Encyclopedia > Evaporite

  Article Content

Evaporite

Evaporites are sediments that result from the evaporation of saline water. Most evaporites are derived from bodies of sea-water, though saline lakes may also be an important source (e.g. the Great Salt Lake, Utah).

Evaporites start to precipitate when their concentration in water reaches such a level that they can no longer exist as solutes. They precipitate out of solution in the reverse order of their solubilities, such that the order of precipitation is:

  1. Calcite (CaCO3) and dolomite (CaMg(CO3)2)
  2. Gypsum (CaSO4) and anhydrite[?] (CaSO4.2H2O)
  3. Halite[?] (i.e. common salt, NaCl)
  4. Potassium and magnesium salts

See also



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Flapper

... attitude of non-restraint simply could not find a place amid the economic hardships of the 1930s. In many ways, however, the self-reliant flapper had allowed the ...

 
 
 
This page was created in 60.1 ms