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caliche
[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.
Pronunciation: k ′lē·chē
calcareous crust
[geology] See: caliche
Pronunciation: kal′ker·ē·s ′krst
calcareous duricrust
[geology] See: caliche
Pronunciation: kal′ker·ē·s ′dʊr·i′krst
Chile saltpeter
[mineralogy] Also known as Chile niter.
Soda niter found in large quantities in caliche in arid regions of northern Chile.
Deposits of sodium nitrate.
Pronunciation: ¦chil·ē ′s⊙lt′pēd·r
croute calcaire
[geology] See: caliche
Pronunciation: ′krüt kal′ker
dietzeite
[mineralogy] Ca2(IO3)2(CrO4) A dark-golden-yellow iodate mineral commonly in fibrous or columnar form as a component of caliche.
Pronunciation: ′dēt·s′īt
hardpan
[geology] See: caliche
Pronunciation: ′härd′pan
nari
[geology] See: caliche
Pronunciation: ′när·ē
sabach
[geology] See: caliche
Pronunciation: ′sä′bäk
tepetate
[geology] See: caliche
Pronunciation: ′tep·′täd·ē
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