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geology - METAMORPHIC ROCK [ index ]
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       BURIAL METAMORPHISM        CONTACT METAMORPHISM      
       DYNAMIC METAMORPHISM       HYDROTHERMAL METAMORPHISM
       REGIONAL METAMORPHISM      SHOCK METAMORPHISM
       SUBDUCTION METAMORPHISM
     
       FOLIATED                   NON-FOLIATED  
   
       PARENT ROCK                PROTOLITH

       amphibolite                gneiss                     greenstone
       marble                     phyllite                   quartzite
       schist                     slate


       TECTONITE

       
       LITHOSTATIC PRESSURE    
   
       ----------------------------------------------------------------------------------

       FOLIATED ROCK 
       -------------
       SHALE
       slate --> phyllite --> schist --> gneiss -->  
                                 migmatite --> MELTING 

        NON-FOLIATED ROCK
        ----------------- 
        LIMESTONE
        marble -->



       temperature
       200 C  --  800 C



       L-Tectonites (Lineations) indicate Constrictional Strain
       S-Tectonites (Foliations) indicate Flattening Strain
       L-S Tectonites (Plain strain) indicate both elongation and flattening strain