Mineralogie pp 425-450 | Cite as

Phasengleichgewichte und Mineralreaktionen in metamorphen Gesteinen

  • Martin Okrusch
  • Siegfried Matthes †
Chapter
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Part of the Springer-Lehrbuch book series (SLB)

Zusammenfassung

Wie wir im vorausgehenden Kapitel gezeigt hatten, führt die Gesteinsmetamorphose zu tiefgreifenden Veränderungen im Gefüge und im Mineralbestand von Gesteinen. Durch prograde und retrograde Mineralreaktionen entstehen neue Mineralgesellschaften, die eine schrittweise Anpassung an die sich verändernden P-T-Bedingungen dokumentieren. Dabei kann – zumindest beim Höhepunkt der Metamorphose – ein thermodynamisches Gleichgewicht erreicht oder annähernd erreicht werden, so dass man von Gleichgewichtsparagenesen sprechen kann. Im folgenden Kapitel wollen wir wichtige Mineralreaktionen und die dabei entstehenden Paragenesen näher kennenlernen. Darüber hinaus sollen die Methoden diskutiert werden, mit denen man die Stabilitätsbedingungen metamorpher Paragenesen quantitativ abschätzen kann.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Martin Okrusch
    • 1
  • Siegfried Matthes †
  1. 1.Lehrstuhl für Geodynamik und Geomaterialforschung Universität WürzburgWürzburgGermany

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