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schistosity


'schistosity' can also refer to...

 

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The planar alignment of platy micas and elongate amphiboles in a regional metamorphic rock. The alignment of these minerals into a planar fabric is caused by (a) the physical rotation of the mineral grains under the influence of a shear stress, or (b) the syntectonic, metamorphic growth of new minerals with their long axes perpendicular to the principal compressive stress direction.

(a) the physical rotation of the mineral grains under the influence of a shear stress, or (b) the syntectonic, metamorphic growth of new minerals with their long axes perpendicular to the principal compressive stress direction.

Subjects: Earth Sciences and Geography.


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