Anhydrite
Revision as of 20:15, 14 April 2014 by FWhitehurst (talk | contribs) (added Category:Sedimentology and stratigraphy – carbonate using HotCat)
Anhydrite is the anhydrous form of gypsum, CaSO4, to which it readily transforms with the introduction of water. Gypsum is transform to anhydrite at depth because of the increase in temperature. Anhydrite beds are often seals for traps.
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