English

Noun

schistosity ‎(countable and uncountable, plural schistosities)

1. (geology) The quality or state of being schistose.
   • 1990, N[eville] J. Price; J[ohn] W. Cosgrove, “Rock Cleavage and Other Tectonic Fabrics”, in Analysis of Geological Structures, Cambridge: Cambridge University Press, ISBN 978-0-521-26581-2, page 434:

     It will become apparent from the following discussion that some of the various structures which are grouped together as cleavage may correspond to a schistosity and/or foliation. Accordingly, Wilson defines rock cleavage (and schistosity) as a planar structure, usually distinct from stratification, which permits rocks to be fractured or cleaved into thin slices.

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