on the hard caliche shelf. Huddleston, a renowned planning consultant and park specialist, created a development plan for the Canyon Lakes project, which included "a 1,400-acre greenbelt connected by a chain of lakes and dams, recreation pavilions, picnic shelters, environmental study areas, children's play area in the sculpting of old caliche pits, and a bird sanctuary. |
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