Metamorphic reaction
A metamorphic reaction is a chemical reaction that
takes
place
during
the
geological
process
of
metamorphism wherein one assemblage of minerals is
transformed into a second assemblage which is stable
under the new temperature/pressure conditions resulting
in the final stable state of the observed metamorphic
rock.[1]
Examples include the production of talc under varied
metamorphic conditions:
serpentine + carbon dioxide → talc
+ magnesite + water
chlorite + quartz → kyanite + talc +
water
Contents
Polymorphic Transformations
Exsolution Reactions
Devolatilization Reactions
Continuous Reactions
Ion Exchange Reactions
Oxidation/Reduction Reactions
Reactions Involving Dissolved Species
Chemographics
Petrogenetic Grids
Schreinemakers Method
Reaction Mechanisms
See also
Notes
Polymorphic Transformations
Exsolution Reactions
Devolatilization Reactions
Continuous Reactions
Schematic representation of a metamorphic reaction.
Abbreviations of minerals: act = actinolite; chl = chlorite; ep
= epidote; gt = garnet; hbl = hornblende; plag = plagioclase.
Two minerals represented in the figure do not participate in
the reaction, they can be quartz and K-feldspar. This
reaction takes place in nature when a mafic rock goes from
amphibolite facies to greenschist facies.
Ion Exchange Reactions
Oxidation/Reduction Reactions
Reactions Involving Dissolved Species
Chemographics
Petrogenetic Grids
Schreinemakers Method
Reaction Mechanisms
See also
Index mineral
Notes
1. "Types of Metamorphic Reactions" (http://www.tulane.edu/~sanelson/eens212/metamorphreact.htm). Tulane
University. Retrieved 2007-06-22.
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